Tag Archives: Brazil

Rallidae gen. & sp. ‘Ilha da Trindade’

Trindade Rail (Rallidae gen. & sp.)

The Ilha da Trindade is a volcanic island that is located in the Atlantic Ocea, about 1150 km offshore the Brazilian eastern coast.

The island harbors some sea birds but is surprisingly lacking any land birds, a situation that is highly unlikely, not only in my own opinion ….:

In my opinion, it is highly unlikely that there was not an endemic species of rail (Rallidae) on Trindade in the past, as there was ample habitat and these birds successfully colonized all the other South Atlantic islands …. That I was unable to find any fossil remains of such a bird may perhaps be attributed to my usual good fortune temporarily running out. The great abundance of land crabs on Trindade may also have reduced the chances of any rail carcasses surviving long enough to be preserved, although this did not prevent rail bones from being fossilized on Fernando de Noronha, where land crabs also occur.” [1]

If there have been any land birds living on the island (and there surely have), they must have become extinct very shortly after the discovery of the island in 1502, followed by the inevitable introduction of cats, mice (but fortunately no rats) and several kinds of grazing mammals.

*********************

References:

[1] S. L. Olson: Natural history of vertebrates on the Brazilian islands of the mid South Atlantic. National Geographic Society Research Reports 13: 481-492. 1981

*********************

edited: 03.05.2022

Acalypha fragilis Pax & K. Hoffm.

Fragile Copperleaf (Acalypha fragilis)

This species was described in 1937; apparently based on material that had been collected three years prior.

The Fragile Copperleaf is a tree that had a very restricted distribution in the Caatinga (a semi-arid tropical vegetation typical for interior north-eastern Brazil) in the Crato region in the state of Ceará, north-eastern Brazil.

The species was never found since and is believed to be possibly extinct.

*********************

edited: 28.01.2024

Hyperaulax ramagei (E. A. Smith)

Ramage’s Noronha Snail (Hyperaulax ramagei)

Ramage’s Noronha Snail was described in 1890; it is only known from the main island of the Fernando de Noronha archipelago offshore north-eastern Brazil, where they were found to be “imbedded in sandy mud on a raised reef and have a semi-fossilized appearance”. [1]

The species must have gone extinct somewhat prior to their description as many specimens appeared quite fresh and still were bearing an intact periostracum (see photo below).

***

The genus contains one additional species, also endemic to the same archipelago, Ridley’s Noronha snail (Hyperaulax ridleyi (E. A. Smith)); this species is still alive today. [2][3]

*********************

Photo from: ‘Rodrigo B. Salvador; Daniel C. Cavallari: Taxonomic revision of the genus Hyperaulax Pilsbry, 1897 (Gastropoda, Stylommatophora, Odontostomidae). Zoosystematics and Evolution 95(2): 453-463. 2019’

https://creativecommons.org/licenses/by/4.0/

*********************

References:

[1] H. N. Smith: Mollusca. In: Ridley HN, ed. Notes on the Zoology of Fernando Noronha. Zoological Journal of the Linnean Society 20: 473-570. 1890
[2] A. V. L. Freitas; M. S. Miranda; f. D. Passos: Land snails of the Fernando de Noronha archipelago, Brazil. American Malacological Bulletin 37: 66-69. 2019
[3] Rodrigo B. Salvador; Daniel C. Cavallari; Carl C. Christensen; André V. L. Freitas; Marcel S. Miranda; Flávio D. Passos: The endemic land snails of the Fernando de Noronha archipelago, Brasil. Tentacle 30: 6-8. 2022

*********************

edited: 22.01.2024

Peperomia beckeri E. F. Guim. & R. J. V. Alves

Becker’s Peperomia (Peperomia beckeri)

Becker’s Peperomia was described in 1998 “from an old but well preserved herbarium specimen” that had been collected in 1965; it was endemic to the Ilha da Trindade some 1500 km offshore the eastern coast of Brazil, an island that suffered extremely from the introduction of feral mammals, especially goats that had been introduced already in 1700. These goats ate away nearly the whole vegetation of the island, leading to the complete loss of the former forest.:

Before 1821, however, something or some event had killed them – killed them all – leaving a weird landscape of standing corpses. It was, in the words of one who saw it, “a forest of desolation, as if nature had at some particular moment ceased to vegetate.”” [1]

When the goats were finally removed from the island in 2005, the flora recovered very quickly, especially the fern species, which apparently survived in the form of spores in the ground. Becker’s Peperomia, however, was never found again, despite field searches. [3]

***

The species was believed to have been rediscovered in 2009, however, these plants later turned out to have been another, misidentified species. [2][3]

*********************

References:

[1] Richard H. Eyde; Storrs L. Olson: The dead trees of Ilha da Trindade. Bartonia 49: 32-51. 1983
[2] R. J. V. Alves; N. G. da Silva; A. Aguirre-Muñoz: Return of endemic plant populations on Trindade Island, Brazil, with comments on the fauna. In: C. R. Veitch; M. N. Clout; D. R. Towns (eds.): Island Invasives: Eradication and Management. pages 259-263. 2011
[3] Nílber Gonçalves da Silva; Ruy José Válka Alves; Lana da Silva Sylvestre; Ruy Barreto dos Santos: Two rediscoveries and one extinction for the flora of Trindade Island, Brazil. Journal of the Torrey Botanical Survey 140(2): 230-235. 2013

*********************

edited: 03.05.2022

Philydor novaesi Teixeira & Gonzaga

Alagoas Foliage-Gleaner (Philydor novaesi)

The Alagoas Foliage-Gleaner was described in 1983, it was restricted to the states of Alagoas and Pernambuco in northeastern Brazil, where it preferablky inhabited tropical lowland forest but was also found in second-growth forest at elevations of up to 400 to 550 m.

The species apparently was most closely related to the Black-capped Foliage-gleaner (Philydor atricapillus (Wied)) (see photo), it reached a size of about 18 cm and was mainly inconspicuously brown colored.

The Alagoas Foliage-Gleaner has disappeared from its former distribution area due to habitat destruction mainly by forest clearance for agricultural purposes, since 2018 it is considered most likely extinct.

********************

Black-capped Foliage-gleaner (Philydor atricapillus)

Photo: Dario Sanches
http://creativecommons.org/licenses/by-sa/2.0

********************

edited: 01.09.2019

Cynolebias elegans Costa

Elegant Bahia Killifish (Cynolebias elegans)

The Elegant Bahia Killifish was described in 2017; it is known only from a single locality, a temporary pool in the Verde Grande River drainage in Bahia, Brazil where in 2005 the five now known specimens were found.

All subsequent searches (in 2009, 2020, and 2017) found the habitat to be severely modificated, especially due to cattle ranching, and all failed to find the species.

The Elegant Bahia Killifish is now sadly extinct.

*********************

Photo from: ‘Wilson J. E. M. Costa: Description of two endangered new seasonal killifish species of the genus Cynolebias from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae). Zoosystematics and Evolution 93(2): 333-341. 2017

https://creativecommons.org/licenses/by/4.0/

*********************

References:

[1] Wilson J. E. M. Costa: Description of two endangered new seasonal killifish species of the genus Cynolebias from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae). Zoosystematics and Evolution 93(2): 333-341. 2017

*********************

edited: 15.02.2024

Typhlobleus auriculatus de Pinna & Zuanon

Ear-bearing Pencil Catfish (Typhlobleus auriculatus)  

The Ear-bearing Pencil Catfish was described in 2013; it was found near a marginal sand bank in the lower Rio Xingù in central Brazil.

The species is only about 3 cm long; it can be distinguished from all of its congeners by the absence of an anal fin as well as by the presence of a well-defined lateral pit immediately posterior to the head, representing a modified (ear-like) pseudotympanus connected by a superficial groove to a pit entering the skull. [1]

The type locality is now probably destroyed due to the building of the Belo Monte dam, which will be the world’s third-largest hydroelectric dam when it is finished; this will lead to the extinction not only of this strange kind of fish ….

*********************

References:

[1] M. C. C. de Pinna; J. Zuanon: The genus Typhlobelus: Monopoly and taxonomy, with description of a new species with a unique pseudotympanic structure (Teleostei: Trichomycteridae). Copeia 2013(3): 441-453. 2013

*********************

edited: 19.02.2024

Boana cymbalum (Bokermann)

Campo Grande Treefrog (Boana cymbalum)

The Campo Grande Treefrog is known from only six specimens that were found in the early 1960s at two sites in São Paulo, Brazil.

The only known localities of this species are now destroyed and despite dozens of targeted surveys, the species has never been recorded since 1963 and thus is officially considered to be extinct.

***

Hyla cymbalum Bokermann

*********************

edited: 28.02.2024

Dyris amazonicus (Haas)

(Dyris amazonicus)

This species was described in 1949; it is known from only five specimens that were collected in the lower part of the Tapajos River near Belterra in the state of Pará, Brazil.

The species is only known from empty shells, life individuals were never found; it was furthermore never found since its description and appears to be extinct now.

*********************  

References:  

[1] F. P. Wesselingh: On relict hydrobiid species in Brazilian Amazonia (Gastropoda, Prosobranchia, Hydrobiidae). Basteria 64: 129-136. 2000

*********************

edited: 29.01.2024

Rallus sp. ‘Fernando de Noronha’

Fernando de Noronha Rail (Rallus sp.)

The Fernando de Noronha Rail is an enigmatic bird known from subfossil remains that had been found in the late 1970s on the island of Fernando de Noronha, 354 km offshore the coast of Brazil.:

Remains of a new species of rail (Rallidae) were also found, bringing the total known land-bird fauna to four species. Most of the elements of the skeleton, from several different individuals, are represented. This was a medium- size rail with the wings reduced, but to a lesser extent than in many flightless species. It does not appear to be particularly close morphologically to any of the species of rails from mainland Brazil. I have briefly alluded to this form elsewhere …, but it has yet to be formally described.

The form may have been a member of the genus Laterallus or Rallus, however, the species has still not been described. [1]

*********************

References:

[1] S. L. Olson: Natural history of vertebrates on the Brazilian islands of the mid South Atlantic. National Geographic Society Research Reports 13: 481-492. 1981

*********************

edited: 03.05.2022

Bombus rubriventris Lepeletier

Red-bellied Bumblebee (Bombus rubriventris)

The Red-bellied Bumblebee is known so far only from the holotype, which is a queen; it was allegedly collected in Brazil, apparently in the early 19th century, an exact locality, however, is not known but it is suspected that it might have come the Atlantic Forest.

The holotype is generally black with and shows a mainly reddish abdomen.

The bumblebee fauna of Brazil appears to be relatively well-known, but this species has never been recorded and thus is very likely extinct. [1]

*********************

References:

[1] Paul H. Williams: Bombus rubriventris: type locality, different histories of bumblebees in the New World, and a likely invertebrate extinction. Journal of Natural History 49(19-20): 1159-1171. 2015

*********************

edited: 25.04.2022

Vegrandinia trindadensis (Breure & Coelho)

Trindade Vegrandinia Snail (Vegrandinia trindadensis)

This species was described in 1976; it is, or rather was, restricted to the Ilha da Trindade, a volcanic island in the Atlantic Ocean, about 1150km offshore the east coast of Brazil.

Apparently, the species is known exclusively from empty shells, which differ greatly in their size depending on their collection date, foreshadowing the reasons for their final extinction.:

Curiously, the shell length of the adult specimens analysed by Breure and Coelho (1976) averaged from 8 to 9 mm (which was an overestimation, our measures of the same specimens average 7 mm), while the ones collected by the MD-55 and later expeditions average 4.8 mm; the shell morphology, though, is the same. It is suspected that this reduction in size reflects inappropriate environmental conditions due to the Island’s much degraded environment.

The native flora of the island is now largely destroyed due to introduced goats, this again led to the extinction of all native (and non-native, except for two spp.) land snail species! [1][2]

*********************

References:

[1] Rodrigo B. Salvador; Carlo M. Cunha; Luiz Ricardo L. Simone: Taxonomic revision of the orthalicid land snails (Pulmonata: Stylommatophora) from Trindade Island, Brazil. Journal of Natural History 47(13-14): 949-961. 2013
[2] Rodrigo B. Salvador; Nílber G. Silva; Carlo M. Cunha; Luiz Ricardo L. Simone; Ruy J. V. Alves: Rediscovery of living land snails on Trindade Island, Brazil. American Malacological Bulletin 32(1): 140-142. 2014

*********************

Photo: Rodrigo Salvador

(under creative commons license (3.0))
https://creativecommons.org/licenses/by/3.0/

*********************

edited: 02.05.2022

Neochen pugil (Winge)

Minas Gerais Goose (Neochen pugil)

This species was described in 1888 based on fossil bones that were found in Minas Gerais, Brazil.

The remains were dated to Late Pleistocene to Early Holocene; thus, the species is briefly mentioned here. [1]

***

syn. Chenalopex pugil Winge

*********************

References:

[1] O. Winge: Fugle fra Knoglehuler i Brasilien. E Museo Lundii 1(2): 1-54. 1888

*********************

edited: 08.01.2024

Crax sp. ‘Mituporanga’

Mituporanga (Crax sp.)

The Mituporanga is known only from a very old painting (see below), drawn by Eckhout Hoflössnitz sometimes between 1653 and 1659, which in fact might just depict a Bare-faced Curassow (Crax fasciolata Spix) or indeed a completely distinct species that is now lost. This painting is included in a book that depicts some birds from the former Dutch colony of Dutch Brazil, an area that today is covered mainly by the federative units of Alagoas, Bahia, Ceará, Maranhão, Paraíba, Pernambuco, Piauí, Rio Grande do Norte and Sergipe. [1]

Ornithologists have not recorded a species of Crax in the Northern Mata Atlântica. Thus, the plate and other paintings from the same time, and oral testimonies from old hunters are unambiguous evidence for either the historic disappearance of a disjunct population of the similar-looking bare- faced curassow (Crax fasciolata) or an undescribed species.” [2]

********************

References:

[1] Dante Martins Teixeira: Os quadros de aves tropicais do Castelo de Hoflössnitz na Saxônia e Albert Eckhout (ca. 1610–1666), artista do Brasil Holandês. Revista do Instituto de Estudos Brasileiros 49: 67-90. 2009
[2] Alexander C. Lees; Stuart L. Pimm: Species, extinct before we knew them? Current Biology 25(5): 177-180. 2015

********************

Depiction by Eckhout Hoflössnitz, between 1653 and 1659

(public domain)

********************

edited: 25.04.2021

Dicolpomys fossor Winge

Digging Spiny Rat (Dicolpomys fossor)

This species was described in 1887 on the basis of fossils that were found in Pleistocene deposits in Brazil; additional material was later also found in deposits that could be dated to the Early Holocene.

The same species, however, was recently recorded based on subfossil remains from the Late Holocene of Argentinia, thus it appears to have survived there and was then extirpated by humans, maybe even after the arrival of the first European settlers in the 15th century. [1]

*********************

References:

[1] Diego H. Verzi; A. Itarí Olivares; Patricia Hadler; Juan C. Castro; Eduardo P. Tonni: Occurrence of Dicolpomys (Echimyidae) in the late Holocene of Argentinia: The most recently extinct South American caviomorph genus. Quaternary International 490: 123-131. 2018

*********************

edited: 19.08.2022

Heteragrion beschkii Hagen in Selys

Beschki’s Heteragrion Damselfly (Heteragrion beschkii)

Beschki’s Heteragrion Damselfly was described in 1862; it was apparently restricted to what today is the city of Nova Friburgo in the state of Rio de Janeiro, Brazil.

The species might have been a specialist of the Atlantic Forest, a habitat that today is nearly completely destroyed.

*********************

edited: 02.05.2022

Brachygalba lugubris ssp. phaeonota Todd

Todd’s Brown Jacamar (Brachygalba lugubris ssp. phaeonota)

Todd’s Brown Jacamar was described in 1943, originally as a distinct species; it is known only from a single specimen that was found in 1923 in Tonantins at the Rio Solimões in central Brazil.

The taxon was described as follows.:

“… Upperparts dark brown (bister), the pileum a little paler (sepia); wings and tail black with a faint steel blue gloss, the former with a narrow white band underneath, at the base of the remiges; throat, breast, sides, and under tail-coverts dark brown like the upperparts, leaving only the middle of the abdomen soiled white; feathers of the chin and upper throat with faint whitish shaft-stripes and rufescent tips; “iris milky white; feet blackish; bill black.” Wing, 71; tail, 53; exposed culmen, 43.” [1]

Todd’s Brown Jacamar is said to differ from the nominate race by its uniformly darker, more brownish, less rufescent coloration, by lacking any white above the eyes and by its “dark-colored throat with just the faintest possible suggestion of a pale submaxillary line on either side.” [1]

This form is not accepted by all ornithologists but may very well be valid, if so, it appears to be extinct now.
***

syn. Brachygalba phaeonota Todd

*********************

Depiction from: ‘P. L. Sclater: A monograph of the jacamars and puff-birds, or families Galbuliae and Bucconidae. London, published for the author by R. H. Porter 1882’

(public domain)

*********************

References:

[1] W. E. C. Todd: Studies in the Jacamars and Puff-birds. Annals of the Carnegie Museum 30: 1-18. 1943-1974

*********************

edited: 01.03.2024

Hyalella imbya Rodrigues & Bueno

Mbya-Guarani Amphipod (Hyalella imbya)

This species was described in 2012 based on specimens hat had been collected in 2002 on a wetland in the municipality of Roque Gonzales, in the state of Rio Grande do Sul, southern Brazil.

The animals reach sizes of 0,48 to 0,5 cm in length, they have a smooth body surface and lack eyes.

The type locality has severely altered in recent years: the area has drained to a tributary stream, the riparian vegetation has been removed and the area was flooded; during the latest field searches again the same area was completely dried out and of course not a single specimen of the amphipod species could be found.

The Mbya-Guarani Amphipod is now very likely extinct, however, there is a slight chance that the species survives somewhere in the underground. [1]

*********************

References:

[1] Stella Gomes Rodrigues; Alessandra Angélica de Pádua Bueno; Rodrigo Lopes Ferreira: The first hypothelminorheic Crustacea (Amphipoda, Dogielinotidae, Hyalella) from South America. ZooKeys 236: 65-80. 2021

*********************

female

male

Photos from: `Stella Gomes Rodrigues; Alessandra Angélica de Pádua Bueno; Rodrigo Lopes Ferreira: The first hypothelminorheic Crustacea (Amphipoda, Dogielinotidae, Hyalella) from South America. ZooKeys 236: 65-80. 2021`

https://creativecommons.org/licenses/by/3.0/

*********************

edited: 14.11.2021

Mecistogaster pronoti Sjöstedt

Atlantic Helicopter Damselfly (Mecistogaster pronoti)

The Atlantic Helicopter Damselfly was described in 1918, it is still known only from the type specimen, a female, that was discovered in the pristine Mata Atlântica, the Atlantic Forest somewhere in the state of Espirito Santo, Brazil.

The species reaches a length of about 6 cm, its head is black except for the labium which is yellow, the prothorax is mainly black with some pale yellow markings, the thorax itself is blackish brown in front and yellowish further back, the upperside of the abdomen is blackish brown with a blue gloss, the underside is yellowish. The legs are black and yellow. [1]

***

The type locality is now completely deforested, it is long lost and so is the Atlantic Helicopter Damselfly.

*********************

References:

[1] Yngve Sjörsted: Wissenschaftliche Ergebnisse der schwedischen entomologischen Reise des Herrn Dr. A. Roman in Amazonas 1914-1915. Arkiv för Zoologi 2(16): 1-54. 1918

*********************

edited: 12.01.2019

Phrynomedusa fimbriata Miranda-Ribeiro

Spiny-knee Leaf Frog (Phrynomedusa fimbriata)

The Spiny-knee Leaf Frog was described in 1923, it is known exclusively from the type specimen, a female that apparently was collected in 1898 somewhere in the Paranapiacaba District in the state of São Paulo, Brazil.

This single specimen reaches a size of 4,6 cm and is now in very bad condition with completely faded colors, it is said to have been pale blue dorsally and reddish yellow on the ventral side. [1]

***

Two additional species within this genus are also known exclusively from their type series, thus, the Spiny-knee Leaf Frog might in fact not be the only extinct species in this genus. [1]

********************

References:

[1] Délio Baêta; Luís Olímpio Menta Giasson; José P. Pombal; Célio Fernando Baptista Haddad: Review of the rare genus Phrynomedusa Miranda-Ribeiro, 1923 (Anura: Phyllomedusidae) with description of a new species. Herpetological Monographs 30: 49-78. 2016

********************

edited: 30.10.2020

Cichlocolaptes mazarbarnetti Mazar Barnett & Buzzetti

Cryptic Treehunter (Cichlocolaptes mazarbarnetti)

The Cryptic Treehunter is an enigmatic species that is currently included in this genus following thorough morphometric analyses, however, it differs strikingly from the other two species in this genus and superficially resembles the Alagoas Foliage-Gleaner (Phylidor novaesi Teixeira & Gonzaga) with which it occurred sympatrically.

***

The Cryptic Treehunter was restricted to two localities in the states of Alagoas and Pernambuco, Brazil, where it inhabited the last surviving remnants of the former rainforest.

The species reached a size of about 21 cm. 

The Cryptic Treehunter was described in 2014, just seven years after it was last seen, the species is now considered most likely extinct.

********************

edited: 01.09.2019

Biotocus turbinatus (Pfeiffer)

Turban Snail (Biotocus turbinatus)

This species was described in 1870, it is known from the states of Alagoas and Bahia, Brazil; it is considered extinct in the IUCN Red List without further explanation.

***

Despite the species being believed to be extinct, there actually exist specimens in the Muséum national d’Histoire naturelle in Paris, France that apparently were collected alive in 1998 “under humid tree trunks in Pedra Talhada“, long after the assumed extinction date. 

Yet, the species was not found during the most recent searches in 2015. [1]

********************

References:

[1] Rodrigo B. Salvador; Laurent Charles; Luiz R. L. Simone; Philippe Maestrati: Presumed extinct land snail Megalobulimus cardosoi found again in Pedra Talhada Biological Reserve, north-east Brasil. Tentacle 26: 13-14. 2018

********************

Photo from: ‘Abraham S. H. Breure; Jonathan D. Ablett: Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London. ZooKeys 182: 1-70. 2012’

(under creative commons license (3.0))
http://creativecommons.org/licenses/by/3.0

********************

edited: 30.10.2020

Naesiotus arnaldoi (Lanzieri & Rezende)

Arnaldo’s Naesiotus Snail (Naesiotus arnaldoi)

This species was described in 1971; it was endemic to the Ilha da Trindade offshore Brazil; it is apparently known from over 300 specimens.

The shells reach heights of about 0,95 cm.

The species disappeared sometimes during the 1970s due to the destruction of most of the native vegetation by introduced goats. [1]

*********************

References:

[1] Rodrigo B. Salvador; Carlo M. Cunha; Luiz Ricardo L. Simone: Taxonomic revision of the orthalicid land snails (Pulmonata: Stylommatophora) from Trindade Island, Brazil. Journal of Natural History 47(13-14): 949-961. 2013

*********************

edited: 02.05.2022

Bulimulus brunoi (Ihering)

Bruno’s Bulimulus Snail (Bulimulus brunoi)

Bruno’s Bulimulus Snail was described in 1917; it was endemic to the Ilha da Trindade offshore Brazil.

Only the shell of B. brunoi is known; unfortunately, no complete animal has so far been recovered.” [1]

The species disappeared due to the more or less complete destruction of the island’s native vegetation by introduced feral goats. [1]

*********************

References:

[1] Rodrigo B. Salvador; Carlo M. Cunha; Luiz Ricardo L. Simone: Taxonomic revision of the orthalicid land snails (Pulmonata: Stylommatophora) from Trindade Island, Brazil. Journal of Natural History 47(13-14): 949-961. 2013

*********************

edited: 02.05.2022

Desmodus draculae Morgan et al.

Giant Vampire Bat (Desmodus draculae)  

The Giant Vampire Bat was described in 1988 based on bones that were recovered from deposits of a cave in the state of Monagas, northern Venezuela. Further remains were found in Argentina, Belize, Bolivia, Brazil, Ecuador, and Mexico.  

The exact age of these bones cannot be determined, they may be of late Pleistocene or early Holocene age, some scientists even think that this species may still exist. [1]  

***

The Giant Vampire Bat wasn’t a real giant, in fact it was only 30% larger than its next living relative, the Common Vampire Bat (Desmodus rotundus Geoffroy) (see photo).  

*********************  

References:  

[1] G. S. Morgan; O. J. Linares; C. E. Ray: New species of fossil vampire bats (Mammalia, Chiroptera, Desmodontidae) from Florida and Venezuela”. Proceedings of the Biological Society of Washington. 101(4): 912–928. 1988  

*********************    

Common Vampire Bat (Desmodus rotundus Geoffroy)  

Photo: Uwe Schmidt 

(under creative commons license (4.0)) 
http://creativecommons.org/licenses/by-sa/4.0

*********************  

edited: 23.03.2018

Hylocharis pyropygia Salvin & Godman

Flame-rumped Sapphire (Hylocharis pyropygia)  

The enigmatic Flame-rumped Sapphire was described in 1881, it is thought to originate from Brazil, however, according to the original description it doesn’t.:

This is also one of Mr. Whitely’s recent discoveries, he having found it in company with a number of well-known Ecuador species of Humming- and other birds; so that it is reasonable to suppose it came from that country.” [1]

The Flame-rumped Sapphire might well be an now extinct species, however, it is now widely believed to be a hybrid of two other hummingbird species, the Glittering-bellied Emerald (Chlorostilbon lucidus (Shaw)) and the White-chinned Sapphire (Hylocharis cyanus Vieillot); I have included it here for the sake of completeness.

*********************  

References:  

[1] Osbert Salvin; F. D. Godman: On some new and little-known species of Trochilidae. The Ibis 4(5):  595-597. 1881

*********************

Depiction from: ‘Osbert Salvin; F. D. Godman: On some new and little-known species of Trochilidae. The Ibis 4(5):  595-597. 1881’

(public domain)

*********************  

edited: 03.11.2020

Allantoma kuhlmannii (Ducke) S. A. Mori, Ya Y. Huang & Prance

Kuhlmann’s Cariniana (Allantoma kuhlmannii)

Kuhlmann’s Cariniana is a savannah tree that is known only from the type material which had been collected at a place named Campos dos Urupa’s somewhere in Brazil.

The species has never been found since and is believed to be possibly extinct.

***

syn. Cariniana kuhlmannii Ducke

*********************

edited: 26.08.2022

Megadytes ducalis Sharp

Giant Diving Beetle (Megadytes ducalis)

The Giant Diving Beetle, described in 1882, was originally known only from a single specimen, which was collected in 1880 (?) at an unknown location in Brazil.

The species was considered extinct.

***

However, another ten specimens were discovered in 2019 in different historical museum collections, including drawers with unsorted diving beetle accessions of the Muséum National d’Histoire Naturelle in Paris, France. These specimens were labeled as having been collected in what today is the municipality of Condeúba in the state of Bahia in northeastern Brazil. 

The species is still officially considered extinct, but searches with the intention to rediscover the species are currently underway. [1]

*********************

References:

[1] Lars Hendrich; Michael Manuel; Michael Balke: The return of the Duke – locality data for Megadytes ducalis Sharp, 1882, the world’s largest diving beetle, with notes on related species (Coleoptera: Dytiscidae). Zootaxa 4586: 517-535. 2019

*********************

edited: 29.04.2021

Wingegyps cartellei Alvarenga & Olson

Brazilian Condor (Wingegyps cartellei)

This species was described in 2004 based on fossil remains that can be dated to late Pleistocene or early Holocene age. [1]

*********************

References:

[1] Herculano M. F. Alvarenga; Storrs L. Olson: A new genus of tiny condor from the Pleistocene of Brazil (Aves: Vulturidae). Proceedings of the Biological Society of Washington 117(1): 1-9. 2004

*********************

edited: 26.04.2021

Orobrassolis latusoris Penz & Simonsen

Parana Owl Butterfly (Orobrassolis latusoris)  

This species was described in 2011, it is known only from two males that had been collected in 1919 in the state of Paraná, Brazil, and which are now deposited in the Natural History Museum, London.  

The Parana Owl Butterfly reaches a wingspan of 7 cm, it is quite similar to the Ornamented Owl Butterfly (Orobrassolis ornamentalis (Stichel)) (see photo) which again is the only other species in the genus. It differs by the more robust, darker brown dorsal bands on its hindwings, and by subtle differences in male genitalic structures.  

The female is unknown. [1]  

*********************  

References:  

[1] C. M. Penz; T. J. Simonsen; P. J. Devries: A new Orobrassolis butterfly (Nymphalidae, Brassolini): a casualty of habitat destruction? Zootaxa 2740: 35–43. 2011  

*********************    

Ornamented Owl Butterfly (Orobrassolis ornamentalis)

Photo from: ‘Carla Maria Penz; Neda Mohammadi: Wing pattern diversity in Brassolini butterflies (Nymphalidae, Satyrinae). Biota Neotropica 13(3): 154-180. 2013’  

(under creative commons license (3.0)) 
http://creativecommons.org/licenses/by-nc/3.0/deed.en

*********************

edited: 02.09.2019

Calyptura cristata (Vieillot)

Kinglet Calyptura (Calyptura cristata)

The Kinglet Calyptura was described in 1818, it was originally thought to have been a member of the cotinga family (Cotingidae) but is now assigned to the tyrant flycatcher family (Tyrannidae).

The species was endemic to the Atlantic forest of southeastern Brazil, a region that now is almost completely deforested.

***

The Kinglet Calyptura was thought to have gone extinct since its description but was rediscovered during the 1970s.

The species was last seen in October 1996 in the Serra dos Órgãos National Park in the state of Rio de Janeiro, it may just be surviving undiscovered because of its very small size but it more likely is now completely extinct.

********************

Depiction from: ‘ Jean-Emmanuel-Marie Le Maout; Louis Couailhac; Pierre Bernard: Le Jardin des Plantes 1842-76’

(public domain)

********************

edited: 30.10.2020

Holoaden bradei Lutz

Itatiaia Highland Frog (Holoaden bradei)

The Itatiaia Highland Frog, described in 1958, has always been restricted to a small area on the Itatiaia Mountains in southeastern Brazil.

The species reaches a length of about 3,7 cm; it is generally olive-brown with a lighter-colored belly, it has short limbs and yellowish fingertips.

Only very little is known about this species’ biology, however, it is known that it lays its eggs under mulch and decaying plant material; the offspring bypasses the larval stage and hatches as complete miniature frogs.

The Itatiaia Highland Frog is thought to be very likely extinct (not extinct in the wild as Wikipedia states).

*********************

edited: 17.05.2022

Campomanesia lundiana (Kiaerskou) Mattos

Rio de Janeiro Myrtle (Campomanesia lundiana)

This species was restricted to the Atlantic Forest in southeastern Brazil, it is known only from the type material which was collected in 1825.

The species was never found again and is considered extinct.

***

The photo below shows an unspecified congeneric species that was photographed in the remains of the Atlantic forest in the state Rio de Janeiro, Brazil.

********************

unspecified Myrtle species (Campomanesia sp.)

Photo: Diego Monsores
https://www.inaturalist.org/people/monsores_diego
https://creativecommons.org/licenses/by-nc/4.0/

********************

edited: 05.02.2024

Noronhomys vespuccii Carleton & Olson

Fernando de Noronha Rat (Noronhomys vespuccii

When Amerigo Vespucci, an Italian merchant, explorer, and navigator that lived from 1451 to 1512 and

from whose name the term “America” is derived, set foot on the island of Fernando de Noronha in 1503, he reported of: “marine and land birds without number” and also “very large rats.” [1]

This rat species had not been properly identified until subfossil remains were found abundantly in the 1970s.:

The most frequently encountered fossils were those of a large rodent of the family Cricetidae, very different from the recent remains of the introduced rats (Rattus), which were also encountered on the dunes. This cricetid is almost certainly the rat mentioned by Vespucci. It is a new species, and possibly a new genus in the subfamily Sigmodontinae.” [1]

The species was finally described in 1999; it very likely died out very soon after the discovery of the island accompanied by the accidental introduction of rats. [2]

*********************

References:

[1] S. L. Olson: Natural history of vertebrates on the Brazilian islands of the mid South Atlantic. National Geographic Society Research Reports 13: 481-492. 1981
[2] Michael D. Carleton; Storrs L. Olson: Amerigo Vespucci and the rat of Fernando de Noronha: a new genus and species of Rodentia (Muridae, Sigmodontinae) from a volcanic island off Brazil’s continental shelf. American Museum Novitates 3256: 1-59. 1999

*********************

edited: 03.05.2022

Digerus gibberulus (Burrow)

Humpback Snail (Digerus gibberulus)

This species, described in 1815, is endemic to Brazil; it is now considered extinct, however, the reasons for this assumption appear to be unknown.

********************

Depiction from: ‘ Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 14: Oriental Bulimoid Helicidae. Odontostominae. Cerionidae. 1901-1902’  

(public domain)

********************

edited: 30.10.2020

Catonyx cuvieri Lund

Cuvier’s Ground Sloth (Catonyx cuvieri)

This species was described in 1839 on the basis of fossil remains that were dated to an Late Pleistocene age.

The species survived into the early Holocene era.

*********************

References:

[1] Andrea Corona; Daniel Perea; H. Gregory McDonald: Catonyx cuvieri (Xenarthra, Mylodontidae, Scelidotheriinae) from the late Pleistocene of Uruguay, with comments regarding the systematics of the subfamily. Journal of Vertebrate Paleontology 33(5): 1214-1225. 2013

*********************

edited: 13.08.2022

Chrysophyllum januariense Eichler

Laranjeiras Star Apple (Chrysophyllum januariense)

This species was described in 1870, it was endemic to its type locality, the Laranjeiras Rainforest, a part of the coastal rainforests along the coast of the state of Rio de Janeiro, Brazil.

The species has never been found since and is probably extinct.

********************

edited: 14.08.2022

Fluminagrion taxaense (Santos)

Rio de Janeiro Damselfly (Fluminagrion taxaense)  

The Rio de Janeiro Damselfly is known only from its type locality, which is now obviously a part of a urban park within the city of Rio de Janeiro in the same-named state of Rio de Janeiro in Brazil.  

The species was described in 1965, since then, however, it was never recorded again and is considered most probably extinct.  

***

The species was formerly doubtfully assigned to the genus Acanthagrion but is now placed in its own genus. [1]  

*********************  

References:  

[1] Danielle Anjos-Santos; Federico Lozano; Jnira Martins Costa: Fluminagrion gen. nov. for Acanthagrion taxaense Santos, 1965, from Brazil (Odonata: Coenagrionidae). International Journal of Odonatology 16(2): 145-155. 2013  

*********************  

edited: 13.01.2019

Monodelphis unistriata (Wagner)

One-striped Short-tailed Opossum (Monodelphis unistriata)

This species was originally described in 1842; it is still known only from two specimens, one from Argentina and one from Brazil.

The One-striped Short-tailed Opossum reached a length of about 20 cm (including the tail).

Nothing is known about its biology and it is thought to be possibly extinct.

*********************

References:

[1] Ronald H. Pine; David A. Flores; Kurt Bauer: The second specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3640(3): 425-441. 2013

*********************

Photo from: ‘Ronald H. Pine; David A. Flores; Kurt Bauer: The second specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3640(3): 425-441. 2013’

https://creativecommons.org/licenses/by/3.0/

*********************

edited: 08.05.2022

Myrmotherula fluminensis Gonzaga

Rio de Janeiro Antwren (Myrmotherula fluminensis)  

This enigmatic species of bird was described in 1988 on the basis of a single individual, which was caught during ornithological field studies in an isolated and intensely disturbed woodlot in the Magé District in the center of the Brazilian state of Rio de Janeiro.  

The species may possibly exist in the nearby Guapi Açu Ecological Reserve, since in the 1990s some birds were seen here, that could turn out to be of this species – these sightings, however, remain unconfirmed.  Since the region is now lacking most intact wooded areas, the survival of this species is questionable.  

***

The Rio de Janeiro Antwren may in fact not even be a distinct species but may be a local variant of the Silvery-flanked Antwren (Myrmotherula (axillaris ssp.) luctuosa Pelzeln) or a hybrid of this and the Unicolored Antwren (Myrmotherula unicolor (Ménétriés)) (see photo).

*********************

Unicolored Antwren (Myrmotherula unicolor)

Photo: Dario Sanches

(under creative commons license (2.0))
http://creativecommons.org/licenses/by-sa/2.0

*********************

edited: 31.08.2019

Vriesea rectifolia Rauh

Erect-leaved Vriesea (Vriesea rectifolia)

The Erect-leaved Vriesia was described in 1984, it was found near the town of Correntes in the state of Pernambuco, eastern Brazil.

The species morphologically resembles Lubbers’ Vriesea (Vriesea lubbersii (Baker) E. Morren) from  southeastern Brazil but differs from that species by its inflorescence with flowering branches and other characters. 

The species was never found again in its type locality but was kept in a botanical garden for a while, where it flowered and died without leaving descendants.

Thus, the Erect-leaved Vriesea is now considered extinct. [1]

*********************

References:

[1] Janaína Gomes-da-Silva; Andrea Ferreira da Costa: A taxonomic revision of Vriesia corcovadensis Group (Bromeliaceae: Tillandsioideae) with description of two new species. Systematic botany 36(2): 291-309. 2011

*********************

edited: 03.12.2018

Notholebias cruzi (W. J. E. M. Costa)

Cruz’s Pearlfish (Notholebias cruzi)  

This species was described in 1988, it was restricted to the coastal plains near Rio São João, Rio de Janeiro in southeast Brazil.  

Cruz’s Pearlfish reached a length of only about 3 to 4 cm.  

***

The genus Notholebias contains at least four species, one of which is already extinct, the remaining three are close to extinction.  

*********************  

References:  

[1] Wilson J. E. M. Costa; Pedro F. Amorim: Delimitation of cryptic species of Notholebias, a genus of seasonal miniature killifishes threatened with extinction from the Atlantic Forest of south-eastern Brazil (Cyprinodontiformes: Rivulidae). Ichthyological Exploration of Freshwaters 24(1): 63-72. 2013  

*********************  

edited: 31.10.2017