Tag Archives: Urocoptidae

Anoma tricolor (Pfeiffer)

Tricolored Anoma Snail (Anoma tricolor)

The Tricolored Anoma Snail was desribed in 1847, it apperas toe have been restricted to a place named Moncrieff Gully (named Fern Gully today) in the St. Ann Parish at the north coast of Jamaica. [1]

The shells reach sizes of about 1,8 cm in heigth, they have up to 15 whorls and are glossy whitish and bear some grayish stripes.

The species is apparently extinct now.

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References:

[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904
[2] Gary Rosenberg; Igor Muratov: Status Report on the Terrestrial Mollusca of Jamaica. Proceedings of the Academy of Natural Sciences of Philadelphia 155: 117-161. 2006

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Depiction from: ‘Louis Pfeiffer: Die Gattung Cylindrella Pfr.: in Abbildungen nach der Natur. Nürnberg: Verlag von Bauer und Raspe, Julius Merz 1862’

(not in copyright)

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edited: 22.09.2020

Anoma dohrniana (Pfeiffer)

Dohrn’s Anoma Snail (Anoma dohrniana)  

Dohrn’s Anoma Snail was described in 1871.

The shells reach sizes of about 1,75 cm in length; they are subperforate, subfusiform, slender, smooth, glossy coffee-colored and bear a white band at their suture. [1]

The species was not found during recent searches and might well be extinct. [2]

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References:  

[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904
[2] Gary Rosenberg; Igor Muratov: Status Report on the Terrestrial Mollusca of Jamaica. Proceedings of the Academy of Natural Sciences of Philadelphia 155: 117-161. 2006

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904’

(public domain)

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edited: 24.10.2020

Anoma radiata (Chitty)

Radiate Anoma Snail (Anoma radiata)

The Radiate Anoma Snail was described in 1853, originally as a subspecies of another species, Mauger’s Anoma Snail (Anoma maugeri Wood); it occurred near 
Bog Walk, a small town in the Saint Catherine Parish in southeast Jamaica.

The species was well distinguishable from related species by its fusiform shape, the finely plicate surface, the strong basal angle, the absense of bands or streaks, and the small, oblique, angular aperture. [1]

The Radiate Anoma Snail is now likely extinct.

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References:  

[1] Gary Rosenberg; Igor Muratov: Status Report on the Terrestrial Mollusca of Jamaica. Proceedings of the Academy of Natural Sciences of Philadelphia 155: 117-161. 2006

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904’

(public domain)

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edited: 07.10.2020

Anoma gracilis (C. B. Adams)

Gracile Anoma Snail (Anoma gracilis 

The Gracile Anoma Snail was described in 1851, apparently based on empty shells; it seems that the species was already extinct at that time.

The species is endemic to the island of Jamaica, an exact locality, however, seems not to be known.

The shells are quite slender; they are pearl-white with a pure white keel and lip, they are coarsely striated at the end of the last whorl and bear excessively minute stirae otherwise. [1]

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References:  

[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904

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Depiction from: ‘Louis Pfeiffer: Die Gattung Cylindrella Pfr.: in Abbildungen nach der Natur. Nürnberg: Verlag von Bauer und Raspe, Julius Merz 1862’

(not in copyright)

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edited: 21.09.2020

Anoma solida (C. B. Adams)

Solid Anoma Snail (Anoma solida)  

The Solid Anoma Snail was described in 1851, it was apparently restricted to a small area in the vicinity of the Peace River in the eastern Manchester Parish in southern Jamaica.

The shells are about 1,95 cm heigh and about 0,67 in diameter.

The species was not found during recent surveys and is possibly extinct.

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References:  

[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904’

(public domain)

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edited: 22.09.2020

Anoma pulla (Chitty)

Maroon Town Anoma Snail (Anoma pulla)  

This species was described in 1853, it was for some time treated as a variety of another species, the Beautiful Anoma Snail (Anoma pulchella Chitty).

The species was found in the vicinity of Maroon Town, a settlement in the St. James Parish in northwestern Jamaica.

… from the description.:

Shell small, rather slender, dark red-brown, almost black at the back of peritreme. Lip cream-white, and so also around the back of it, and a white line running along the top (below the suture) of one-half of the last whorl, narrow and gradually dimishing. I have but three specimens before me, not the best I imagine, and, though the brown body-color is good, each seems covered with a white substance which scales off on application of a steel instrument, as though the substance were the natural exterior.” [1]

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References:  

[1] Gary Rosenberg; Igor Muratov: Status Report on the Terrestrial Mollusca of Jamaica. Proceedings of the Academy of Natural Sciences of Philadelphia 155: 117-161. 2006

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 16: Urocoptidae, Achatinidae. 1904’

(public domain)

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edited: 24.10.2020

Anoma integra (C. B. Adams)

Integer Anoma Snail (Anoma integra)  

The Integer Anoma Snail was described in 1851 by Charles Baker Adams; it is obviously constantly getting misidentified with a form from the island of Cuba, which apparently was described under exactly the same name by Carl Georg Ludwig Pfeiffer in 1856.

It is possible that these two are in fact one and the same and that it indeed originates from the island of Cuba – I was not able so far to find any further information about this case.

***

The depiction below apparently shows the form from Cuba.

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References:  

[1] Gary Rosenberg; Igor Muratov: Status Report on the Terrestrial Mollusca of Jamaica. Proceedings of the Academy of Natural Sciences of Philadelphia 155: 117-161. 2006

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Depiction from: ‘Louis Pfeiffer: Die Gattung Cylindrella Pfr.: in Abbildungen nach der Natur. Nürnberg: Verlag von Bauer und Raspe, Julius Merz 1862’

(not in copyright)

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edited: 24.10.2020

Cylindrella pilocerei Pfeiffer

Cactus Spindle Snail (Cylindrella pilocerei)

The enigmatic Cactus Spindle Snail was described in1841; it is known from somewhere in Mexico (Guanajuato and Hidalgo?) and apparently was found hiding under the conspicuously elongated, hair-like modified spines of the so-called Old Man Cactus (Cephalocereus senilis (Haw.) Pfeiff.).:

C. pilocerei lebt auf Cactus, namentlich Pilocereus senilis.” [1]

Translation:

C. pilocerei lives on Cactus, namely Pilocereus senilis.

The taxonomic status of this species is somewhat questionable and, if it ever existed, it is now possibly extinct. [2]

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References:

[1] Johann Christian Albers: Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet. Zweite Ausgabe nach dem hinterlassenen Manuskript besorgt von Eduard von Martens. Leipzig: Wilhelm Engelmann 1860
[2] Robert H. Cowie; Claire Régnier; Benoît Fontaine; Philippe Bouchet. Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41. 2017

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Photo: Naturalis Biodiversity Center
https://www.naturalis.nl 

(no copyright)

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edited: 17.05.2022