Tag Archives: Endodonta

Endodonta lamellosa (Férussac)

Lamellar Disc Snail (Endodonta lamellosa)

The Lamellar Disc Snail was described in 1822, originally as coming from “Islands of the South Sea“, it was, however, endemic to Mt. Konahuanui, the highest peak of the Ko’olau Mountains on the island of O’ahu, Hawaiian Islands. 

***

The Lamellar Disc Snail is now, like most of its congeners, extinct. [2]

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

References:

[1] Henry A. Pilsbry; C. Montangue Cooke Jr.; Marie C. Neal: Land Snails from Hawaii, Christmas Island, and Samoa. Bishop Museum Bulletin 47: 1-49. 1928
[2] Norine W. Yeung; Kenneth A. Hayes: Biodiversity and extinction of Hawaiian land snails: how many are left now and what must we do to conserve them – a reply to. Integrative and Comparative Biology 58(6): 1157-1169. 2018

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

Depiction from: ‘H. A. Pilsbry; E. G. Vanatta: Hawaiian species of Endodonta and Opeas. Proceedings of the Academy of Natural Sciences of Philadelphia 57: 783-786. 1905’  

(not in copyright)

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

edited: 06.09.2019

Endodonta kamehameha Pilsbry & Vanatta

Kamehameha Disc Snail (Endodonta kamehameha)  

The Kamehameha Disc Snail was restricted to the Wailau Pali Valley, Mapulehu at the southern coast of eastern Moloka’i, Hawaiian Islands.  

The shells reached of this very large species a size of up to 0,73 cm in diameter. [1][2]  

***

The Kamehameha Disc Snail is now most certainly extinct. [3]  

*********************  

References:  

[1] H. A. Pilsbry; E. G. Vanatta: Hawaiian species of Endodonta and Opeas.  Proceedings of the Academy of Natural Sciences of Philadelphia 57: 783-786. 1905 
[2] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[3] Norine W. Yeung; Kenneth A. Hayes: Update on the status of the remaining Hawaiian land snail species Part 4: Punctidae and Endodontidae. 2016  

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

Depiction from: ‘H. A. Pilsbry; E. G. Vanatta: Hawaiian species of Endodonta and Opeas. Proceedings of the Academy of Natural Sciences of Philadelphia 57: 783-786. 1905’

(not in copyright)

*********************  

edited: 05.04.2018

Endodonta fricki (Pfeiffer)

Frick’s Disc Snail (Endodonta fricki)

Frick’s Disc Snail was described in 1858, it was apparently distributed over the whole Wai’anae Mountains on the island of O’ahu, Hawaiian Islands, some of the specimens included in here, however, are probably geographical subspecies or even distinct species. 

The shells of this species reached sizes of about 0,26 to 0,38 cm in heigth. [1]

***

Frick’s Disc Snail is now, like most of its congeners, extinct. [2]

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

References:

[1] Henry A. Pilsbry; C. Montangue Cooke Jr.; Marie C. Neal: Land Snails from Hawaii, Christmas Island, and Samoa. Bishop Museum Bulletin 47: 1-49. 1928
[2] Norine W. Yeung; Kenneth A. Hayes: Biodiversity and extinction of Hawaiian land snails: how many are left now and what must we do to conserve them – a reply to. Integrative and Comparative Biology 58(6): 1157-1169. 2018

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

Depiction from: ‘G. W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second Series: Pulmonata Vol. 3, Helicidae Vol. 1. 1887’

(public domain)

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

edited: 08.05.2019

Endodonta binaria (Pfeiffer)

Binary Disc Snail (Endodonta binaria)  

The Binary Disc Snail, which was described in 1856, was endemic to the island of Kaua’i, Hawaiian Islands.  The shells on average reached a size of 0,43 cm in diameter. [1]  

***

This species is now most likely extinct, like nearly all of its congeners. [2]  

*********************  

References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Norine W. Yeung; Kenneth A. Hayes: Update on the status of the remaining Hawaiian land snail species Part 4: Punctidae and Endodontidae. 2016  

*********************   

Depiction from: ‘G. W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second Series: Pulmonata Vol. 3, Helicidae Vol. 1. 1887’

(not in copyright)  

*********************  

edited: 23.03.2017

Endodonta laminata (Pease)

Laminated Disc Snail (Endodonta laminata)  

This species was described in 1866, it was restricted to an area that reached from Kahiliwai to Haena on the northern coast of Kaua’i, Hawaiian Islands.  

The Laminated Disc Snail was a quite large species, its shells reached an average size of about 0,6 to 0,65 cm in diameter. [1]  

***

The species was not seen since the beginning of the 20th century and is very certainly extinct. [2]  

*********************  

References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Norine W. Yeung; Kenneth A. Hayes: Update on the status of the remaining Hawaiian land snail species Part 4: Punctidae and Endodontidae. 2016  

*********************  

edited: 23.03.2017

Endodonta marsupialis Pilsbry & Vanatta

Marsupial Disc Snail (Endodonta marsupialis)

The Marsupial Disc Snail was described in 1905, it was already restricted to a tiny population back then, living in a small area on the western slope of Mt. Tantalus on the island of O’ahu, Hawaiian Islands.

The shells of this species reached sizes of about 0,36 to 0,38 cm in height and up to 0,82 cm in diameter. [1]

***

The Marsupial Disc Snail is now, like most of its congeners, extinct. [2]

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

References:

[1] Henry A. Pilsbry; C. Montangue Cooke Jr.; Marie C. Neal: Land Snails from Hawaii, Christmas Island, and Samoa. Bishop Museum Bulletin 47: 1-49. 1928
[2] Norine W. Yeung; Kenneth A. Hayes: Biodiversity and extinction of Hawaiian land snails: how many are left now and what must we do to conserve them – a reply to. Integrative and Comparative Biology 58(6): 1157-1169. 2018

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

Depiction from: ‘H. A. Pilsbry; E. G. Vanatta: Hawaiian species of Endodonta and Opeas. Proceedings of the Academy of Natural Sciences of Philadelphia 57: 783-786. 1905’

(not in copyright)

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

edited: 08.05.2019