Amphidromus crassus

Amphidromus crassus
Shell of Amphidromus crassus (lectotype at the Natural History Museum, London)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Camaenidae
Genus:	Amphidromus
Species:	A. crassus
Binomial name
Amphidromus crassus Fulton, 1899
Synonyms
Amphidromus (Syndromus) contrarius crassaFulton, 1899 alternative representation Amphidromus contrarius crassaFulton, 1899 Amphidromus contrarius var. crassaFulton, 1899

Amphidromus crassus is a species of air-breathing tree snail, an arboreal gastropod mollusk in the family Camaenidae. ^[1]

Description

The length of this sinister shell attains 40.4 mm, its diameter 19.4 mm

(Original description) This is similar in shape to the typical form of Amphidromus contrarius (O.F. Müller, 1774), but is a much more solid shell. The columella is thick and round, not thin and expanded as in the type. Whilst the aperture is somewhat higher in proportion to the height of the shell, and the interrupted oblique colour- stripes of the type are absent on the body whorl of this species. ^[2]

Distribution

This species is endemic to Timor Island.

References

1. Amphidromus crassus Fulton, 1899 . 19 April 2025. Retrieved through: World Register of Marine Species .
2. Fulton, H.C. (1899). "A list of the species of land Mollusca collected by Mr. W. Doherty in the Malay Archipelago; with descriptions of some supposed new species and varieties". Proceedings of the Malacological Society of London. 3: 215. Retrieved 19 April 2025. This article incorporates text from this source, which is in the public domain .

External links

• Tryon, George W., (George Washington), - Baker, H. Burrington (Horace Burrington), - Cooke, C. Montague (Charles Montague), - Hyatt, Alpheus, - Pilsbry, Henry Augustus (1900). Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata (2 ed.). Philadelphia: published by the authors. p. 212. Retrieved 15 May 2025. This article incorporates text from this source, which is in the public domain .
• Sutcharit C., Ablett J., Tongkerd P., Naggs F. & Panha S. (2015). "Illustrated type catalogue of Amphidromus Albers, 1850 in the Natural History Museum, London, and descriptions of two new species". ZooKeys. 492: 65. Retrieved 19 April 2025.