Amphidromus crassus

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

Amphidromus crassus
Shell of Amphidromus crassus (lectotype at the Natural History Museum, London)
Scientific classification
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 crassa Fulton, 1899 alternative representation Amphidromus contrarius crassa Fulton, 1899 Amphidromus contrarius var. crassa Fulton, 1899

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.