Tropidoptera

Tropidoptera is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae. ^[2]

Tropidoptera
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Amastridae
Genus:	Tropidoptera Ancey, 1889[1]
Type species
Endodonta (Pterodiscus) wesleyi Sykes, 1896
Synonyms
Amastra (Helicamastra) Pilsbry & Vanatta, 1905 junior subjective synonym Endodonta (Pterodiscus) Pilsbry, 1893 junior subjective synonym Pterodiscus Pilsbry, 1893 junior subjective synonym

Description

(Described as Endodonta (Pterodiscus)) The shell is umbilicated, depressed, thin, or fragile, with a translucent horny-brown coloration.

The whorls are finely and densely striated, with the body whorl sharply keeled at the periphery and distinctly carinated around the umbilicus. The aperture is oblique and toothless, with a thin, simple lip. ^[3]

Distribution

It is endemic to the Hawaiian Islands.

Species

Species within the genus Tropidotera include:

• Tropidoptera alata (L. Pfeiffer, 1856)
• Tropidoptera discus (Pilsbry & Vanatta, 1905)
• Tropidoptera heliciformis (Ancey, 1890)
• Tropidoptera rex (Sykes, 1904)
• Tropidoptera wesleyi (Sykes, 1896)