Genus Desmopterus Chun, 1899
Desmopterus is composed of three species; D. papilio is the type species.
It is a completely shell-less pteropod, very small in size and the swimming disc diameter is 0.5 cm. The wings are disc-shaped and transparent. The visceral mass forms an opaque appendix. There is no separate proboscis (Desmopterus genus).
[3 species]