Cystiscinae

Cystiscinae
Drawing of a typical animal in this subfamily
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily: Muricoidea
Family: Cystiscidae
Subfamily: Cystiscinae
Stimpson, 1865

Cystiscinae are a taxonomic subfamily of minute sea snails. These are marine gastropod mollusks or micromollusks in the family Cystiscidae, and the clade Neogastropoda.

Diagnosis

Shell minute to small, white; spire immersed to low; surface smooth or axially costate; lip thickened, smooth or denticulate; external varix absent; siphonal notch absent; posterior notch absent; columella multiplicate, with combined total of usually 2 to 8 plications plus parietal lirae; internal whorls cystiscid type. Animal mantle smooth, at least partially extending over external shell surface. Internal anatomy unknown.

Genera

Genera within the subfamily Cystiscinae are as follows:

Comparative shell structure of three genera

References

This article is issued from Wikipedia - version of the 11/28/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.