Cystiscinae
Appearance
Cystiscinae | |
---|---|
Drawing of a typical animal in this subfamily | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Neogastropoda |
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:[1]
- †Marginocystiscus Landau, da Silva & Heitz, 2016
- Crithe Gould, 1860
- Cystiscus Stimpson, 1865
- Extra Jousseaume, 1894
- Inbiocystiscus Ortea & Espinosa, 2001
- Intelcystiscus Ortea & Espinosa, 2001
- Ticocystiscus Espinosa & Ortea, 2002
- Ticofurcilla Espinosa & Ortea, 2002
Comparative shell structure of three genera
-
Cystiscus -
Crithe -
Extra
References
- ^ MolluscaBase (2018). "Cystiscinae Stimpson, 1865". WoRMS. World Register of Marine Species. Retrieved 4 January 2019.
- Espinosa, J. and J. Ortea 2002. Nuevas especies de margineliformes de Cuba, Bahamas y el Mar Caribe de Costa Rica Avicennia 15:101-128.
- Ortea, J. y J. Espinosa 2001. Intelcystiscus e Inbiocystiscus (Mollusca: Neogastrópoda: Cystiscidae) dos nuevos géneros del Atlántico occidental tropical. Avicennia 14 107-114.