Cystiscinae
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| Cystiscinae | |
|---|---|
 | |
| Drawing of a typical animal in this subfamily | |
| Scientific classification | |
| Kingdom: | Animalia |
| Subkingdom: | Eumetazoa |
| Superphylum: | Protostomia |
| 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:
- † Topaginella Laseron, 1857
- Cystiscus Stimpson, 1865
- Crithe Gould, 1860
- Extra Jousseaume, 1894
- Intelcystiscus Ortea & Espinosa, 2001
- Inbiocystiscus Ortea & Espinosa, 2001
- Ticocystiscus Espinosa & Ortea, 2002
Comparative shell structure of three genera
-
Cystiscus -
Crithe -
Extra
References
- 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.
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