Cystiscidae | |
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Gibberula celerae | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Clade: | Caenogastropoda |
Clade: | Hypsogastropoda |
Clade: | Neogastropoda |
Family: | Cystiscidae Stimpson, 1865 [1] |
Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks.
The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; the spire is flat to immersed, or low to tall; the protoconch is paucispiral; the lip is thickened, smooth or denticulate; an external varix is present or absent; a siphonal notch is present or absent; a posterior notch is present or absent; the columella is multiplicate, internal whorls cystiscid or modified cystiscid type. Mantle cavity with monopectinate ctenidium and bipectinate osphradium. Proboscis pleurembolic; jaws absent; typical radular sac present.
The family was erected by William Stimpson for a single included species based on unusual features of the head and radula. Subsequent authors included this group in the family Marginellidae.
Coan (1965) [2] recognized this group as a subfamily, but he did not include such genera as Gibberula, Persicula, and Canalispira. Rule of priority of the ICZN require that the name Cystiscidae must be used, but this is unfortunate because the type specimen of the type species is lost, and that species is poorly known.
The family Cystiscidae consists of subfamilies (according to the Working Classification of the Gastropoda by Bouchet et al., 2005): [3]
Reference for inclusion of Granulinae in Cystiscidae: Bouchet, P.; Rocroi, J.-P.; Fryda, J.; Hausdorf, B.; Ponder, W.; Valdes, A.; Waren, A. 2005. Classification and Nomenclator of Gastropod Families. Malacologia: International Journal of Malacology. Hackenheim, Germany: ConchBooks.
Genera within the family Cystiscidae include:
Plesiocystiscinae
Abbreviations:
Comparisons of shells of the genera:
Volutoidea is a taxonomic superfamily of predatory sea snails, marine gastropod mollusks in the clade Neogastropoda.
Marginellidae, or the margin shells, are a taxonomic family of small, often colorful, sea snails, marine gastropod molluscs in the clade Neogastropoda.
Gibberula is a genus of minute sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae, previously placed in the family Marginellidae, the margin shells or marginellids.
Granulina is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Granulinidae.
Plesiocystiscus is a genus of minute predatory sea snails, marine gastropod mollusks or micromollusks in the family Cystiscidae.
Cystiscus is a taxonomic genus of minute sea snails, marine gastropod mollusks or micromollusks.
Persicula is a taxonomic genus of minute to small predatory sea snails, marine gastropod mollusks. It includes several species which are micromollusks.
Plesiocystiscinae is a subfamily of minute sea predatory sea snails, marine gastropod mollusks or micromollusks in the infraorder Neogastropoda.
Cystiscinae are a taxonomic subfamily of minute sea snails. These are marine gastropod mollusks or micromollusks in the family Cystiscidae, and the clade Neogastropoda.
Persiculinae is a taxonomic subfamily of minute to small predatory sea snails, marine gastropod mollusks. This subfamily includes several species which are micromollusks.
Intelcystiscus is a genus of minute sea snail, a marine gastropod mollusc or micromollusc in the family Cystiscidae.
Inbiocystiscus is a genus of minute sea snail, a marine gastropod mollusc in the family Cystiscidae.
Gibberula sierrai is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.
Gibberula ubitaensis is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.
Canalispira is a genus of very small sea snails, marine gastropod mollusks or micromollusks in the family Cystiscidae.
Cystiscus mancelli is a species of sea snail, a marine gastropod mollusk in the family Cystiscidae.
Canalispira gomezi is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.
Plesiocystiscus jardonae is a species of sea snail, a marine gastropod mollusk, in the family Cystiscidae.
Plesiocystiscus mariae is a species of sea snail, a marine gastropod mollusk, in the family Cystiscidae.
Granulinidae are a family of small to medium-large sea snails, marine gastropod mollusks in the clade Neogastropoda.
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