Trabecula | |
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Apertural view of the shell of Trabecula laxa | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Heterobranchia |
Subcohort: | Panpulmonata |
Superfamily: | Pyramidelloidea |
Family: | Pyramidellidae |
Genus: | Trabecula Monterosato, 1884 [1] |
Type species | |
Trabecula jeffreysiana Monterosato, 1884 | |
Synonyms [2] | |
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Trabecula is a genus of very small sea snails, marine gastropod molluscs or micromolluscs in the family Pyramidellidae, the pyrams and their allies, and the subfamily Chrysallidinae, a large taxon of minute marine gastropods with an intorted protoconch. [2]
Dall & Bartsch (1904: 10) misinterpreted this genus and described it with “intercostal spaces crossed by equally spaced, raised spiral threads, sculpture reticulated”, despite that Monterosato (1884) wrote that there is no apparent spiral sculpture. This may explain why Dall & Bartsch (1909) described a new genus Salassiella with a type species extremely similar to that of Trabecula
The whorls of the teleoconch are rounded, and longitudinally lamellose. The aperture is semicircular, with an exterior rib. There is no apparent spiral sculpture. The apex is retrorse. The columella lacks a fold or tooth. [3]
Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromolluscs.
Odostomiinae, Odostomia snails and their allies, is a taxonomic subfamily of minute parasitic sea snails. These are marine heterobranch gastropod mollusks, or micromollusks, in the family Pyramidellidae.
Turbonillinae is a subfamily of mostly minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.
Chrysallidinae is a taxonomic group of very small sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Syrnolininae is a subfamily of minute parasitic sea snails, marine heterobranch gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.
Tiberia is a genus of minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies. Tiberia is the only genus in the tribe Tiberiini.
Cingulina is a genus of small sea snails, pyramidellid gastropod mollusks. in the family Pyramidellidae, the pyrams and their allies.
Oscilla is a genus of very small sea snails, minute marine gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Pyramidellidae.
Chrysallida is a speciose genus of minute sea snails, pyramidellid gastropod mollusks or micromollusks in the family Pyramidellidae within the tribe Chrysallidini.
Babella is a genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks in the family Pyramidellidae within the tribe Chrysallidini.
Menestho is a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks.
Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Evalea is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Megastomia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Pyrgiscus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Syrnola is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Tropaeas is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Turbonilla is a large genus of ectoparasitic sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Pyrgulina is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae.
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