Trabecula (gastropod)

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Trabecula
Trabecula laxa 001.png
Apertural view of the shell of Trabecula laxa
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subcohort: Panpulmonata
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Genus: Trabecula
Monterosato, 1884 [1]
Type species
Trabecula jeffreysiana
Monterosato, 1884
Synonyms[2]
  • Chrysallida (Trabecula) Monterosato, 1884
  • Salassiella Dall & Bartsch, 1909

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]

Taxonomy[]

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

General description[]

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]

Species[]

Species brought into synonymy
  • Trabecula montforti (Corgan, 1972): synonym of Nesiodostomia montforti Corgan, 1972
  • Trabecula plicata (A. Adams, 1860): synonym of (A. Adams, 1860)
  • Trabecula punctigera (A. Adams, 1860): synonym of (A. Adams, 1860)
  • Trabecula tantilla (A. Adams, 1863): synonym of Linopyrga tantilla (A. Adams, 1863)

References[]


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