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Trabecula (gastropod)

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Kingdom  Animalia
Clade  Heterobranchia
Clade  Panpulmonata
Scientific name  Trabecula
Rank  Genus
Phylum  Mollusca
Clade  Euthyneura
Superfamily  Pyramidelloidea
Higher classification  Pyramidellidae
Trabecula (gastropod) uploadwikimediaorgwikipediacommonsdd2Trabec
Similar  Pyramidellidae, Gastropods, Molluscs, Chrysallida

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.



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.


  • Trabecula abei (Nomura, 1938)
  • Trabecula jeffreysiana Monterosato, 1884
  • Trabecula kronenbergi (van Aartsen, Gittenberger & Goud, 2000)
  • Trabecula krumpermani (Jong & Coomans, 1988)
  • Trabecula laxa (Dall & Bartsch, 1909) (synonym : Odostomia (Salasiella) laxa Dall & Bartsch, 1909)
  • Trabecula tani (Saurin, 1959)
  • Trabecula tantilloides (Nomura, 1938)
  • Trabecula truncatelliformis (Hori & Fukuda, 1999)
  • Trabecula yositunei (Nomura, 1938)
  • Species brought into synonymy
  • Trabecula montforti (Corgan, 1972): synonym of Nesiodostomia montforti Corgan, 1972
  • Trabecula plicata (A. Adams, 1860): synonym of Pyrgulina plicata (A. Adams, 1860)
  • Trabecula punctigera (A. Adams, 1860): synonym of Linopyrga punctigera (A. Adams, 1860)
  • Trabecula tantilla (A. Adams, 1863): synonym of Linopyrga tantilla (A. Adams, 1863)
  • References

    Trabecula (gastropod) Wikipedia