Trigonulina is a genus of small carnivorous bivalves in the family Verticordiidae.[1][2] It was first named by Alcide d'Orbigny with the type taxon T. ornata in 1853, though T. novemcostata was named first originally as Hippagus novemcostatus in 1850 which is now unaccepted.[3] Trigonulina shells are known to be extremely small, ranging from about 1-3.6 millimeters long.[2] They live at depths of 18-850 meters below the ocean's surface and burrow under sand to feed on microscopic crustaceans using adapted inhalant siphons.[2] T. ornata lives in the western Atlantic Ocean[2] while T. novemcostata is native to the South China Sea.[3]

Trigonulina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Family: Verticordiidae
Genus: Trigonulina
d'Orbigny, 1853
Synonyms[1]
  • Verticordia (Trigonulina) d'Orbigny, 1853

Species

edit

References

edit
  1. ^ a b "Trigonulina". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.
  2. ^ a b c d Morton, Brian; Machado, Fabrizio Marcondes; Passos, Flávio Dias (2019-12-01). "The anatomy of the miniature predator Trigonulina ornata d'Orbigny, 1853 (Bivalvia: Anomalodesmata: Verticordiidae) from continental shelf waters off Brazil". Marine Biodiversity. 49 (6): 2901–2916. Bibcode:2019MarBd..49.2901M. doi:10.1007/s12526-019-01017-y. ISSN 1867-1624. S2CID 208020640.
  3. ^ a b c "Trigonulina novemcostata". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.
  4. ^ "Trigonulina ornata". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.