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 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Family: | Verticordiidae |
| Genus: | Trigonulina d'Orbigny, 1853 |
| Synonyms[1] | |
| |
Species
edit- Trigonulina novemcostata (A. Adams & Reeve, 1850)[3]
- Trigonulina ornata (d'Orbigny, 1853)[4]
References
edit- ^ a b "Trigonulina". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.
- ^ 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.
- ^ a b c "Trigonulina novemcostata". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.
- ^ "Trigonulina ornata". WoRMS. World Register of Marine Species. Retrieved 20 January 2023.
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