Radiolucina
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Ordo: Veneroida
Familia: Lucinidae
Name
Radiolucina Britton, 1972 – Wikispecies link – Pensoft Profile
- Radiolucina Britton, 1972. Type species (original designation): Phacoides (Bellucina) amiantus Dall, 1901.
Description
Shell shape subovate; maximum length: 9.0 mm, maximum height: 8.0 mm; with an average of 13 heavy radial ribs, overlain by thin commarginal lamellae that continue through interspaces, producing a reticulate pattern; posterior end thickened, posterior dorsal area often with low spines; pallial line often discontinuous broken into large and small segments; right valve hinge with two cardinal teeth, left valve hinge with one wide cardinal tooth, one anterior lateral tooth, one posterior lateral tooth.
Comparisons
Parvilucina Dall, 1901 (type species: Lucina tenuisculpta P.P. Carpenter, 1864) attains a larger size and has fine radial ribs, and a short, broad anterior adductor muscle scars compared to Radiolucina, which has strong radial ribs and a long, narrow anterior adductor muscle scar.
Pleurolucina Dall, 1901 (type species: Lucina leucocyma Dall, 1886) has heavy commarginal lamellae with few broad, weak radial ribs compared to Radiolucina. It is similar to Radiolucina in that they both have a long, narrow anterior adductor muscle scar.
Liralucina Glover & Taylor, 2007 (type species: Phacoides sperabilis Hedley, 1909) has an average of 35 flat, radial ribs compared to Radiolucina,which has average 13 strong, radial ribs.
There is evidence (Coan and Valentich-Scott 2012[1]) that Radiolucina dates back to the Miocene.
Literature
Britton (1972)[2], Hickman (1994)[3], Taylor and Glover (2000)[4], Glover and Taylor (2007)[5], Taylor and Glover (2009)[6], Coan and Valentich-Scott (2012)[1].
Taxon Treatment
- Garfinkle, E; 2012: A review of North American Recent Radiolucina (Bivalvia, Lucinidae) with the description of a new species ZooKeys, 205: 19-31. doi
Other References
- ↑ 1.0 1.1 Coan E, Valentich-Scott P (2012) Bivalve Seashells of Tropical West America, Marine Bivalve Mollusks from Baja California to Northern Perú. Santa Barbara Museum of Natural History Monographs 6, Studies in Biodiversity 4, Santa Barbara, 1258 pp.
- ↑ Britton J (1972) Two New Species and a New Subgenus of Lucinidae (Mollusca: Bivalvia), with Notes on Certain Aspects of Lucinid Phylogeny. Smithsonian Contributions to Zoology 129: 1-19. doi: 10.5479/si.00810282.129
- ↑ Hickman C (1994) The Genus Parvilucina in the Eastern Pacific: Making Evolutionary Sense of Chemosymbiotic Species Complex. The Veliger 37 (1): 43-61.
- ↑ Taylor J, Glover E (2000) Functional anatomy, chemosymbiosis and evolution of the Lucinidae. Geological Society of London, Special Publications 177, London, 207–225.
- ↑ Glover E, Taylor J (2007) Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou. Zoosystema 29: 109-181.
- ↑ Taylor J, Glover E (2009) New lucinid bivalves from hydrocarbon seeps of the Western Atlantic (Mollusca: Bivalvia: Lucinidae). Steenstrupia 30 (2): 111-124.
