From Wikipedia, the free encyclopedia
Family of bivalves
Lyonsiidae is a
family of small saltwater clams,
marine
bivalve
molluscs in the
order
Anomalodesmata .
Description
Members of this family have inequivalve, oblong
valves that are nearly equilateral. The right valve is more convex than the left, and there are usually no
teeth . The ligament connecting the two valves is in an internal groove, and the hinge has a free ossicle.
[2]
Genera and species
The
World Register of Marine Species lists the following
genera and
species in the family:
[1]
Allogramma Dall, 1903
Bentholyonsia Habe, 1952
Entodesma Phillips, 1845
Entodesma beana (
d'Orbigny , 1853)
Entodesma brasiliense (Gould, 1850)
Entodesma brevifrons (G.B. Sowerby I, 1834)
Entodesma cuneata (Gray, 1828)
Entodesma delicatum (Marincovich, 1973)
Entodesma elongatulum Soot-Ryen, 1957
Entodesma fretalis (Dall, 1915)
Entodesma lucasana (Bartsch & Rehder, 1939)
Entodesma navicula (
A. Adams and
Reeve , 1850)
Entodesma patagonicum (d'Orbigny, 1846)
Entodesma pictum (G. B. Sowerby I, 1834)
Entodesma saxicola (Baird, 1863)
Entodesma sechuranum Pilsbry & Olsson, 1935
Entodesma solemyalis (Lamarck, 1818)
Entodesma weisbordi Macsotay & Campos, 2001
Lyonsia
Turton , 1822
Lyonsia adriatica
Lyonsia alvarezii d'Orbigny, 1846
Lyonsia arcaeforme Martens, 1885
Lyonsia arenosa (Moller, 1842)
Lyonsia argentea Jeffreys, 1881
Lyonsia bracteata (
Gould , 1850)
Lyonsia californica
Conrad , 1837
Lyonsia cucumerina Ivanova in Scarlato, 1981
Lyonsia floridana
Conrad , 1849
Lyonsia granulifera A. E. Verrill and Bush, 1898
Lyonsia hyalina
Conrad , 1831
Lyonsia kawamurai Habe, 1952
Lyonsia malvinensis d'Orbigny, 1846
Lyonsia norvegica (
J.F. Gmelin , 1791)
Lyonsia nuculaniformis Scarlato, 1981
Lyonsia panamensis Dall, 1908
Lyonsia praetenuis Dunker, 1882
Lyonsia shimkevitch (M. Sars, 1868)
Lyonsia striata (
Montagu , 1815)
Lyonsia taiwanica Lan & Okutani, 2002
Lyonsia ventricosa Gould, 1861
Lyonsia vniroi Scarlato, 1981
References
Wikimedia Commons has media related to
Lyonsiidae .