CLASS PELECYPODA 
63 
Range. Pribiloff Islands, Bering Sea, to the Santa Barbara Islands, 
California. Also Japan. 
Genus HINNITES Defrance, 1821. 
Shell oval, irregular, inequivalve, sub equilateral, close, adhering by 
the right valve ,* eared irregularly; hinge without teeth; ligament thick, in 
a deep, narrow pit. Differs from Pecten in its irregular growth, and in 
being adherent. (Tryon. S. S. Conch.) 
Type. Hinnites cortezi Defrance. 
Distribution. Europe, California. 
Range in time. Trias of Greenland and Europe. 
Hinnites giganteus Gray, 1825. 
Plate 25, figs, la, lb. 
Ann. Phil., (2), 12:103. 
Shell ovate, convex, radiately scabrous-ridged, smooth and neatly dis¬ 
posed in pairs near the umbones; orange red, or whitish, interior white, 
stained with rich purple violet near the hinge. Length, 125; height, 106; 
diameter 40 mm. (Conch. Iconica.) 
Type in British Museum? Type locality, California? 
Range. Aleutian Islands to Magdalena Bay, Lower California. In 
the Pleistocene at Santa Barbara and San Diego; Pliocene, Santa Rosa 
Island, Ventura County, Los Angeles County, California. 
Family LIMID.7E. 
Genus LIMA (Bruguiere) Cuvier 1798. 
Shell equivalve, compressed, obliquely oval; anterior side straight, 
gaping, posterior rounded, usually close; umbones apart, eared; valves 
white, smooth, punctate-striate, or radiately ribbed and imbricated; there 
is usually a thin, brownish epidermis; hinge area triangular, cartilage pit 
central; adductor impression lateral, large, double; pedal scars two, small. 
(Tryon. S. S. Conch.) 
Type. Ostrea lima Linnaeus. 
Distribution. Norway, Britain, West Indies, Canaries, India, 
Australia, United States. 
Range in time. Carboniferous and Pleistocene. 
Subgenus Mantellum Bolten, 1798. 
Lima dehiscens Conrad, 1837. 
Journ. Acad. Nat. Sci. Phila ., 7:247; pi. 19, fig. 7. 
Shell elliptical, with radiating striae; on one side profoundly gaping; 
margin of the hiatus thickened within, subreflected exteriorly; ears very 
