Pecten (Chlamys) latiauritus var. cerritensis Arnold, 1906
ARNOLD, R. 1906. The Tertiary and Quaternary pectens of California. United States Geological Survey Professional Paper, 47: 1-264, pls. 1-53. [p. 129]
«PECTEN (CHLAMYS) LATIAURITUS Conrad var. CERRITENSIS n. var.
Pl. XLVI, figs. 6 and 7. 1903. Pecten ( Chlamys) latiauritus Conrad var. fragilis Arnold, Mem. Cal. Acad. Sci., vol. 3, pt. 2, 1903, p. 112, pl. 12, fig. 8; not Pecten fragilis Jeffreys, Ann. and Mag. Nat. Hist., 4th ser., vol. 18, 1876, p. 424.
Description.— Shell of same general type as P. latiauritus. More compressed and much thinner; ribs seven to nine, very low and rounded, with shallow, rounded interspaces; surface smooth, the concentric sculpture being nearly obsolete; hinge long; ears rather sharply pointed.
Dimensions.— Alt. 26 mm.; long. 26 mm.; hinge line 25 mm.; diameter 7.8 mm. This variety is distinguishable from Dall's variety fucicolus, which it resembles, by having a longer hinge line and generally more pointed ears. Found associated with the typical species in the Pleistocene (upper San Pedro formation) at San Pedro and San Diego. RANGE
Pleistocene. San Pedro; San Diego (Arnold).»
RALPH ARNOLD, 1906
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R. Arnold, 1906, plate 46.
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