Argopecten subventricosus Dall, 1898
DALL, W. H. 1898. Contributions to the Tertiary fauna of Florida. Silex Beds of Tampa and the Pliocene Beds of the Caloosahatchie River. Part IV. Transactions of the Wagner Free Institute of Science of Philadelphia, 3 (4): i-viii, 571-947, pls. 23-35. [p. 707, pl. 29, fig. 6].
1898 Pecten (Plagioctenium) subventricosus Dall, 1898
W. H. Dall, 1898, plate 29.
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«Pliocene of Ventura County, California, Bowers; and of Pacific Beach at San Diego, Stearns and Hemphill.
Shell of the type of P. ventricosus Sby., from which it differs by being smaller and less tumid, less expanded laterally, with the ribs rounded, instead of flattened, above, and with narrower interspaces; the tops of the ribs smooth, the sides with a dense fringe of concentric lamellae, much as in comparilis T. and H. Alt. and lat. 65, diam. 24 mm». WILLIAM HEALEY DALL, 1898
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