Delectopecten harfordus (Davis, 1913)
DAVIS, C. H. 1913. New species from the Santa Lucia Mountains, California, with a discussion of the Jurassic age of the Slate's Springs. Journal of Geology, 21 (5): 453-458, figs. 1-7. [p. 456, figs. 3, 5, 6]
1913 Pecten (Camptonectes) harfordus Davis, 1913
Delectopecten harfordus (Davis); E. J. Moore, 1984, Tertiary Marine Pelecypods of California: Propeamussidae and Pectinidae, plate 3, figures 6-9.
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«A small thin pecten; form ovate, nearly smooth, and marked with fine almost microscopic groovings which radiate from the umbo and are deflected laterally from a median line on each valve. The shell is marked also by fine concentric lines, every fifth or sixth of which is more distinct. The anterior auricle is large; the anterior edge forms a right angle with the cardinal margin, and rounds sharply into the deep byssal sinus. The left auricle is small and obliquely trunkated. The beaks are sharp and stop at the hinge-line.
This pecten is compared by Stanton¹ to Pecten pedroanus, but the latter differs from these specimens in having stronger radial markings especially on the auricles, and in general outline. It is like P. bellistriatus in its sculpture but is smaller; it has finer markings than P. extenuatus Meek.»
¹ U.S.G.S., San Luis Folio.
CHARLES H. DAVIS, 1913
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