Pecten effluens Dall, 1886
DALL, W. H. 1886. Report on the Mollusca, Part I. Brachiopoda and Pelecypoda. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer “Blake”…. Bulletin of the Museum of Comparative Zoology at Harvard University, 12: 171-318, pls. 1-9. [p. 219]
«Pecten effluens, n. s.
Shell small, high, flattened, covered all over with very fine striae radiating from the umbo, but diverging from the middle line of the valve without reference to the other sculpture; left valve with about ten little elevated poorly defined ribs, which are most distinct in the young, rounded, smooth, separated by wider shallow interspaces, in which are from three to seven minute subequal regular threads, with small hardly elevated, regularly spaced, transverse scales on them; anterior ear very small, obliquely cut off; posterior ear high, short, with about ten obscure radiating threads; cardinal margin straight, simple; right valve with faint radiating ridges most prominent near the margin, and tending to pair; ears similar to those of the opposite valve, byssal notch small, fasciole very narrow, with four pectinium-spines beyond the edge of the ear, and a series of them overhanging the fasciole within it; cartilage pit rather small, inner cardinal border nearly smooth; color pale orange, lemon-yellow toward the umbo; height of largest valve, 26.0, width 22.0 mm.; umbonal angle about 85°.
Valves were dredged in 127 fms. off Havana, by Sigsbee. This shell seems nearest P. furtivus Lovèn, but has smaller anterior ears, finer strite, and altogether different coarse sculpture, especially on the left valve. Both forms have the Camptonectes striation.» WILLIAM HEALEY DALL, 1886
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Pecten effluens Dall; W. H. Dall, 1889, A preliminary catalog of the shell-bearing marine mollusks and brachiopods of the southeastern coast of the United States, plate 42, figure 9.
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