Leptopecten tumbezensis (Orbigny, 1846)
ORBIGNY, A, D'. 1846. Mollusques. In: A. d'Orbigny, Voyage dans l'Amerique Meridionale. Tome Cinquième. 3ª Partie. Paris & Strasbourg. France. pp. 489-758 [p. 663]
1835 Pecten aspersus G. B. Sowerby I, 1835
1846 Pecten tumbezensis Orbigny, 1846 [nomen novum pro Pecten aspersus G. B. Sowerby I, 1835]
1852 Pecten sowerbyi Reeve, 1852 [nomen novum pro Pecten aspersus G. B. Sowerby I, 1835]
1864 Pecten paucicostatus Carpenter, 1864
1930 Pecten latiauritus [sic] splendens Li, 1930
1930 Pecten latiauritus [sic] indentus Li, 1930
1846 Pecten tumbezensis Orbigny, 1846 [nomen novum pro Pecten aspersus G. B. Sowerby I, 1835]
1852 Pecten sowerbyi Reeve, 1852 [nomen novum pro Pecten aspersus G. B. Sowerby I, 1835]
1864 Pecten paucicostatus Carpenter, 1864
1930 Pecten latiauritus [sic] splendens Li, 1930
1930 Pecten latiauritus [sic] indentus Li, 1930
Pecten aspersus Sow.; G. B. Sowerby II, 1842, Thesaurus conchyliorum, Monograph of the genus Pecten, plate 19, figures 198-199.
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«P. testa suborbiculari, depressiuscula, suboequivalvi, aequilaterali; auriculis inequalibus; sinistra valvarum majuscula altera radiatïm costata, pallescente seu alba, costis quatuordecim majoribus, rotundatis, laevibus, altera radiatim costata, costis quindecim acutioribus,fuscis punctulis caerulescentibus aspersis, interstitiis tenuissime transversim striatis, pallescentibus.
Largeur, 34 millimètres. Celte espèce a été recueillie à Tumbez (Pérou), par M. Cuming.» ALCIDE D'ORBIGNY, 1846
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«Shell small or of medium size, seldom above 35 mm. in height, subequivalve. Ribs number from 13 to IS; those of the right valve are nearly square in section between deeply grooved interspaces; those of the left valve narrowly triangular between wider interspaces. Surface is nearly smooth except for minute concentrics and still finer radial striae. The right valve is usually light-colored, white, but many specimens show a blotch of brown along posterior submargins and occasionally even in the middle; the left valve is colored dark-brown, reddish-brown to slaty black, sometimes mottled with white and under a lens seen to be sprinkled with small white dots or streaks. Interior generally white or slaty gray. Anterior right ear with a deep, byssal notch.
Common along the beaches of northwestern Peru. Range — Gulf of California to northern Peru. For northern records, the writer is referred to Hertlein and Strong. Panama: Panama City; Guanico. Canal Zone: Venado Beach; Palo Seco. Ecuador: Santa Elena; Manta; Esmeraldas. Peru: Tumbez; Zorritos; Mancora; Lobitos; Negritos; Paita.» OLSSON, A. A. 1961. Mollusks of the Tropical Eastern Pacific, Particularly from the southern half of the Panamic-Pacific Faunal Province (Panama to Peru). Panamic-Pacific Pelecypoda. 574 p., pls. 1-86. Paleontological Research Institution. New York , USA. [p. 164, 165]
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Aequipecten (Pacipecten) tumbezensis (d'Orbigny); A. A. Olsson, 1961, Mollusks of the Tropical Eastern Pacific, plate 21, figures 2, 2a-2c.
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