Anguipecten superbus (G. B. Sowerby II, 1842)
SOWERBY II, G. B. 1842. Monograph of the genus Pecten. In: G. B. Sowerby II (Ed.), 1842-1847, Thesaurus conchyliorum; or, monographs of genera of shells, 1 (2): 45-78, pls. 12-20. London. [p. 62, pl. 12, fig. 11]
1842 Pecten superbus G. B. Sowerby II, 1842
G. B. Sowerby II, 1842, plate 12.
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«T. sub-ovali, obliquâ, postice expansâ, compressâ, crassâ; auriculis parvis, obtusis; costis 23, crassis, rotundatis, laevibus, interstitiis angustis; colore propè umbones roseo, propè margines, pallidè luteo, fasciis rubris, praeruptis, angulatis variegato.
Long. 2.40; lat. 0.65.; alt. 2.60.; poll. A flat, solid, obliquely oval shell; the auricles small, obtuse; with 23 rounded smooth, thick ribs; general colour, pale straw, pale pink near the umbones, variegated with interrupted angular bands of brightish red. We have only seen one specimen of this magniticent shell which is in the collection of Mr. Cuming.» GEORGE BRETTINGHAM SOWERBY II, 1842
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«Description. — Shell solid, up to c. 70 mm high, most specimens smaller, somewhat triangularly oblong, weakly inflated, posterior margin longer than anterior, left and right
valves almost equally convex, slightly inequivalve and somewhat inequilateral, auricles short and almost equal in size, umbonal angle 85˚-90˚; cream maculated with dots and streaks (cream, orange, red or brown), right valve paler and more uniform than left. Both valves sculptured with 20-25 evenly spaced radial costae, with only a few secondary radial riblets on anterior and posterior ends. Microsculpture of very closely spaced commarginal lamellae. Auricles almost smooth, anterior auricle of right valve weakly sculptured with radial riblets. Hinge line straight. Inner surface plicated, internal rib carinae weak near margin with a few carinate riblets. Adductor scar insertion prominent. Resilifer triangular, with sides erect. Resilial teeth weak, intermediate teeth well-developed. Byssal notch shallow in juveniles, almost absent in adults, byssal fasciole absent. Weak functional ctenolium with 1-3 teeth in juveniles, absent from adults. Distribution. — Indo-West Pacific, from southern Japan southwards to northern Australia, westwards Zululand (South Africa), and eastwards to the Austral Islands. Zululand (South Africa): 100 m, dead (Dijkstra & Kilburn, 2001: 273); Amami Islands, southwards to tropical West Pacific: 10-30 m (Hayami, 2000: 903); Philippines: 10-30 m (Raines, 2010: 596); East and South China Sea, Borneo, Indian Ocean: intertidal zone – 50 m (Bernard, Cai & Morton, 1993: 51, in part); Japan and SW Pacific: 10-80 m (Abbott & Dance, 1982: 312); Papua New Guinea: shallow water (Dijkstra, 1998a: 15). Present specimen from the Philippines dead at 80-120 m. Living under coral slabs or boulders or amongst coral rubble on soft bottom assemblages. Remarks. — Present material from the Philippines is morphologically similar to the type specimen from Indonesia.» DIJKSTRA, H. H. 2013. Pectinoidea (Bivalvia: Propeamussiidae and Pectinidae) from the Panglao region, Philippine Islands. Vita Malacologica, 10: 1-108, pls. 1-32. [p. 34]
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Anguipecten superbus (G. B. Sowerby 2nd, 1842); H. H. Dijkstra, 2013, Pectinoidea from the Panglao region, Philippine Islands, plate 7, figures 3a-3d; plate 9, figures 2a, 2b (juvenile).
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