Dentamussium obliteratum (Linnaeus, 1758)
LINNAEUS, C. 1758. Sistema Naturae per Regna tria Naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio Decima, Reformata, [iii], 824 p. Impensis Direct. Laurentii Salvii. Holmiae [Stockholm], 1758 [p. 697]
1758 Ostrea obliterata Linnaeus, 1758
1784 Pecten glaberrimus Chemmitz, 1784 [invalid publication]
1786 Ostrea tenuis Schröter, 1786
1784 Pecten glaberrimus Chemmitz, 1784 [invalid publication]
1786 Ostrea tenuis Schröter, 1786
N. Gualteri, 1742, Index Testarum Conchyliorum, plate 73. "Linnaeus (1758: 697) wrongly referred to Gualtieri’s figure G, which was subsequently corrected (1764, 1767) to figure C." (H. H. Dijkstra, 1999, p. 402)
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«obliterata. 160. O. testa radiis 24 duplicatis, extus laevi.
Gualt. test. t. 73. f. G. Habitat in O. australiore.» CAROLUS LINNAEUS, 1758
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«Type data. — Lectotype (H 45 mm, pv) UUZM, paralectotype (pv) UUZM, paralectotype (pv) MSNP, designated by Dijkstra (1999: 401). Type locality: "Habitat in O. autraliore." Locality incorrect and designated by Dijkstra (1999: 401) to the Moluccas, Indonesia.
Material examined. — Philippines: PMBP 2004, Stn L46, 90-110 m, 34 pv (A), 1 v; L49, 90 m, 100 pv (A), 101 v; Stn L51-60, 43-62 m, 1 pv (A); Stn L76, c. 80 m, 15 pv (A), 45 v; Stn P4, 80-120 m, 200 pv (A), 108 v.
Description. — Shell rather thin, up to 60 mm high, weakly inflated, nearly circular, equivalve, slightly inequilateral, auricles subequal in size, umbonal angle c. 115˚. Colour orange to red with radiating pale or dark red bands of left valve, right valve paler, interior whitish, yellowish, brownish or purplish. Both valves smooth, inner surface with c. 50 small regular spaced radial lirae. Microsculpture of antimarginal striae in early growth stage and on the central pat radial striae, near the ventral margin delicate radial grooves. Hinge line straight, byssal notch moderately shallow, ctenolium
weak. Distribution. — Tropical Indo-West Pacific from the Philippine Islands southwards to Indonesia (Raines & Poppe, 2006: 140). Present specimens from the Philippines alive at 62-90 m (minimum depth range). Living on soft bottom assemblages (sand and mud). Remarks. — The present specimens from the Philippines are morphologically similar to the type material 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 pls, 2 tabs. [p. 54]
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Dentamussium obliteratum (Linnaeus, 1758); H. H. Dijkstra, 2013, Pectinoidea from the Panglao region, plate 14, figures 1a-1d.
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«The Pecten recognised by conchologists for this species is the P. obliteratus of Sowerby's Monograph (Knorr, Delices, pt. 5, pl. 21, f. 6). It was determined chiefly by the details communicated in the 'Museum Ulricse,' and the indicated affinity with pleuronectes. Gualtier's figure is very rude, but is usually quoted for the species. Our author did not himself possess it.»
HANLEY, S. C. T. 1855. Ipsa Linnaei Conchylia. The Shells of Linnaeus, Determined from his Manuscripts and Collection. Williams & Norgate. London. [p. 108]
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G. W. Knorr, Les delices, plate 21.
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