Pecten Müller, 1776

Dijkstra, Henk H. & Beu, Alan G., 2018, Living Scallops of Australia and Adjacent Waters (Mollusca: Bivalvia: Pectinoidea: Propeamussiidae, Cyclochlamydidae and Pectinidae), Records of the Australian Museum (Rec. Aust. Mus.) 70 (2), pp. 113-330 : 219

Pecten Müller, 1776

Pecten Müller, 1776: 248 . Type species (by subsequent designation, Schmidt, 1818): Ostrea maxima Linnaeus, 1758 ; Pliocene to Recent, E Atlantic.

Argus Poli, 1791: 32 (junior homonym of Argus of Bohadsch, 1761, of Scopoli, 1763, and of Scopoli, 1777). Refers to the animal only; see Jukes-Brown (1908: 99–103) and Dall (1909: 251–252). Adopted by Gray (1847: 200) for Pecten maximus , but preoccupied.

Argoderma Poli, 1795: 254 , 260 (proposed for the shell containing the animal of Argus Poli, 1791 ).

Pallium Schröter, 1802 (in 1801–1806): 135. Replacement name for Pecten Müller, 1776 ( Rehder, 1944: 54) .

Pectinium Link, 1807: 156 . Proposed as a new generic name for the Ostrea species of Linnaeus, now referrable to Pecten sensu lato. For a complete list, see Sherborn (1933: 802). Invalid emendation of Pecten .

Pandora Megerle von Mühlfeld, 1811: 59 (junior homonym of Pandora Bruguière, 1797 ). Type species (by monotypy): Ostrea maxima Linnaeus, 1758 .

Pectinites Schlotheim, 1813: 92 , 103, 112 (unavailable, ICZN (1999: 22, Article 20); junior homonym of Pectinites of Gesner, 1758, and of Gmelin, 1791).

Janira Schumacher, 1817: 40 , 177 (junior homonym of Janira Leach, 1814 ). Type species (by monotypy): Janira intermedia Schumacher, 1817 (= Ostrea maxima Linneaus, 1758 ).

Janera G. B. Sowerby II, 1839: 52 (incorrect subsequent spelling of Janira Schumacher, 1817 ).

Vola “Klein” Mörch, 1853: 59. Type species (by monotypy): Ostrea maxima Linnaeus, 1758 .

Oppenheimopecten von Teppner, 1922: 87 , 254. Type species (by original designation): Pecten subbenedictus Fontannes, 1878 ; Miocene , Europe and Algeria.

Deperetia von Teppner, 1922: 87 , 259. Type species (by original designation): Pecten cristatocostatus Sacco, 1897a ; Miocene, Turin, Italy.

Heritschia von Teppner, 1922: 87 , 264. Type species (by original designation): Pecten aduncus von Eichwald, 1830 ; Miocene, NW Ukraine.

Jaworskia von Teppner, 1922: 87 , 266. Type species (by original designation): Pecten grandis J. de C. Sowerby, 1828 ; Pliocene , Suffolk Crag, Great Britain.

Notovola Finlay, 1926: 451 . Type species (by original designation): Pecten novaezelandiae Reeve, 1853 ; Pleistocene and Recent, New Zealand.

Convexopecten Tucker-Rowland, 1938: 82 . Type species (by original designation): Pecten josslingi J. Smith, 1847 ; Miocene, Portugal and France (Cahuzac, 2005: 279, figs 3a–j, 4a–f).

Diagnosis. Pectinini with a sturdy, subcircular shell, up to c. 150 mm in height, with almost flat to concave left valve and strong inflated right valve, both valves with radial macrosculpture and commarginal microsculpture. Auricles almost equal in size. Byssal notch shallow, ctenolium weak in juveniles and lacking in adult stage. Internal rib carinae prominent. Multiple, prominent intermediate hinge teeth between the dorsal and resilial teeth ( Waller, 1991: 38, figs 6e–f). Pre-radial area of left valve unusually tall, up to 10 mm high, smooth.

Distribution. Early Miocene–Recent. The early Miocene species Pecten beudanti Basterot, 1825 is the “earliest true Pecten ” according to Waller (2006a: 24); the Oligocene species “ Peten ” arcuatus (Brocchi, 1814) was included in Gigantopecten by Waller (2006a: 24). Philippia von Teppner (1922: 87 , 221) (type species Pecten arcuatus Brocchi, 1814 ; junior homonym of Philippia Gray, 1847 ) therefore is a synonym of Gigantopecten rather than Pecten . Pecten : E Atlantic and Indo-West Pacific, living in the littoral zone, generally in colonies, with the convex right valve settled into soft sediment and the flat left valve lying at the sedimentwater interface, most specimens camouflaged with a thin layer of sediment.

Discussion. Hertlein (1969: N366) placed Pecten in the Pecten (Pecten) subgroup, together with Amussiopecten Sacco, 1897 , Euvola Dall, 1898 , Flabellipecten Sacco, 1897 ,