Juxtamusium Iredale, 1939

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 : 197

publication ID	https://doi.org/ 10.3853/j.2201-4349.70.2018.1670
publication LSID	lsid:zoobank.org:pub:8084C----
DOI	https://doi.org/10.5281/zenodo.5305919
persistent identifier	https://treatment.plazi.org/id/039A87AD-F84D-3610-FC74-2AB1FC56F889
treatment provided by	Felipe
scientific name	Juxtamusium Iredale, 1939
status

Treatment

Juxtamusium Iredale, 1939 View in CoL

Juxtamusium Iredale, 1939: 368 View in CoL . Type species (by original designation): Juxtamusium oblectatum Iredale, 1939 View in CoL (= Pecten (Chlamys) coudeini Bavay, 1903 View in CoL ); Recent, 0.5 miles W of North Direction Isle, QLD, in 20 fathoms [37 m].

Diagnosis. Small, thin-shelled, subcircular to circular Decatopectinini with depressed, unevenly to evenly spaced, low radial costae; narrowly spaced, delicate commarginal microsculpture throughout ontogeny; resilifer oblique, strongly erect on one side, strong internal hinge ligament, hinge plate very flat, lacking crura or denticles; ctenolium on both valves (see Waller, 1984: 211), byssal notch shallow.

Distribution. Early Miocene–Recent [ Juxtamusium pseudojamviniensis (Eames & Cox, 1956: 41) , early Miocene, Zanzibar; Waller (2006a) agreed that this belongs in Juxtamusium ]. Tropical Indo-West Pacific, living in the littoral to sublittoral zones amongst coral rubble on soft sediment.

Discussion. Hertlein (1969: N357) treated Juxtamusium as a subgenus of Chlamys Röding, 1798 in the Chlamys group. Waller (1986: 40) raised Juxtamusium to a genus in Decatopectinini .