Glorichlamys Dijkstra, 1991
DIJKSTRA, H. H. 1991. A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago. Zoologische Verhandelingen, 271: 1-57, figs. 1-91. [p. 45]
«Glorichlamys gen. nov.
Type species: Pecten elegantissimus Deshayes, 1863.
Diagnosis.— A genus belonging to the tribus Decatopectinini. Shells relatively small (not over 15 mm), plicate, inequivalve, both valves convex, auricles unequal, umbonal angle about 85°. Left valve sculptured with primary and secondary radial costae, provided with concentric lamellae. Interstices sculptured with fine concentric lamellae. Right valve sculptured with divided radial costae, and provided with fine lamellae. Sometimes interstitial radial riblets in late growth-stages. Interstices also sculptured with fine concentric lamellae. Auricles with radial costae and concentric lamellae, which are most and strongly developed on the anterior auricle, sometimes with tubercles. Byssal notch rather deep, ctenolium present, and cardinal crura strongly developed.
Comparison.— Gloripallium Iredale, 1939 is less convex and larger, the radiation is more regular and both valves are sculptured with strongly developed lamellae in early growth-stages. The auricles are less unequal. In Excellichlamys Iredale, 1939, the shells are also less convex, the left valve being nearly flat and sculptured with a regular primary and secondary radiation. Right valve regularly plicated. In late growth-stages there may be divided costae on both valves. Sculpture of auricles strongly developed, with nodules. Shells of Bractechlamys Iredale, 1939 are less convex and larger, whereas the radiation of both valves is more regular, with radial riblets on and between the costae. Sculpture weakly developed on the auricles, which are nearly equal in size.» HENK H. DIJKSTRA, 1991
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Glorichlamys elegantissima (Deshayes); H. H. Dijkstra, 1991, A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago, figure 91.
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Glorichlamys elegantissima (Deshayes); H. H. Dijkstra & A. G. Beu, 2018, Living scallops of Australia and adjacent water, figures 36G-36I.
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«Glorichlamys Dijkstra, 1991
Glorichlamys Dijkstra, 1991: 45. Type species (by original designation): Pecten elegantissimus Deshayes in Maillard, 1863; Recent, Réunion.
Diagnosis. Small Decatopectinini, elongate to subcircular, with evenly to unevenly spaced radial plicae, undivided to quadripartite; widely spaced interstitial commarginal macrosculpture (microsculpture almost lacking), auricles very unequal in size, with antimarginal and commarginal sculpture; weak resilial hinge teeth present (dorsal and/or intermediate teeth absent); byssal notch deep, ctenolium well-developed. Internal plicae present; rib carinae almost absent, very short around ventral margin of some specimens.
Distribution. Miocene (Cox, 1927) to Recent. Tropical Indo-West Pacific, living in the littoral zone to on the continental shelf amongst coral rubble on soft sediment.
Discussion. For comparison of the present genus with Gloripallium Iredale, 1939, Excellichlamys Iredale, 1939, and Bractechlamys Iredale, 1939 see Dijkstra (1991: 45). The characters of the adult macrosculpture of Glorichlamys indicate a position in Decatopectinini. T. R. Waller (pers. comm. 2017) indicated to us that the microsculpture in early ontogeny suggests a position in Palliolinae, but we prefer to retain Glorichlamys in Decatopectinini.»
DIJKSTRA, H. H. & A. G. BEU. 2018. Living scallops of Australia and adjacent waters (Mollusca: Bivalvia: Pectinoidea: Propeamussiidae, Cyclochlamydidae and Pectinidae). Records of the Australian Museum, 70 (2): 113-330, figs. 1-102. [p. 192]
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