Chlamys subantarctica Hedley, 1916
HEDLEY, C. 1916. Mollusca. Australasian Antarctic Expedition 1911-1914, Scientifc Reports, series C - Zoology and Botany 4: 1-80, 3 text-figs., pls. 1-9. R. E. E. Rogers, Government Printer. North Terrace, Adelaide. [p. 23, pl. 2, figs. 14, 15]
«CHLAMYS SUBANTARCTICA sp. nov.
(Plate II., figs. 14; 15.) Shell large, solid, oval, moderately inflated. Auricles nearly equal. Colour pink, paler towards the margins. At an inch from the umbo there are 27 radial ribs passing, from simple to compound, so that at the margin each rib is split into a bundle of three or four riblets, while one or two similar riblets occupy each intervenig furrow. From less worn parts it appears that three furrows were closely latticed by concentric laminae. Height, 80; length, 75; depth of single valve, 15 mm.
This is very close to a recent Tasmanian species idetitified as C. antiaustralis Tate,* but is rather shorter in proportion to height and has the auricles more coarsely ribbed. The original of this description is a rather worn single valve with a large gap in the margin. It was dredged December 4th, 1913, in 14 fathoms, sandy bottom, Lusitania Bay, Macquarie Island. Perhaps the young of this is represented by a perfect specimen 6 mm. high, of a cadmium yellow colour, from an anchor recovered by the "Rachel Cohen," off the Nuggets, Macquarie Island, in 12 fathoms.' Except C. colbecki, no species from so high a latitude reaches this size.» * Hedley.— "Endeavour" Resuts, i. 1911, p. 96.
CHARLES HEDLEY, 1916
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C. Hedley, 1916, plate 2.
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