| OCR Text |
Show 924 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [Nov. 28, China seas, in which the prevailing colour of the valves is greenish olive, passing into purple on the ventral margins, where alone the zigzag markings are visible. The dorsal area is strongly crossed with purple lines. Dredged in m u d in the Parramatta River. Length 2 inches. 75. TAPES TURGIDA. Venus turgida, Lam. Anim. sans Vert. vi. p. 353. 1 Tapes turgidula, Desh. P. Z. S. 1853, p. 8. A fine species, more or less finely concentrically ribbed, of a pale brown colour, ornamented with zigzag purplish lines, or three faint bands. Length 3\ inches. In m u d at low water, Middle Harbour, Rose Bay, and Parramatta River. 76. RUPELLARIA MITIS. Venerupis mitis, Desh. P. Z. S. 1853, p. 5. A small species, not unlike V. irus of Europe. Length 8 lines. Botany Bay. 77. RUPELLARIA CRENATA. Venerupis crenata, Lam. Anim. sans Vert. vi. p. 164. A fine species, imbricately sculptured, and laminately frilled at the posterior side. It may be recognized by its peculiar chalky appearance blotched here and there with pale lilac. Found in crevices of rocks at low water in various bays in Port Jackson. It occurs also in Tasmania, and in South Australia, at the roots of mangrove trees. Length 1| inch. Fam. PETRICOLID.E. 78. *CHORISTODON RUBIGINOSUM. Naranio rubiginosa, A. Ad. & Ang. P. Z. S. 1863, p. 425, pl. 37. f. 17. This very interesting species is a thin ventricose shell, finely divaricately sculptured, rayed with brown and purple at the umbones, passing into white towards the ventral margin. I only obtained one living specimen and a single valve; the former was enclosed in a nodule of clay, dredged at 4 fathoms in Watson's Bay, Port Jackson. Length 10 lines. Fam. GLAUCONOMYID^E. 79. GLAUCONOMYA ANGULATA. Glauconome angulata, Reeve, P. Z. S. 1844 ; Conch. Icon. Glauconome, pl. 1. f. 5. A much smaller species than G. rugosa, Hanley (which is found at Moreton Bay), in which the green epidermis is peculiarly shrivelled and wrinkled in the middle, whilst in G. angulata it lies in ridges parallel to the lines of growth. From sandy m u d at low water, |
