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Show 178 MR. G. F. ANGAS ON THE MARINE [Mar. 6, 6. A further List of Additional Species of Marine Mollusca to be included in the Fauna of Port Jackson and the adjacent Coasts of New South Wales. By GEORGE FRENCH ANGAS, F.L.S., F.R.G.S., C.M.Z.S., &c. [Received February 19, 1877.] In the year 1867 I published in these ' Proceedings ' a list of the Marine Mollusks of Port Jackson and the coast of New South Wales, amounting in all to 408 species1. In 1871 I gave an additional list, comprising 109 more species2. I am now enabled, through the indefatigable researches of Mr. Brazier, and from other sources, to add a further list of 140 univalves, and 36 bivalves ; thus bringing up the number of species of Marine Mollusca at present known to inhabit the coast of N e w South Wales to a grand total of 693. Class CEPHALOPODA. Fam. NAUTILTD^E. I. N A U T I L U S POMPILIUS, Linn. Cast ashore at Coff's Harbour, north of the Bellinger River. 2. NAUTILUS MACROMPHALUS, SOW. Same locality as N. pompilius. Class PTEROPODA. Fam. CAVOLINID^E. 3. CAVOLINA GIBBOSA, Rang. Found washed up on exposed beaches all along the coast. 4. CAVOLINA FLAVA, D'Orb. Obtained in the dredge at night, in Port Jackson. 5. CAVOLINA QUADRIDENTATA, Lesueur. On exposed beaches. 6. CAVOLINA LONGIROSTRIS. Lesueur. Obtained in the dredge with C. flava, in Port Jackson. 7. CAVOLINA LIMBATA, D'Orb. On exposed beaches. 8. CAVOLINA INFLEXA, Lesueur. On exposed beaches. 9. DIACRIA MUCRONATA, Quoy & Gaim. Port Stephens. 10. STYLIOLA SUBULATA, Quoy & Gaim. On exposed beaches. 1 See P. Z. S. 1867, pp. 185, 908, 912. * See P. Z. S. 1871, P. |