864 MR. G. F. ANGAS ON THE [Nov. 5, Nucula micans, n. sp. (Plate LIV. fig. 16.) Shell minute, obliquely and triangularly ovate, subventricose, very inequilateral, moderately solid, white, shining, very finely con-centrically striated, the striae occasionally running into each other ; dorsal margin somewhat arched posteriorly, short and descending in front ; ventral margin moderately arcuate ; umbones tumid, smooth, pearly, and approximate. Long. 1, alt. f, lat. | line. Hab. Shell-sand, Salt Creek ; Glenelg, St. Vincent's Gulf. Somewhat allied to Nucula pusilla, Ang. (P. Z. S. 18/7, p. 177), from Port Jackson, but possessing a different style of sculpture. EXPLANATION OF PLATE LIV. Fig. Semele hanleyi, p. 859. aphrodite, p. 859. — aspasia, p. 860. phryne, p. 860. 6. Lucina citrina, p. 860. rosea, p. 860. 7. Helix brenchleyi, p. 861. 8. Mitra tatei, p. 861. 862. Fig. 9. Parthenia gracilis, p. 862. 10. Cyclostrerna tatei, p. 862. 11. Buccinulus intermedins, p, 12. Nacella parva, p. 862. 13. Mysella donaciformis, p. 863. 14. Lepton australis, p. 863. 15. Lucina {Codakia) tatei, p. 863 16. Nucula micans, p. 864. 10. A List of additional Species of Marine Mollusca to be in-cluded in the Fauna of the Province of South Australia ; with Notes on their Habitats and Local Distribution. By George French Angas, C.M.Z.S., F.L.S., &c. [Keceived September 19, 1878.] In the year 1S65 I published in the ' Proceedings' of this Society a list of all the species of marine Mollusks that had been met with on the shores of the Province of South Australia up to that date, num-bering about 231 Gasteropods and 97 Conchifera. Since that period other species have come to light, several of them hitherto only known as inhabiting the New-South-\Vales and Tasmanian seaboards ; whilst others have proved to be new to science, and have been described by me recently. I am indebted to Professor Ralph Tate and Mr. W. T. Bednall, of Adelaide, for several interesting additions to my list — which includes 54 Gasteropoda, and 21 Conchifera, &c, hitherto unrecorded as occurring in South Australia, thus making a grand total of 403 species. GASTEROPODA. 1. MUREX ANGASI. Typhis angasi, Crosse, Journ. de Conch. 1863, p. 86, pi. 1. fig. 2, Port Lincoln {Bednall). 2. Triton (Epidromus) bednalli. Triton bednalli, Brazier, Proc. Linn. Soc. N. S. W. 1875, p. 6. Guichen Bay {Bednall),
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