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Show 186 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [Feb. 14, Spencer's Gulf, in South Australia, where this species attains its maximum size, some of the shells measuring from 9 to 11 inches. The largest Port Jackson specimen I have seen does not exceed 5 inches. Amongst the decapodous Cephalopoda, species of Loligopsis, Ony-choteuthis, Loligo, Sepia, &c. occur on the coast of New South Wales, but at present they appear to be unidentified. Fam. AMMONIID^E. 3. AMMONIA (LITUUS) L,EVIS. Lituus Icevis, Gray, Cat. Moll. Brit. Mus. (Cephalopoda), pt. i. p. 116. Spirula Icevis, Zool. Voy. Samarang, Moll. pl. 4. f. 2. The shells of Lituus are thrown ashore, after easterly storms, on the sandy beaches outside Port Jackson Heads, especially at Bondi Bay, in company with Lanthinee, Velellee, and other pelagic creatures. On one occasion I was fortunate enough to meet with the perfect animal enclosing the shell. Of the pelagic class Pteropoda, the dead shells of several species are cast on shore along the outer beaches, amongst which are those of Cavolina gibbosa, Rang, C. globulosa, Rang, and Styliola subulata, Quoy et Gaim. Class GASTEROPODA. Suborder PROBOSCIDIFERA. Fam. MURICID.F*. 4. M U R E X (PTERONOTUS) ACANTHOPTERUS. Murex acanthopterus, Lam. Anim. sans Vert. ix. p. 577 ; Reeve, Conch. Icon. Murex, pl. 16. f. 64. Of this very rare and elegant species two specimens only were found:-one, an adult example and much beach-worn, at Middle Harbour ; the other, a young living specimen, containing the animal, at Watson's Bay, on the reef at low spring tide. It belongs to the same group of Murices as the South Australian M. triformis, Reeve. Length 2 inches 3 lines. 5. *MUREX (PTERONOTUS) ANGASI. Typhis angasi, Crosse, Journal de Conch. 1863, p. 86, pl. 1. f. 2. This shell, described and figured by M . Crosse, is not a Typhis, but a Murex, belonging to the same group as Murex uncinarius, Lam., from the Cape of Good Hope. It is to be met with under rocks and stones at low water in Watson's Bay, and Middle and North Harbours. Length 10 lines. 6. MUREX (CHICOREUS) PALMIFERUS. Murex palmiferus, Sowerby, P. Z. S. 1840; Reeve, Conch. Icon. Murex, pl. 4. f. 20. |