180 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 1 1 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. AmmoniidjE. 



3. Ammonia (Lituus) l^vis. 



Lituus IcBvis, Gray, Cat. Moll. Brit. Mas. (Cephalopoda), pt. i. 

 p. 116. 



Spirula Icevis, Zool. Voy. Samarang, Moll. pi. 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 lanthince, Velellcs, and other pelagic crea- 

 tures. 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^. 



4. MuREX (Pteronotus) acanthopterus. 



Murex acanthopterus. Lam. Anim. sans Vert. ix. p. 577 ; Reeve, 

 Conch. Icon. Murex, pi. 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, pi. 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 palmi/erus, Sowerby, P. Z. S. 1840; Reeve, Conch. Icon. 

 Murex, pi. 4. f. 20. 



