1867.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 189 



It is very rare, the few specimens known having been obtained on 

 the rocks at Long Bay. Length 2 inches. 



17. Tritonium (Cabestana) doliarium. 



Triton doliarius. Lam. Anim. sans Vert. vi. p. 641. 



T. africana, A. Ad. (Ichaboe). 



A South African species, of which a few examples, evidently con- 

 specific, have been found along the coast of New South Wales. 

 Length 1 inch 6 lines. 



18. Bursa (Apollon) leucostoma. 



Ranella leucostoma. Lam. Anim. sans Vert. ix. p. .542. 

 Triton leucostoma, Quoy et Gaim. Voy. de I'Astrolabe ; Reeve, 

 Conch. Icon. Ranella, pi. 1. f. 4. 



This fine large Ranella, which has so much the appearance of a 

 Triton, seems to be an aberrant form, partaking of the characters of 

 both genera. It is pretty common amongst the crevices of the rocks 

 at low water about Port Jackson, and the coast of New South Wales 

 generally. It is also found in Tasmania, and, according to Dieffen- 

 bach, in New Zealand. It varies in colour from dark chocolate with 

 banded varices to a pale reddish fawn-colour, and is covered with a 

 short olive-green epidermis. Length Sj inches. 



Fam. Buccinid^. 



Subfam. Nassin^. 



19. Eburna (Zemira) australis. 



Eburna australis. Sow. Conch. 111. f. 5 (not Cancellaria spirata. 

 Lam.). 



This very interesting shell, which belongs to the subgenus Zemira 

 of H. and A. Adams, has been confounded by many authors with 

 the Cancellaria spirata of Lam. They are, however, very distinct 

 shells. 



Z. australis appears never to have been found anywhere but in 

 Port Jackson, where it is rare and an inhabitant of deep water. 

 My specimens were dredged at a depth of 8 or 10 fathoms, inside 

 the north Head. The outer lip has a small tooth near the fore 

 part, and the columella is smooth and truncated at the base. Length 

 8 lines. 



20. *CoMINELLA ADELAIDENSIS. 



Buccinum adelaidense, Crosse, Journ. de Conch. 1864, p. 276, 

 pi. 11. f. 6. 



This is the only species of Cominella I have met with in Port 

 Jackson. It is of a whitish- colour, transversely ridged, with the 

 whorls coronately plicate below the sutures. Middle Harbour. 

 Length 1 inch 2 lines. 



