186/.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 19/ 



a\vare, to a few spots on the south-cast coast. It inhabits deep ^Yater. 

 Length 2^ inches. 



64. Cassis pyrum. 



Cassis j)y rum, Lam. Anim. sans Vert. x. p. 33. 



Cassis zeylanica, Lam. ; Reeve, Conch. Icon. Cassis, pi. 1 1 . 

 f. 29 a, b, c. 



This species (to which the C. i^avcirvgis of Menke approximates 

 so closely as to render it diflficult to separate them) is an inhabitant 

 of rather deep water, like most of the genus, and occurs sparingly in 

 Port Jackson, Port Stephen, and Botany Bay. It is also to be 

 found in Tasmania, and on the west coast of New Zealand, where 

 the examples are beautifully painted with bands of brown wavy spots. 

 Length 2^ inches. 



Fam. DoLiiDiE. 



Qo. DOLIUM VARIEGATUM. 



Dolium variegatum. Lam. Anim. sans Vert. x. p. 133. 



Z). Jdeneri, Phil.; Reeve, Conch. Icon. Bolium, pi. 5. f. 7a. 



This fine large Dolium is the only species of this somewhat re- 

 stricted genus which is to be found as far south as Botany Bay and 

 Port Jackson. It is a thin, globose, inflated shell, having the trans- 

 verse ribs more or less spotted with brown. In Botany Bay, upon 

 the " Seven-mile beach," very large specimens, mostly broken, are 

 washed ashore after easterly gales. Its habitat extends all round 

 North Australia, and westward as far south as King George's Sound. 

 Length 7 inches. 



Fam. Naticid^e. 



66. Natica marochiensis. 



Natica marochiensis. Lam. Anim. sans Vert. viii. p. G42 ; Reeve, 

 Conch. Icon. Natica, pi. 13. f. 52. 



This species, which varies considerably in the pattern of its colour- 

 ing, though nearly constant in form, seems to be of almost world- 

 wide distribution. The Port Jackson specimens are from Middle 

 Harbour. In tlie Sandwich Islands, New Caledonia, the Mauritius, 

 and Madagascar, as well as along the north-east coast of Australia, 

 it occurs pretty generally. North Africa and the West Indies are 

 cited by old authors as its habitat. Length of the largest Port 

 Jackson specimen 1 inch. 



67. Natica (Lunatia) plumbea. 



Natica 'plnmhea. Lam. Anim. sans Vert. viii. p. 632. 



N. sordida. Swains.; Reeve, Conch. Icon. Natica, pi. 9. f. 'Ma,b. 



A fine species, of a turbinated form and dark leaden-grey colour, 

 having the columella tinged with red. It occurs on the sands at 

 Middle Harbour and in Botany and Broken Bays, at low water, 

 burying itself just beneath the surface. Length l- inch. 



