198 mr. g. f. angas on australian mollusca. [feb. 14, 



68. Natica (Lunatia) melastoma. 



Natica melastoma, Swainson, Zool. Illust. pi. 79 ; Reeve, Conch. 

 Icon. Natica, pi. IB. f. 78. 



A handsome species, less conical than N. phimhea, of a fulvous- 

 ashy tint, -with a coloured band below the suture, and having the 

 umbilicus overspread by an orange-red callosity. It inhabits a 

 similar locality to the preceding ; and may be distinguished from N. 

 strangei by its less conical form and filled up umbilicus. Length 

 I^ inch. 



69. Natica (Lunatia) strangei. 



Natica strangei, Reeve, (^.onch. Icon. pi. 18. f. 81. 



Like N. plumbea in form, bluish-ashy colour, with a red border 

 round the umbilical area, and a paler band of the same colour below 

 the sutures. Rare in Port Jackson. It extends northwards to Cape 

 York. Length 1 inch 2 lines. 



70. Natica (Neverita) chemnitzii. 



Natica chemnitzii, Rccluz, Mus. Cuming; Reeve, Conch. Icon. 

 Natica, pi. 2. f. 7. 



This large species is nearly allied to N. lamarcldana, but is more 

 conical, and has the umbilicus more covered by a callosity, which is 

 divided in the middle. It is found on the sandy mud at low water 

 in Middle Harbour and at Botany Bay. Length 2 inches. 



71. Natica (Neverita) lamarckiana. 



Natica lamarckiana, Recluz, MS. Mus. Cuming; Reeve, Conch. 

 Icon. Natica, pi. 2. f. 6. 



A globular depressed species, with the umbilicus largely angularly 

 excavated and half covered by a grooved lecurved callosity. Rare 

 in Port Jackson. Length of my specimen 1 inch. 



72. *Aimauropsis morchi. 



A-mauropsis morchi, Adams & Angas, P. Z. S. 18G3, p. 423. 



A dark-brown horny-looking shell, in aspect something like a 

 small Vivipara, with a very acute spire, and the whorls obtusely 

 angled at the sutures. The operculum is thin, horny, and subspiral. 

 Only two exanijjles of this interesting species have been obtained ; 

 they were found adhering to the under surface of a large stone, at 

 Watson's Bay, just inside Port Jackson Heads, during an unprece- 

 dentedly low tide. Length 5 lines. 



73. Naticina nitida. 



Naticina nitida, Reeve, Conch. Icon. 



Dredged near Spectacle Island. Several small specimens of this 

 species were dredged at the above locality. It occurs also in South 

 Australia. Length -i-inch, 



