BY JOHN BRAZIER. 995 



10. CoMiNELLA ACUTiNODOSA, Reeve. 



Buccinum acutinodosum, Reeve, Couch. Icon. pi. 4, fig. 21. 



Six specimens of this species very much sea-worn, are in the 

 collection. I doubt its being a short variety of ComineUa costata, 

 Quoy. In good living specimens of the former the nodules are acute 

 and sharp-pointed at the angle, and are never rounded except in 

 sea-worn examples. 



Mr. Tryon is evidently of opinion that ComineUa glandi- 

 forme, Reeve ; C. Zealandica, Homb. et Jacq. ; and C. lurida, 

 Phillippi, are synonyms ; but the actual species from New Zealand 

 show that they are quite distinct from C. actitinodosa, Reeve, from 

 Norfolk Island, originally given in Reeve, f loni the Cuming collec- 

 tion, as from South Australia. During my visit to Norfolk Island 

 in 1855, I collected a number of fine specimens under stones afc 

 Sydney Bay, but collectors that have been there since have 

 apparently neglected to collect living examples. 



11. CoMiNELLA Tritoniformis, Blainville. 



Purpura Tritoniformis, Blainville ; Adamsia typica, Dunker, 

 P. Z. S. London, p. 357, 1856. 



About twelve examples in fair condition, sea-worn ; the species 

 is very common in Port Jackson and on the coast of New South 

 Wales, also at Lord Howe Island. 



I wish to call the attention of all Conchologists to the fact of 

 the larval state of this species being described as belonging to the 

 genus Sinusiyera, d'Orh. =Chei,etropis, Forbes. In fully adult 

 specimens of C. Tritoniformis, Bl., the apical whorls show 

 distinctly the claw or Sinusigera character ; the larval state 

 of Purpura succincta, Martyn, has been described as Sinusigera. 

 An extensive series of both species of the ComineUa and Purpura 

 from 3 mm. up to 5, 10-20, show the apical structure of Sinusigera. 



Mr. Tryon lumps Purpura neglecta, Angas, with ComineUa 

 Tritoniformis as a synonym ; the apical or embryonic whorls of 



