MOIiTJSCA. 113 



» 



' Conch.-Cab.' That collected by Dr. Coppinger has the auricle pre- 

 cisely like that of Bunker's specimen, this form of it being, judging 

 from the series before me, more usual than that figured by Eeeve. 



64. Avicula rufa. 

 Dunker, Conch.-Cah. p. 58, pi. 19. figs. 7, 8. 



. Hah. Java (Bunker); West Island, Prince of Wales Channel, 

 Torres Straits, 7 fms., sandy bottom {Ooppinger). 



All three specimens from the latter locality exhibit several white 

 radiating lines on both valves, as indicated in the figure 8 referred 

 to. The presence of these rays appears to have been rather excep- 

 tional in the Javan specimens examined by Dunker. 



65. Avicula smaragdiua. 

 Beeoe, ponch. Icon. flg. 45. 



Hab. Moluccas? (Reeve) ; N.B. Queensland (Ooppinger). 



The young stage of this species has not the very prolonged oblique 

 form of the adult. The figure in Reeve's work is much too vividly 

 coloured, nor does it indicate any rays of spots of a darker tint 

 which generally adorn both valves. The ear of the left valve is 

 coarsely concentrically wrinkled and extends a little within the 

 valve. This species may be the Mytilus nteleagridis of Chemnitz 

 (Conch.-Cab. viii. p. 143, flg. 726).. 



66. Avicula zebra. 

 Beeve, Conch. Icon. fig. 36; Bunher, Conch.-Cah. p. 60, pi. 21. fig. 3. 



Hah. Moreton Bay {Reeve) ; Port Denison, Queensland, 3-4 fms. 

 (Ooppinger). 



The two specimens obtained at the latter locality were attached 

 to a species of Polyzoa, and in a similar position to the types as 

 figured in the 'Conchologia Iconica,' namely with the umbones 

 directed downwards. 



67. Melina cumingii. 

 Perna cumiagii, Iteeve, Conch. Icon. xi. flg. 3. 



iTaft.' Australia (Reeve) ; Port Curtis (Ooppinger). 

 The specimen figured by Eeeve is higher than long, but another 

 in the Cumingian collection has these proportions reversed. 



68. Crenatula nigrina. 

 Lamarck ; Reeve, Conch. Icon. flg. 1 a. 



Hah. Eed Sea (Reeve) ; Albany Island, west coast of Australia 

 (Ooppinger). 



This species, also O. hieostalis and C. mytihides, as determined 

 by Eeeve, are probably slight variations of one and the same form. 



