BY C. HEDLEY. 741 



Angas, following Reeve, listed C. hiitigiiiosa Hinds, from 

 Moreton Bay and Port Jackson.* Then Brazier reported C. 

 lentiginosa as abundant in 10 to 30 fathoms off Darnley Island, 

 Torres Straits. This latter is described below as Zafra almira7ita. 

 Kobeltand Tryon adopted the expedient of citing the Australian 

 shell as Cohimhella lentiyinosa Reeve, not Hinds. But Angas, 

 realising later that Reeve had misrepresented the shell of Hinds, 

 formally proposed to name the Moreton Bay shell, as drawn by 

 Reeve, CohimbeJla darwini. In the British Museum are the two 

 types, so marked, of C. darwini Angas, presented by the widow 

 of the Rev. T. Lombe Taylor. I have dredged C. darivini in 1 1 

 fathoms in Port Curtis, and have received it from Stradbroke 

 Island, Moreton Bay. After being led astray in 1867 by Reeve, 

 Angas returned to the subject in 1871, and, renouncing his 

 former error, became involved in another. He " cancelled C. 

 lentiginosa as an Australian species," and redetermined, as C. 

 atrata Gould, a longitudinally ribbed, olive-brown shell, two lines 

 long, found under stones at Mosman Bay, Port Jackson. t This 

 is the species described below as Zafra avicennia. 



Cohimbella atrata Gould, t was described from Hong Kong 

 Harbour. 



Two specimens, representing Gould's types, are preserved in 

 the Museum of Albany, U. S. Am., (Report New York State 

 Museum, xxvii, 1875, p.45). At the Natural History Museum, 

 South Kensington, J compared co types of C. atrata with the 

 Sydney shells which Angas had misidentified as that species. 

 The two I find to be specifically distinct; the Australian shells 

 are more solid, broader, have more prominent and curved ribs, 

 and are paler in colour than C. atrata. 



To C. atrata Gould, Tryon has united C. pumila Souverbie, 

 and E. A. Smith,§ in reviewing the South African mollusca, has 

 accepted this reference. 



* Angas, Proc. Zool. Soc, 1867, p. 195. 



t Angas, Proc. Zool. Soc, 1871, p.89. 

 J Gould, Proc. liost. Soc, vii., 1860, p. 334. 

 § Smith, Proc Malac Soc, v., 1903, p. 374. 



