BY J. BRAZIER, C.M.Z.S., ETC. 487 



the second nearly m tlie middle, third on the angle, fourth rather 

 long an the anterior end, length five, breadth three and a-half 

 lines ; another specimen having two thin, nearly obsolete slightly 

 lamellated ribs, with four prongs on each rib disposed in the same 

 manner as the previous specimen, this is the smallest of the series, 

 length four and a-half, breadth three and a-quarter lines. Adult 

 specimens measure twenty-six lines long, twenty lines broad, the 

 Tasmanian examjoles are a little broader. 



The valves of this species are crenulated at the margins and 

 could be classed in either Mercenaria or Chione ; in Ccdlista the 

 margins are entire and never crenulated. 



10. HeMICARDIA DOXACIFOR^^riS. 



Cardium donaciforme, Schrpoter, Yin. 3. p. 68, pi. 7, f. 14. — Eeeve, 

 Conch. Icon., pi. 5, sp. 25. Cardium australiense, Eeeve, 

 Proc. Zool. Soc, 1844, p. 168. Cardium Donaciforme, Hanley 

 Catalogue Eecent Bivalve Shell, p. 144. Cardium australiense, 

 Angas, Proc. Zool. Soc, 1867, p. 925. 



Hah. Port Jackson Heads, Lake Mactj^uarie, Port Stephens, 

 New South Wales, {Brazier). Port Lincoln (Harvey). 



The name given to this species by Peeve I think was quite 

 uncalled for. I doubt if it was found at Port Lincoln, South 

 Australia. Mr. Angas does not mention it in his list of South 

 Australian Shells, so he could not have found it. Mr. Bednall 

 or Professor Tate have not I believe met it there. I believe it is 

 confined to the east coast of Australia. During the Chevert 

 Expedition we did not procure any specimens, either in Torres 

 Straits or on the north-east coast. The late Mr. Cuming obtained 

 his specimen at the Philippine Islands, and none knew better than 

 Mr. Cuming the value of a new s]3ecies, so Mr. Peeve described 

 the Australian form as a new species on account of a slight 

 difference in colour. I have eighty specimens dredged out side 

 Sydney Heads, there are not two alike in colour or marking in 

 the series ; a very fine lot for a species maker. The specimens 



