520 



STUDIES ON AUSTRALIAN MOLLUSCA. Part IX. 



By C. Hedley, F.L.S. 



(Plates xxxi.-xxxiii.) 



(Continued from Vol. xxix, p. 211). 



Haliotis cyclobates Peron. 



A prolific collecting ground was traversed by Peron on 

 Kangaroo Island, South Australia. At the mouth of the little 

 " Port Dache," the Pelican Lagoon of our Admiralty chart, two 

 handsome species of Haliotis especially attracted his attention. 

 One, whose perforations project so as to form open truncated 

 cones, he named H. conicopora. This answers to the If. tubifera 

 of Lamarck, which has been referred to H. rtcevosa Martyn, but 

 which may perhaps be H. granti Pritchard and Gatliff. 



A second Haliotis, which Peron named H. cyclobates, "because 

 of its very deep and almost round aperture "* is evidently the 

 H.excavata of Lamarck,! distinguished as an " espece singuliere- 

 ment remarquable par saprofonde excavation et sa forme presque 

 ronde," brought by Peron from New Holland. 



Remembering that Lamarck, who had no scruples about dis- 

 carding names, had the notes and specimens of Peron at his 

 disposal, the coincidence of description , locality, and collector 

 amount to proof that these names are synonymous. H. cyclobates 

 Peron, must replace H. excavata Lamarck, over which it enjoys 

 six years' priority. 



While on the subject of Australian Haliotis, I may add that 

 H. hargravesi Cox, is quite distinct from H. roei Gray, with 

 which Pilsbryl has united it. H. hargravesi grows no larger 



* P^ron, Voy. Terr. Aust. ii. 1816, p. 80. 



t Anim. s. vert. vi. (2), 1822, p.2l5. 



X Man. Conch, xii. 1890, p. 11 8. 



