596 





STUDIES ON AUSTRALIAN MOLLUSC A. 



Part YII. 



By C. Hedley, F.L.S. 



(Plates xxix., xxxi., xxxii., xxxiii.) 



(Continued from p. 29.) 



Chione lagupus, Lamarck. 

 Vemi^s lagopus, Lamarck, An. s. Vert, v., 1818, p. 591. 



The original locality for this species is King George's Sound, 

 W.A. It was characterised by its author as 40 mm. long, exter- 

 nally white splashed with chestnut, within tinged with rose; 

 remarkable for its close longitudinal furrows, which are crenulated 

 on their upper sides, anteriorly the intervening ridges become 

 almost lamellate. He classed it next but one to Venus yallinula, 

 Lamk. Probably his type passed with Delessert's collection to 

 the Geneva Museum.* 



The species was recognised from West Australia by Menke,t 

 who had proposed for it the name of Venus amyydalum. Except 

 that Tate (Trans. Hoy. See. S.A. ix., 1887, p. 91) has reduced it 

 to a synonym of Chione yallinula^ Lamarck's name has apparently 

 dropped out of notice of conchological writers. 



Yet his description applies exactly and exclusively to the 

 Venus australis, Sowerby, I which name it should supersede. The 

 name Venus australis was in the same year given to another 

 species by Quoy k, Gaimard. But in 1790 it had already (S3\st. 



* Crosse, Journ. de Conch, xvii., 1S69, p. 208. 



t Menke, Spin. Moll. Nov. Holl. 1843, p. 43. 



X Sowerby, P.Z.S., 1835, p. 22. 



