20 STUDIES ON AUSTRALIAN MOLLUSCA, 



redescribed the common Sydney shell. "^ Pilsbry doubtfully 

 subordinates T. zehrides to Cantharidus pyrgos.^ 



These names appeared in the following order : — 



Trockus (lecoratus, Philippi, Zeitsch. f. Mai., July, 1846, p. 

 102. Locality unknown ; from Gruner's collection. 



Trochus fragutn, Philippi, Zeitsch. f. Mai., 1848, ^. 106. 

 Locality unknown ; also from Gruner's collection. 



Trochus pyrgos, Philippi, Zeitsch. f. Mai., 1849, p. 189. Locality 

 Australia; from Hanley's collection. 



Thalotia zehrides, A. Ad., P.Z.S., 1851, p. 173. Locality un- 

 known. 



Canthiridus decoratus, Ad. & Ang. (P.Z.S. 1864, p. 37), is 

 identified by Prof. Tate as Gihhula tiberiana, Crosse, 1863. It is 

 submitted that the different rendering of the generic name of 

 that species permits Cantharidus decoratus, Philippi, to be used 

 for the Sydney shell. 



CUSPIDARIA LATESULCATA, Ten. Woods. 



Necera latesulcata, Woods, P.L.S. N.S.W. ii., 1877 (1878), pp. 

 123, 124. 



(Plate ii., figs. 11-13.) 



That an illustration of this hitherto unfigured species might be 

 supplied, Dr. J. C. Cox has kindly lent me his original series 

 studied by the Rev. J. T. Woods. The valve represented is 

 31 mm. long. C. latesulcata was taken in Torres Straits by Prof. 

 A. C. Haddon.+ 



Smith, who writes the name, N. lati sulcata, marks the species 

 as one he personally examined and includes it in his section A. or 

 Necera proper. § 



Dall has pointed out that because Necera is preoccupied in 

 entomology, Cuspida7'ia must necessarily be adopted. || 



* Angas, P.Z.S., 1867, p. 215. 



t Pilsbry, Man. Conch. xi.,p. 144. 



+ Melvill & Standen, Journ. Linn. Soc. Zool. xxvii., 1899, p. 202. 



§ Smith, Chall. Keport, Lamellibranchiata, 1885, p. 35. 



II Dall, Bull. Mus. Comp. Zool. xii., p. 292. 



