MOLLUSCA — IIKDLKV. 299 



A 11 C A, Linn^. 



AllCA RETICULATA, Gmelin. 



Area reticulata, Gmelin, Syst. Nat., xiii., 6, 1790, p. .'5.) 11. 



Stations 49, 5G. 



A iew separate vahes were taken off Port Kembla in 63-75 

 fathoms. C3nc adult sliell was procured off Botany Bay in 79-80 

 fathoms. 



G L Y C Y M E R I S, Da Costa. 

 GLYCYMERI8 AUSTRALIS, Q. & G., sp. 



Pectunculus australis, Q. & G., Voy. Astrolabe, iii., 1835, p. 4^9, 



pi. 77, f. 7-9. 

 P. holosericus, Reeve, Conch. Icon., i., Pectunculus, 1843, pi. iv., 



sp 18. 

 P. grayanus, Danker, Proc. Zool. Soc, 1856, p. 357. 



Station 52. 



This species was taken by Quoy & Gaimard in 14 fathoms off 

 Cape Dromedary, New South Wales. Though so precisel}'^ 

 localised, excellentl}^ figured and described, it has been ignored by 

 all subsequent authors. 



One specimen was taken in the Shoalhaven Bight, 19-20 

 fathoms. 



Famihj PTERTTD^. 



PHILOBRYA, Carpenter. 

 PHILOBRYA PECTINATA, sp. nov. 



(Fig. 46.) 



Stations 13, 49. 



Shell small, thin, rather oblique. Colour white C? bleached). 

 Doi'sal margin sloping, posterior and ventral margins rounded, 

 anterior margin sinuate, descending. Prodissoconch of average 

 size. Sculpture about twenty-two sharp, narrow, radiating ribs, 

 crowded posteriorly, apart medially and anteriorly, denticulate 

 the margin, and are intersected by concentric riblets which pro- 

 duce erect scales at the point of contact and enclose nearly square 

 meshes. Within, the margin is narrow, especially anteriorly; the 

 interlocking pits and tubercles upon it are slightly developed, 

 especially anteriorly. In the posterior ventral angle three such 



