032 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [NoV. 28, 



Subfam. Axiniin^. 



122. AXINIA HOLOSERICA, 



Pectuneulus holosericus, Reeve, P. Z. S. 1843 ; Conch. Icon. pi. 4. 

 f. 18. 



This species is covered with an olive epidermis of a peculiar close 

 velvety softness. Dredged at "Watson's Bay and inside the South 

 Reef, &c. Length 2 inches. 



123. AxiNIA GRAY ANA. 



Pectuneulus grayanus, Dunker, P. Z. S. lS5fi, p. 357. 



Somewhat resembling the European A. (jhjchneris in character, 

 but more globose, with the valves superficially longitudinally striated. 

 Newcastle, Port Stephen, and cast ashore on the sands at the mouth 

 of the Manning River. Length 1 inch 9 lines. 



124. AxiNiA (Pectunculus) tenuicostatus. 



Pectuneulus tenuicostatus, Reeve, P. Z. S. 1843; Conch. Icon. 

 Pectuneulus, pi. 6. f. 35. 



The valves of this species are covered with thread-like ribs, the 

 interstices of which are finely grooved, the roots of epidermis spring- 

 ing from them in rows. I have only hitherto met with young shells 

 of this species in Port Jackson, my adult specimens being from 

 Moreton Bay. Dredged off the " Sow and Pigs " reef. Length of 

 adult examples 1 inch 4 lines. 



Fam. NucuLiD^E. 



125. NUCULA STRANGEl. 



Nueida strangei, A. Ad. Thes. Conch, pi. 229. f. 125. 



A very oblique species, of a pale olive-green colour, smooth and 

 shining. Dredged in Port Jackson and Port Stephen. Length 

 5 lines. 



126. *NUCULA CONSOBRTNA. 



Nucula eonsohrina, A. Ad. & Angas, P. Z. S. 1863, p. 427. 

 sp. 11. 



Less oblique than the preceding, of a dull yellowish olive, with 

 the valves more or less concentrically ridged and finely crenate. 

 Dredged in Parramatta River and Port Stephen. Length 3^ lines. 



Fam. Ledid^. 



127. Leda dohrni. 



Leda dohrni, Hanley. 



A pretty little horn-coloured species, with the valves nearly smooth 

 anteriorly, and ridged, keeled, and birostrate posteriorly. Dredged 

 on the " Sow and Pigs " bank. Length 3 lines. 



