100 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [Jan. 17, 



Fam. Mactrid^e. 



98. Mactra (Spisula) fluviatilis, Angas, P. Z. S. 1871, PI. I. 

 f. 31. 



A small species of a dusky white or pale olive-colour, having ex- 

 ternally somewhat the aspect of an Azara. 



Dredged in the Hawkesbury river, New South Wales ; in brackish 

 water at 2 fathoms. 



Subfam. LuTRARiiNiB. 



99. MEROPE iEGYPTIACA. 



Lutraria ceyyptiaca, Gray, Wood's Index Test. pi. 6. f. 34. 

 Lake Macquarie, New South Wales. 



Fam. Tellinid^e. 



100. Tellina (PeronjEoderma) albinella, Lam. Anim. sans 

 Vert. vi. p. 194. 



Broken Bay, rose-coloured var. {Brazier). 



This fine species, though rare in New South Wales, is extremely 

 abundant on the sandy beaches of Encounter Bay in South Australia. 



101. Tellina (Angulus) brazieri, Sow. in Reeve, Conch. 

 Icon. Tellina. 



Dredged at " Sow and Pigs" bank in Port Jackson {Brazier). 

 A small, thin species, of a delicate pink colour. 



Fam. Chamid^e. 



102. Chama reflexa, Reeve, Conch. Icon. Chama, f. 16. 

 Lane Cove {Brazier) ; Middle Harbour, Port Jackson {Rev. B. 



L. King). 



In young specimens from sheltered localities the spines of this 

 variable species become quite long and spout-shaped, like those of 

 Spondylus, whilst in exposed situations they are comparatively short. 



Fam. Astartidje. 



103. Crassatella fulvida, Angas, P. Z. S. 1871, PI. I. f. 32. 



A small subtriangularly ovate and rather compressed species, con- 

 centrically strongly ribbed, and faintly streaked and clouded with 

 pale orange on a yellowish ground. 



Dredged near " Sow and Pigs" bank, Port Jackson {Brazier). 



104. Cardita amabilis, Desh. P. Z. S. 1852, p. 102, pi. xvn. 

 f. 8, 9. 



Dredged in Port Jackson (Brazier) ; also from Moreton Bay. 

 A pretty little species, with nodosely crenate radiating ribs, 

 freckled here and there with reddish spots. 



