ISG/.] MR. G.'f. ANGAS on AUSTRALIAN MOLLUSCA. 925 



Parramatta River and Lane Cove. Length I inch. Both these 

 species occur also at the Phihppine Island?. 



Fam. Cardiid.«. 



80. Cardium (Papyridium) papyracexjm. 



Cardium papyraceum, Chem. Conch. Cah, vi. p. 190, pi. 18. f. 184; 

 Reeve, Conch. Icon. Cardium, pi. 2. f. •). 



A thin whitish species, faintly mottled with flesh-colour, and 

 tinged with deep purple at the umbones ; the valves are radiatcly 

 impressedly striated, and minutely granulated anteriorlj', thus distin- 

 guishing it from C. muticvm, which the elder Sowerby has figured as 

 a variety in his ' Conch. lUustr.' f. 55, Dredged in Middle Har- 

 bour. Length H inch. 



81. Cardium (Papyridium) tenuicostatum, 



Cardium tenuicostatum. Lam. Anim. sans Vert. vi. p. 3/2 ; Reeve, 

 Conch. Icon. Cardium, pi. 10. f. 50. 



A thin, light, somewhat ventricose shell, radiately very numerously 

 finely ribbed, the epidermis bristling along the summit of the ribs; 

 more or less waved with flesh-coloured painting, and purple at the 

 umbones. Dredged in Port Jackson, I3otany Bay, &c. Length 

 \\ inch. 



82. Cardium pulchellum. 



Cardium pidchellum. Reeve, Conch. Icon. Cardium, pi. 8. f. 42. 



C. striatidum juv.. Sow. Conch. 111. f. 45. 



This beautiful little species is finely striated and armed with sharp 

 tubercles posteriorly ; its colour is whitish, handsomely rayed with 

 orange. C. striutulum. Sow., from Cook's Straits, New Zealand, is 

 very similar in its sculpture, but it is a much larger shell, and wants 

 the characteristic orange rays. Dredged inside Port-Jackson Heads 

 in deep water. Length 7 lines. 



83. Cardium australiense. 



Cardium australiense, Reeve, P. Z. S. 1844 ; Conch. Icon. pi. 5. 

 f. 24. 



A singular form of the genus, having much of the aspect of a 

 Donax externrdly. Length 1 inch 6 lines. Deep water. Broken 

 Bay, Port Stephen, and Moreton Bay. 



Fam. Chamid.e. 



84. Chama spinosa. 



Chama spinosa, Brod. Trans. Zool. Soc. i. p. 305, pi. 38. f. 8, 9. 



A pretty little species, concentrically frilled with rows of short, 

 irregular, imbricate spines ; white, tinged with brick-red. Found 

 attached to rocks at low spring tides. Length 1 inch. 



