928 mr. g. f. angas on australian mollttsca. [nov. 28, 



99. Kellia cycladiformis. 



Erycina cijdadiformis, Desh. Trait. Elcm. pi. 11. f. 6-9. 

 More oblong than the preceding, pearly white, with a thin oliva- 

 ceous epidermis. Length 5 lines. Port Jackson. 



Fam. Leptonid.e. 



100. *Lepton adamsi. 



Lejpton adamsi, Angas, anted., p. 910, PI. xliv. f. 11. 



A very beautiful species, triangularly ovate, of a pearly white, with 

 the anterior and posterior sides finely shagreened and smooth in the 

 middle; the posterior margin widely plicate. Length 6| lines. Port 

 Jackson. 



Fam. Galeommid.e. 



101. Scintilla stuangei. 



Scintilla strangei, Desh. P. Z. S. 1855, p. 181. 



A thin, semipellucic!, v/liite, shining, transversely ovate shell. 

 Found nestling under rocks and stones at very low spring tides in 

 Port Jackson. Length 9 lines. This is one of the largest species 

 of the genus Scintilla, which was founded by M. Deshayes, and now 

 includes nearly fifty species. 



102. Scintilla anomala. 



Scintilla anomala, Desh. P. Z. S. 1855, p. 181. 



A small, rounded, and somewhat flattened, thin, shining, trans- 

 parent white species. Found under stones at low water. Length 

 4 lines. M. Deshayes's types in the Cumingian collection are from 

 13orneo. 



Fam. AstartidjE. 



103. *GoULDIA AL'STRALIS. 



Gouldia australis, Angas, P. Z. S. 1865, p. 459. 



A little subtriangular shell of a purplish-fawn colour, sometimes 

 faintly two-rayed, with the umbones darker, having externally the 

 aspect of a minute Venus. Dredged in Port Jackson in 5 fathoms. 

 Length 3 lines. 



104. Mytilicardia excavata. 



Cardita excavata, Desh. P. Z. S. 1852, p. 100, pi. 17. f. 1-3. 



An elongately transverse shell, broadly radiately ribbed, the ribs 

 armed with vaulted projecting scales. Found under stones at low 

 water. Length 1 inch 2 lines. 



Fam. Mytilid^e. 

 Subfam. Mytilin^. 



105. Mytilus (Aulacomya) hirsutus. 



Mylilus Idrsutus, Lam. Anim. sans Vert. vii. p. 38j llceve, Conch. 

 Icon. Mytilus, pi. 3. f. 8. 



