276 STUDIES ON AUSTRALIAN MOLLUSCA, xi., 



Cryptomya elliptica A. Adams, Ann. Mag. Nat. Hist. (4) ii., 

 1868, p. 366; Id., Tryon, Am. Journ. Conch iv., suppl., 1868, p. 

 68; Id., Angas, Proc. Zool. Soc, 1871, p. 99; Id., Dunker, Moll. 

 Jap., 1882, p. 178, PI. vii., figs. 17-19 ; Id., Lynge, D. Kgl. Danske 

 Vidensk. Selsk. Skrifter, 7, v., 1909, p. 273. 



Mya elliptica Sowerby, Conch. Icon., xx., 1875, PI. i., fig. 2. 



Cryptomya truncata Gould, Proc. Boston Soc. Nat. Hist, viii., 



1861, p. 21; Id., Gould, Otia Conch., 1862, p. 163. 



This species was originally described from "Sydney, 1 fms., mud 

 (F. Strange)." In the British Museum, I found three specimens, 

 evidently the types, but not so marked. As the existing illustra- 

 tions are either obscure or not easily accessible to local students, a 

 drawing is supplied of one of these types, which measured 15 mm. 

 in length, and 10 in height. 



Emarginula bajula, sp.nov. 



Emarginula dilecta Hedley (not A. Adams), These Proceedings, 

 xxx., 1906, p. 521, PI. xxxiii., figs. 37, 38. 



In the British Museum, I saw a tablet of four specimens marked 

 on the under surface "E. dilecta A. Ad., Thesaurus, iii., p. 211, PI. 

 245, fig. 5., King George's Sound, M.C." Though not so marked, 

 these appear to be the types of the species. There is another series 

 once marked "dilecta, A. Ad. M.C," but now corrected to "not 

 dilecta, A. Ad." This latter is the species I figured as dilecta. 

 Finding now that it is distinct and unnamed, I propose to call it E. 

 bajula, having for type the Maroubra specimen figured. Both have 

 the fasciole a furrow. But E. dilecta is elevated more regularly 

 oval, with a subcentral apex, and fine interstitial riblets. E. bajula 

 — a porter bent under a load —is much depressed, broader behind 

 and tapering anteriorly, without interstitial riblets. 



Fissuridea corbicula Sowerby. 



Fissurella corbicula Sowerby, Thes. Conch., iii., 1862, p. 200, PI. 

 242, fig. 180. Fissurella lanceolata Sowerby, Thes. Conch., iii., 



1862, p. 200, PI. 242, fig. 182. 



In the British Museum, I found a tablet with four specimens, pro- 

 bably types, labelled "corbicula, Sow, Australia," on the under 



