animals observed before a decided opinion can be expressed on the species of 

 this genus. Some reduce all the forms to one or two species. Dr. Gray 

 conjectures that two, /. fragilis and /. prolongata, are the sexes of one 

 species." — Carpenter, Cat. Maz. Shells, p. 185. 

 Ianthina bipartita. Gray ? 



Cbepidula ? East Coast. W. F. Petterd. 



Ceepidula ! Frederick Henry Bay. W. F. Petterd. 



FissuRELLA scuTELLA. Gray, Brit. Mus. Cat. Fissurella, iVo. 42. A 

 trapeziform, ovate, flattened, concentrically ridged shell ; pink, with brown 

 rays. Somewhat common in S.A. Long. 29, lat. 23. 



Fissurella australis. Krauss, Sudafrk. Moll., p. 67, pi. 4, Jig. 10. 

 Deeply nodosely latticed with ribs and riblets, orifice small, ovate, obscurely 

 blotch rayed with Hght rust brown. Long. 18, lat. 14, alt. 8. Rare, E. 

 only ; but it occurs in N.E. Australia. Described by Krauss as from Natal, 

 but for the reasons aheady given (vide Purpura textilosaj his specimen 

 probably came from Australia. 



Fissurella nigrita. Sowerhy. North Coast and Blackman's Bay. W. F. 

 Petterd. A small, black, flattened shell. 



Fissurella concatenata. Crosse, Jour. Conch, 1863. Long Bay, Rev. 

 H. D. Atkinson ; N.W. Coast, R. Gunn ; George Town, W. F. Petterd. 

 Deeply pitted all over with hexagonal markings. Rare. 

 Macroschisma tasmanica. Tenison- Woods, var. a Rosea. 

 Emarginula EMARGiNATA. Blainville, Malac, p. 4:8, Jig. 2, E. australis, 

 oj Quoy. A coarsely sculptured white shell with very prominent curved 

 anterior ribs. Common. V. The largest Tasmanian species. Long. 23, 

 lat. 18, alt. 14. 



Emarginlla rugosa. (Quoy ?) Sowerhy, Thes. Conch., Fissurellidce 

 Emarginata, sp. 4^, Jig. 72. White, rayed with nodose unequal ribs, the 

 fissural one prominent, fissure short and narrow. Long. 16, lat. 12, alt. 8. 

 Not common. 

 Emarginula Tasmania. Sowerhy, loc. cit. Variety of preceding. 

 Emarginula tenuicostata. Sow. loc. cit. Another variety. 

 ScuTUS elongatus. Blainville, Bidletin des Sciences Nat. Feb., 1817, p. 

 28 ; Parmophorus australis of Lamarck. A large white shell with orange 

 markings on the inside enamel. Somewhat common ; S.A., S.E.A. Long. 

 110, lat. 55. The animal larger than the shell ; black, with long tentacles, 

 whence it is known as the " Elephant " by sea side visitors. 



TuGALiA australis. Soto, Thcs., Fissur., pi. 14, Jig. 18. Whitish, 

 oblong, depressed, with very fine ribs, and minute anterior notch. Long. 17, 

 lat. 10. Rare, S.E.A. The specimens of this shell I have seen from 

 Sydney, Victoria, etc., have been identified with T. ossea, Gould, do not 

 correspond with Gould's description, which, moreover, he refers to N. 

 Caledonia, Fiji, etc. I, therefore, propose the name of Tugalia australis. 

 Tug ALIA TASMANICA. Tenison- Woods. 



Acm^a septiformis. Quoy, Voy. de VAstrol., pi. 71, Jigs. 43, 44. Oval, 

 gray, spotted with pale oHve and dark brown margin within. Long. 15, 

 lat. 11, alt. 5. Somewhat common. S.E.A. 

 Acm^a marmorata. Tenison- Woods. 

 ACM.EA CRUcis. Tenison- Woods. 



AcMMA costata. Sow. Zool. Voy. Beagle, (so in Angas' list, which I 

 have not been able to verify). My own idea is that the shell is different, 

 and was never described until Angas himself did so as Patella alticostata. 

 (See Proc. Zool. Soc, 1865.) Solid, depressed, corroded, very irregularly 

 ribbed, often transversely barred in the interstices. One of the commonest 



