Catalogue of the Marine Shells of Victoria. 201 



Obs. — When the shell by its form gives evidence of having 

 developed on the outside of anothei- shell, the lamina is imbedded 

 much more deeply, the dorsal portion is brown in colour, and 

 often exhibits a rude series of ridges radiating from the apex, but 

 not present on the nucleus ; these features are not discernible 

 when the habitat is inside another shell. Tryon's reiuarks on C. 

 monoxyla are " this species does not appear to have any special 

 characteristics ; a C. unguiformis growing on the outside of a 

 narrow shell would be apt to take on the same form ;" from the 

 large series before us we have no douV)t that this view is correct 

 and have therefore included it as above. 



Crepidula immersa, Angas. 



1865. Crypta immersa, Angas (non Adams and Reeve). 



P.Z.S. Lond., p. 57, pi. 2, f. 12, also p. 174, 



No. 118. 

 1886. Crepidula immersa, "Watson. Chall. Zoo)., vol. 



XV., p. 460, No. 4. 



1886. Crepidula onyx, Tryon (non Sowerby). Man. 



Conch., vol. viii., p. 128, pi. 38, f. 46, 47. 



1887. Crepidula immersa, Wilson. V.N., p. 116. 



Hab. — Port Phillip (J. B. Wilson) ; off East ^loncoeur Island, 

 Bass Strait (Challenger) ; Puebla Coast. 



Obs. — Tryon unites many species as being C. onyx, Sowerby, 

 we cannot follow him. 



Family Turritellid.e. 

 Genus Tuppitella, Lamarck, 1799. 

 Turritella australis, Lamarck. 



1839. Turritella australis, Lamarck. Anim. S. Vert. (3rd 

 ed. Deshayes and Edwards), vol. iii., p. 592, 

 No. 12. 

 1843. Turritella australis, Lamarck. Anim. S. Vert., 

 vol. ix., p. 258. 

 Turritella australis, Kiener. Icon. Coq. Viv. p. 36, 

 pi. 4, f. 3. 

 1875. Turritella granulifera, T. Woods. P.R.S. Tas., 

 p. 143. 



