124 Proceedings of the Royal Society of Victoria. 



1876. Trochus extenuatus, Fischer. Id., p. 330, pi. 103, 



f. 1. 

 1889. Monodonta (Austrocochlea) constricta, Tryon. 



Man. Conch., vol. xi., p. 90, pi. 20, f. 6, 7. 

 1889. Monodonta (Austrocochlea) zebra, Tryon. Id., 

 pi. 20, f. 20; var. porcata, pi. 20, f. 10, 11; 

 multicarinata, pi. 20, f. 12. 

 Hab. — All rocky portions of coast line. 



Obs. — This is one of the commonest, if not the commonest 

 species inhabiting our coast, and has also a very wide Australasian 

 range. In consequence of its enormous numbers, very consider" 

 able variation in habit, keeling, and colouring, may be noted, but 

 there is usually no difficulty in identifying the species. 



Austrocochlea striolata, Quoy and Gairaard. 



1828. Trochus concamerata, Wood. Index Test. Sup., 



pi. 6, f. 35. 

 1834. Trochus striolatus, Quoy and Gaimard. Astrolabe, 



vol. iii., p. 253, pi. 63, f. 18-22. 

 1851. Labio fuligineus, Adams. P.Z.S. Lond., p. 180. 

 1876. Trochus striolatus, Fischer. Icon. Coq. Viv., p. 



187, pL 61, f. 3. 

 1886. Trochus fuligineus, Watson. Chall. ZooL, vol. xv., 



p. 67, pL 4, f. 11. 

 1889. Monodonta (Neodiloma) striolatus, Tryon. Man. 

 Conch., vol. xi., p. 99, pi. 19, f. 97, 98. 

 Hab. — Port Phillip ; Point Nepean to Flinders ; Western 

 Port ; Puebla, and a few other rocky parts, but much less 

 common than the preceding species. As no description was 

 given of T. concamerata. Wood, we have followed other concho- 

 logists in not adopting that name. 



Diloma, Philippi, 1845. 



DiLOMA ODONTIS, Wood. 



1828. Trochus odontis. Wood. Index Test. Sup., p. 17, 

 pi. 6, f. 37. 

 n846. Trochus odontis, Philippi. Conch. Cab., p. 1-44:, 

 No. 174, pi. 24, f. 7. 



