A CATALOGUE OF AUSTRALIAN FOSSILS. 25 



(Gasteropoda.) (Silurian.) 



Genus and Species. 



Strat. 

 Subdivision. 



References. 



Localities, &c. 



Genus Helicotoma, Salter, 1859. (Geol. Survey, Canada, Dec. i. pp. 10 and 13.) 



Prosobr.-Ianthinidce. 



H. Milligani, Salter 

 ' (ms.). 



H. pusilla, Salter 

 (ms.). 



L. SU. 

 L. Sil. 



Bigsby, Thesaurus Sil. 1868, p. 154. 



Tasmania West. 



Genus Holopsea, Hall, 1847. (Pal. N. York, i. p. U9.)—Prosobr.-?HaUotid(e 



or Litorinidcs. 



H. Mumia, Salter | L. Sil. 

 (ms.). I 



Bigsby, Thesaurus Sil. 1868, p. 155. I Tasmania West. 



Subgenus Hormotoma, Salter, 1859. (Geol. Survey, Canada, Dec. i. pp. 18 and 22.) 



Prosobr.-Pleurotomariidce, 



H. nerinasa, Salter 



(ms.). 

 H. usitata, ,, „ 



L. Sil. 



Bigsby, Thesaurus Sil. 1868, p. 156. 



Tasmania West. 



Genus Murchisonia, D'ArcMac and De Verneuil, 1841. (Bull. Soc. G^ol. France, 

 XII. p. 154.) — Prosobr.-Pleurotomariidce. 



M. Franklini, Salter 



(ms.). 

 M. mimetica, ,, ,, 



L. Sil. 



Bigsby, Thesaurus Sih 1868, p.l58. 



Tasmania West. 



Genus Omphalotrochus, Meek, 1864. (Geol. Survey Eeport, California, i. Pal. 

 p. 16.) — Prosobr.-Turbinidce. 



0. Clarkei, de Ko- I U. Sil. (Lud- I *Foss. Pal. Nouv.-Galles du Sud, I Yass, N. S. Wales, 

 ninck. \ low). j 1876, p. 41; Atlas, t. l,f. 7. | 



Genus RapMstoma, Hall^, 1847. (Pal. N. York, i. p. 28.)— Prosobr.-Ianthinidce. 



E. feterna, Salter I L. Sil. I Bigsby, Thesaurus Sil. 1868, p. 165. I Tasmania West. 



(ms.). 11 1 



Genus ScaliteS (Conrad ms.), Emmons, 1842. (Geol. N. York, pt. 2, p. 3122.) 



Prosobr.-Ianthinidce. 



S. Australis, Salter I L. Sil. 

 (ms.). I 



Bigsby,ThesaurusSil.l868,p.l65. I Tasmania West. 



Genus Trochonema, Salter, 1859. (Geol. Survey, Canada, Dec. i. pp. 24 and 27.) 

 Prosobr.-LitorinidcB, 



T. Bigsbyana, Salter I L. Sil. 

 (ms.). I 



Bigsby, Thesaurus SiL 1868, p. 166. I Tasmania West. 



1 According to Salter Baphisfoma, Hall, Helicotoma, Salt., and Ophileta, Vanuxem, are sub-genera 

 of Conrad's genus Scalitcs. 



2 Figured {S. angulatns, Con. ms. ) but not described. 



E. 4 



