484 Mr. E. Etheridge, Jun., on Gasteropoda. 



Section (c) ( ), M'Coy, 1853. 



Types : E. rugosus. Sow. ; E. discors, Sow. 



= Straparollus (pars), D'Orbigny, 1850 ; Enomphalus (pars), Eich- 

 wald, 1860 ; E. discors group, Meek and Worthen, 1800. 



Species described by Phillips, none. 



Section (d) Omphalotrochus, Meek. 

 Type 0. Whitneyi, Meek. 



= Enomphalus (pars), Phillips, 1836; idem, J. de C. Sowerby, 1844. 

 Species described by Phillips — Cirrus tabulatus, Phill. 



Genus Phanerotinus, J. de C. Sowerby, 1843. 

 Type P. crtstatus, Phill. 

 = ? Ecculiomphalus, Portlock, 1843 ; ? Serpularia, F. A. Romer, 1843. 



Species described by Phillips — Euomplialus cristatus, 

 Phill. 



Various other generic names have at times been proposed 

 for Enomphalus j or for sections of the genus, such as Oma- 

 laxis, Deshayes, Bifrontia, Deshayes * ; but as these are all 

 posterior in date, or otherwise ineligible, I shall not now 

 refer to them. 



13. Turbo tiara, Sowerby (Phillips, p. 226, t. 13. fig. 9). 



This is a fine example of the species, but much decorticated 

 and not in a good state of preservation. The figure is a tole- 

 rably good representation. I have compared the Gilbertson 

 specimen with that contained in the " Mineral Conchology 

 Collection." It is the 



Turbo tiara, Sow. Min. Conch. 1827, v. p. 97, t. 551. fig. 1 (2 figs.) ; 



Phillips, loe. cit. 

 Platyscliisma tiara, M'Coy, Brit. Pal. Foss. 1853, fasc. 3, p. 535 ; 



Morris, Cat. Brit. Foss. 1854, ed. 2, p. 260. 

 Turbo tiara, Brown, Foss. Conch. 1849, p. 73, t. 38. fig. 32 ; Bronn, 



Index Pal. Noinen. 1848, p. 1326. 



14. Turbo semisulcatus, Phillips (p. 226, t. 23. fig. 10). 



The type specimen of this so-called species is a beautifully 

 preserved little shell ; and the figure is good, except that some 

 matrix remaining about the aperture is not represented. I 

 quite agree with Prof, de Koninck in considering this only 

 a variety of the next species, Turbo biserialis. The elongated 



* Descr. Coq. Foss. Env. Paris, ii. p. 221. 



