TROPHON. 147 



not exhibit the internal denticles of the outer lip, but an older 

 stage (M. Boivinii, Kiener, fig. 353) has these well developed. 

 St. Elena, Panama. In sandy mud, 8-12 fathoms, Broderip. 

 Troschel includes it in the enumeration of the Tschudi collec- 

 tion from Peru, and figures the operculum, which is murieoid.* 



T. WAHLBERGI, Krauss. PI. 31, fig. 315. 



Length, 1*33 inches. 



Natal Coast, So. Africa. 



T. DUODECIMUS, Gray. 



Ovate, fusiform, pale yellow, longitudinally costate; spire coni- 

 cal, acute ; whorls rather rounded ; last whorl about half the length 

 of the shell, with twelve concentric rounded ribs and a central 

 white band, with some spiral ridges in front crossing the varices, 



and closer over the short, open canal. 



New Zealand. 



1 do not know this species: Hut-ton, in his catalogue of New 

 Zealand shells, confesses his inability to determine it. 



T. STANGERI, Gray. PI. 38, figs. 363, 365. 



" Small, ovate, fusiform ; brown. ; regularly and closely concen- 

 trically striated ; spire acute, rather shorter than the body-whorl ; 

 the upper whorl with two, and the body -whorl one (what ?) ; with 

 eight continued, distant, spiral ribs, the hinder ones farthest apart, 

 and most raised ; the mouth dark brown ; the canal short, open ; 



axis '75 inch.'' 



New Zealand. 



To this species Hutton refers the Mure.r liratus of his cata- 

 logue (not of Gmel.) as well as his FUBUK varius. Dr. von Mar- 

 tens has identified the liratus with T. ambiyuus, Philippi (fig. 

 365), and Hutton thinks Fusus cretaceus, Reeve (fig. 363), may 

 be the same. Both these species are very closely allied to T. 

 xanthostoma, Brod., from Chili. 



T. SPIRATUS, Adams. PI. 33, fig. 354. 



Very like T. cretaceus, Reeve, and may be the young of that 

 species. Lip slightly striate within ; operculum with terminal 



nucleus. Length 46, diam. 23 mill. 



New Zealand. 



Archiv. fur Naturg., i, 1852. 



