TRIFORIS. 185 



T. OBESULA, Jouss. PI. 38, fig. 27. 



Whorls 13, brownish; becoming yellowish at the tip and base* 

 with three series of spiral nodules, of which the middle one is minute, 

 the body whorl with five series of nodules. Length, 4 mill. 



New Caledonia. 

 T. PERLATUS, Issel. PI. 38, figs. 28, 34. 



Shining, whitish, whorls 12-13, with two spiral series of equal 

 nodules, body whorl with three additional smaller anterior series of 

 nodules. Length, 4-5 mill. 



Red Sea. 



Narrower than T. atomus, but similarly ornamented. T. Servaini, 

 Jouss. (fig. 34), has a general coloring of dark yellow, but seen 

 through a glass it has a yellow band and a white one on each whorl, 

 the latter with dark spots between the nodules ; it comes from the 

 Red Sea also, and will, I think, prove to be a better colored speci- 

 men of the above. 



T. CHAPERI, Jouss. PI. 38, fig. 35. 



Solid, white, yellowish brown at the base, whorls 12-1 4, biseriately 

 tuberculated, last whorl with three series, suture linear. 



Length, 4 mill. 



Isle of Bourbon. 

 T. XYSTICA, Jouss. PI. 38, fig. 36. 



Shell chocolate color, the tubercles whitish ; whorls 14-15, flat- 

 tened, with channeled suture, and three spiral series of tubercles, last 

 whorl with five series. Length, 13 mill. 



Madagascar. 

 T. ROSSITERI, Jouss. PL 39, fig. 39. 



Whorls 14, flattened, with channeled suture, reddish yellow, with 

 four spiral series of sharp whitish granules, eight series on the body 

 whorl. Length, 5-6 mill. 



New Caledonia. 



T. ^EGLE, Jouss. PL 39, fig. 40. 



Yellowish ash color, tubercles paler ; whorls 15, biseriately tuber- 

 culate, last whorl with three additional, smaller, anterior series. 



Length, 5 mill. 



New Caledonia. 

 T. CNODAX, Jouss. PL 39, fig. 47. 



Rather solid, yellowish, with the tubercles red ; whorls 15, sub- 

 distantly biseriately sharply tuberculated, the body whorl with three 

 series. Length, 6 mill. 



N. Caledonia. 



