18 TORINIA. 



at the periphery and above the sutiu'e ; margin of uml)ilicus 



slightly crenulated, umbilical wall with three spiral ribs. 



Alt. 13-18 mill. 



West Indies. 



T. Heherti, Pesh. ; T. cyclostoma, Ilanley ; T. cijlindracea, 



Dillwyn, are synon^'ms. 



T. CYCLOSTOMA, Mcnke. PL 5, fig. 83, 84. 



Sculpture as in T. cylindrica ; color greenish black, with 

 Interrupted white bands above the suture and on the periphery ; 

 umbilical wall with two or three spiral ribs. Alt. 13 mill. 



West Indies. 



T. ^thiops, Hanley, is a synonj^ra. 



This species differs from the preceding in coloring, but is 

 pei'haps only entitled to varietal rank. 



T. ^THTOPS, Menke. PL 5, figs. 85, 86. 



Shell globose, conic ; whorls longitudinally sulcate, spirally 



sulcate and ribbed, the three superior ribs the smallest ; color 



greenish black with interrupted white bands above the suture, 



on the periphery and on the rib below it, and a brownish white 



band in ithe aperture ; umbilical wall w^th two spiral ribs. 



Alt. 10 mill. 



West Indies. 



Easily known by the globose shape, the banding, the two 



ribs on the umbilical wall and the whitish band in the aperture. 



T. NUBTLA, Menke. PL 5, fig 86 a. 



Shell globose-conic; whorls eleven-ribbed, sulci punctate, 

 color whitish, the middle of the whorls with smoky brown spots ; 

 umbilicus moderate, umbilical wall with three or foui- spiral ribs. 



Alt. 10 mill. 



West Indies. 

 T. TROCHOiDEA, Desh. PL 5, figs. 87, 88. 



Shell conic; whorls longitudinally striated, spirally sulcate 

 and ten-ribbed, rib at the periphery elevated, very strong, gran- 

 ular ; color grayish white; margin of umbilicus crenulated, 

 umbilical wall with two spiral ribs, Alt. 20 mill. 



Manilla ; Society Islands. 



T. dealbata, Tlinds, is a sj-nonym. 



