47 



VMI-. MTMtA, Vi-rrill. 



Thinner, more t rail-llKM-Ilt , With 



-culpt iir*', t he >pi r;il lines on ' 



and closer. 



CIM \. Yen-ill. I 71. 



ilptmv more de! :iMefs liner and 



closer, basal lines liner and more numerous than in tin- pre- 

 ceding sp Iso narrowly umbilicated. Lcnu'tli. rr> mill. 

 OH . fland, \-2'M), 11U7 .-in. I -w.i fins. 



S. KI.' PI. 8, fi-. T-"). 



rinl)ilic:iti'l, sliDi-lcr, more jjlohosi- th.-in ,S. c.rilhnn, lip fissure 

 close to the suture, eolumclla {jrotlin-ed helo\v. jijirrtiiru broadly 

 truiK'ately sinuous on the lase. Length, '.\ mill. 



Jt'iij of r>i 



S. TIIU'AHIVATA, JeHVe\ S. V\. S, fl^. 70. 



rmi)ilicus nan-o\v, slightly keel-mar^'ined ; lepivs>cl-^lobose, 

 convexly shoiilderi'd above, then three-keeled ; lip fissure wide 

 and shallow, aperture narrowly produced at the base; white. 



Length, -2 mill. 



Off Cape.Verd Is.; 1192 fins. 



Xot adult. 



\ICA. Watson. PI. s, i'm-s. 77, 78. 



dmbilicated, depi-essed trochiform, with two strong spiral 

 ridges :iud a numl)er of basal stria. 1 most distinct around the 

 outer margin, and surrounding the umbilicus. Ditim. G mill. 



W. of Azores ; West In 



S. THI8P1N08A, Wtitson. PI. 8, figs. 79, 80. 



T'mbilieatt-l. elevated trochiform, suture deej), with three 

 rather clo-e tubercular spiral rid-_ with numerous spiral 



siriji-, the outer one much more distinct. Diam. 3'75 mill. 



Pemambuvo. 



S CAIIINATA, JellVeys. PI. S. S.3. 



Vinbilicatrd, rat', '111, with peripheral carina, 



showing at tli- .' the spire-whorN. arlv smooth. 



l)i:im. 4 mill. 

 .\". AH 



