182 Panama- ShelU. tbochid^. 



Mean divergence about 53?.;. length '.085 inch; breadth .05 

 inch ; length of spire .058 inch. 



• ■Station.-'— JJvikxio^n. 



Ha^itdti—'Pmaxda.; 0.*B. A.! 



4 specimens were found in the calcareous sand. 



254. €ing:ula (?) terebelluiu. Nov.sp. 



Shell 'subcylindri6': white :' with four very prominent com- 

 pressed acute spiral keels, of which two are seen op the spire : 

 apex subacute : .spire with, the outlines moderately curvilinear : 

 whorls six, ^lightly 9onvex, .with an .indistinct suture ; last 

 whorl small : aperture small, ovate,. acute above : labrum thin : 

 labium indistinct': umbilicus wanting. 



Mean divergence about. 28°;. length .08 inch; breadth .04 

 inch; length of spire .055 inch. 



• Station. Unknown. 



Hahitat. — Panama ; 0. B. A. I 



1 specimen was found in the calcareous sand. 



255. Cing-ula (?)'tnrrita. Nov.sp. 



Shell conic, elongate : white : with numerous prominent com- 

 pressed transverse ribs, which terminate a little above the su- 

 ture, where they are crossed by' a spiral taised line ; anteriorly 

 with two or three spiral ridges : ajpex acute :- spir© with the out- 

 lines nearly rectiUnear : whorls six, above abruptly shouldered, 

 planulate, with 'the suture io abroad groove, which is continued 

 along the periphery of the last whorl .: aperture small, ovate, 

 acute above, very slightly effuse : labrum thin : umbilical region 

 with a very minute indentation. 



Mean divergence about 30° ;' length .08 inch ; breadth .033 

 inch ; length of spire .024 inch. 



Station. — Unknown. 



