60 Panama Shells. puRPURiDiG. 



mate but not obsolete on the last part of the last whorl ; with 

 many spiral raised lines, with the intersections subnodulous : 

 spire with the outlines nearly rectilinear : apex acute : whorls 

 seven, slightly convex, with a distinct suture ; last whorl with 

 a minute spiral canal anteriorly : aperture subelliptical : la- 

 brum subacute, thickened with a stout varix, within crenu- 

 lated coarsely and unequally : labium a little thickened, not 

 appressed : with a deep notch. 



Mean divergence about 50° ; length .38 inch : breadth .21 

 inch ; length of spire .23 inch.- 



Var. « ; smaller (.23 inch long) ; with the lower fascia 

 much broader, and darker anteriorly. 

 Station. — Unknown. 



Habitat.— Panama. ; (var. «) ; E. Jewett ! Gould Mss. 

 Panama ; C. B. A. ! 

 We obtained 4 specimens of the type, and one of the va- 

 riety. 



45. Xassa corpulenta, Nov. sp. 



Shell ovate conic, very robust : spirally banded with white 

 and brown, sometimes mostly white, sometimes mostly brown, 

 with a broad white stripe below the middle of the last whorl, 

 white in and about the aperture : with, on each whorl, about 

 eleven narrow ribs, which are traversed by spiral raised lines: 

 spire with the outlines rectilinear or slightly concave : apex 

 acute : whorls nine, moderately convex, with a well impressed 

 suture ; last whorl very large and ventricose, spirally canali- 

 culate anteriorly : aperture subelliptical, contracted : labrum 

 subacute thickened with a very stout varix, within coarsely 

 sulcate : labium wrinkled, a little thickened but not appressed : 

 notch large and deep. N. f estiva Powis must resemble this 

 shell, and possibly may be identical with it. 



Mean divergence about 46°.; length .88 inch ; breadth .63 

 inch ; length of spire .46 inch. 



