60 Panama Shells. PURPURID.E. 



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. Nassa 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 bat 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 t ; length .88 inch ; breadth .63 

 inch ; length of spire .46 inch. 



