136 Panama Shells. MURICID.E. 



Cancellaria pulclira Miill. Synop. Nov. Test. Viv. p. 72. 1836. 



Sowb. Conch. 111. No. 39. pi. 13. f. 37. 1841, 

 Sowb. Thes. Conch, p. 451. No. 42. 



pi. 94. f. 41. 1848. 



Station. Sandy bottom in 8 to 10 fathoms water ; Cuming ! 

 Sowerby. 



Habitat. St. Elena ; Cuming ! Sowerby : also Miiller. 



Taboga; C. B .A.! 

 Two specimens were obtained. 



160. Cancellaria pygmaea. Nov. sp. 



Shell subovate, short ; pale wax color, with minute dark 

 brown dots on the ribs, and dark brown irregular rays on the 

 upper part of the last whorl ; with slender prominent ribs, 

 which are only nine in number on the last whorl, but are 

 crowded and numerous on the spire, and which are much 

 developed at the angle of the whorls ; with several fine raised 

 spiral lines, which are stouter on the summits of the ribs, and 

 crowded intermediate microscopic striae : apex subacute : spire 

 with the outlines rectilinear: whorls five, acutely shouldered, 

 with a broad concave area above, moderately convex below 

 the angle, with a well impressed suture : aperture triangular, 

 effuse below : labrum thickened by the last rib ; labium thin, 

 elevated : columella with two lamelliform slightly oblique plaits ; 

 umbilicus narrow, deep, bounded by an acute angle in the last 

 whorl. 



Mean divergence, about 100 ; length .33 inch ; breadth 

 .25 inch ; length of spire .15 inch. 



This species is allied to C. contabulata Sowb., and C. bicolor 

 Hinds. 



Station. Unknown. 



Habitat. Taboga ; C. B. A. ! 

 One specimen was found. 



