360 APPENDIX. 



Mouth oblong, spread out twice as wide as the diameter 

 of the last whorl but one ; the pillar less arched, flattened. 

 The axis imperforated. 

 Throat silvery penrly, smooth. 

 Inhab. — Raine's Island. Cabinet of Mr. Cuming. 



Stomatella rufescens. 

 Marine Shells, Plate 2, /. 2. 



Shell suborbicular, rather depressed, brown. 



Spire, conical, rather acute. 



Whorls rapidly enlarging, rather convex, concentrically 

 striated with rather unequal acute spiral ridges, the upper 

 whorls with two or three of the ridges larger and higher 

 than the rest, the last with closer less raised ridges in front, 



Mouth oblong, two-thirds the diameter of the shell in 

 width, inner lip arched, edge crenulate. 



Axis imperforated. 



Throat silvery pearly, with a pale reddish edge. 



Inhab. — Raine's Island. Cabinet of Mr. Cuming. 



Leda chuva. 

 Marine Shells, Plate %f. 3. 



Shell ovate, convex, longitudinal, about half as long 

 again as high, pale olive, with paler zones, and covered 

 with regular concentric ridges, rounder in front, rather 

 produced and bent up behind, with the hinder slope 

 denned by a well-marked impressed groove, which inter- 

 rupts the concentric ridges. The lunule ovnte, lanceo- 

 late, concave, and regularly grooved. 



