312 PYRAMIDELLA. 



Section MORMULA, A. Adams, 1863. 

 P. ACLTS, A. Ad. PL 74, fig. 34. 



White, shining ; whorls 8, somewhat flattened, longitudinally 

 plicate, the interstices smooth; lip dilated, columella somewhat 

 thickened. Length, 7 mill. Philippines. 



P. ELONGATA, Pease. PL 74, fig. 35. 



Longitudinally closely ribbed, spirally striate ; whorls 14, 

 convex, with a simple varix on each whorl, suture well impressed ; 

 columella twisted below, lip widely varicose on its outer edge, 

 strongly lirate within. Length, 19 mill. 



Paumotus (Pease); Viti Is. (Garrett). 



P. GRANDIS, Ads. and Reeve. PL 74, fig. 36. 



Longitudinally costate, the last whorl smooth below, white. 

 Length, 15 mill. Eastern Seas. 



P. VARTCOSA, A. Ad. PL 74, fig. 35 a. 



Light-brownish, with pale chestnut bands; whorls flattened, 

 varicose, closely longitudinally costate, crossed by spiral lirae, 

 the interstices with spiral raised lines. Length, 1 inch. 



Eastern Sea*. 

 P. CORNELLIANA, Newcomb. PL 74, fig. 37. 



Solid, white, shining, lightly longitudinally costate, and spirally 

 striate ; whorls 8, rounded, the 4th and 7th with an obscure varix ; 

 lip thickened, indistinctly bilabiate. Length, 10 mill. 



Honolulu, Sandwich Is. 



Unfigured and Undetermined Species. 



P. AMBIGUA, Gould. = Rissoina. 



P. EGREGIA. A. Adams. Philippines. 



P. MACANDR^EA, A. Adams. Gulf of Suez. 



P. RISSOINA, A. Adams. Japan. 



Section STYLOPTYGMA, A. Ad., 1860. 

 P. TYPICA, Tryon. PL 74, fig. 38. 



White, shining, subpellucid, spirally striate ; whorls flattened, 

 the last with a central sulcus, apex suddenly acuminated ; colu- 

 mella posteriorly uniplicate. Length, 8 mill. 



Ins. Bohol, Philippines. 

 The name is substituted for P. sty Una ^ A. Ad., preoccupied. 



