[ 155 ] 

 4. Truncatella pulchella, PfeifFer. 



Plate 18, figures 34, 35, 36. 



Cylindrical, rimate, tliin, pellucid,with thread-like, low, distant 

 ribs, frequently evanescent ; whorls 4-4J, gradually increasing 

 in size ; the last generally smooth below the middle, base com- 

 pressly carinate ; aperture subvertical, ovate, lip simple, but 

 somewhat expanded. Yellowish or reddish horn color. 



Length 4-5-5, diam. 1-5-2 mill. 



Florida. 



5. Truncatella Californica, Pfeiffer. 



Plate 18, figure 37. 



Cylindrical, imperforate, thin, translucent, slightly striate ; 

 six to ten whorls, quite convex, the last one not carinate below ; 

 aperture vertical suboval, lip simple, continuous, slightly expan- 

 ded. Amber color. 



Length 4-6, diam. 1-6 mill. 



San Diego, California. Coli. '«, 4,>-': . 



