﻿2o Bulletin 21 138 



nine prominent, subequal ribs on each whorl ; spiral sculpture of 

 prominent threads, with one or two alternating, much finer 

 threads; outer lip thin, lirate within; canal long, nearly straight. 

 Length of decollate shell 54; of aperture and canal 29 ; greatest 

 width 16 mm. 



Chipola marls, Bailey's Ferry, Florida. 



Cornell University collection. 



Dedicated to Dr. Kindle of the U. S. Geological Survey. 



Siphonalia Kempi, n. s. 

 PI. V, fig. 5. 



Shell rather large, fusiform, with about eight shouldered 

 whorls. Longitudinal sculpture of ribs ; strongly nodular at 

 t'.ia periphery of the whorls, but all fade out immediately 

 above and below the shoulders except the final rib which extends 

 prominently almost to the base of the shell. Spiral sculpture of 

 threads which tend to alternate with finer raised lines. Outer lip 

 very strongly lirate within, the lirse usualty resembling strings of 

 very small beads. The spirals and internal lirse resemble those of 

 6". dilatata Quoy. Length of incomplete shell 65 ; greatest 

 width 33 mm. 



Apparently no species of Siphonalia or Chrysodomus have yet 

 been described from the Florida Tertiaries. This species is now 

 placed in Siphonalia because of the strong internal lirse not pres- 

 ent in Chrysodomus. Yet this has been done with hesitation 

 because of the present distribution of Siphonalia in Pacific and 

 Australian waters only. If the Florida shell is correctly placed in 

 Siphonalia, it is an added indication of the affinities of the Gulf 

 Tertiary fauna with that of the Pacific. 



Ghipola marls, Bailey's Ferry, Florida. 



Dedicated to Professor Kemp. 



Cornell University collection. 



Phos Watsoni, n. s. 

 PI. V, fig. 6. 

 Shell very small with five whorls of which the first three are 

 smooth, the remainder sculptured. Spiral sculpture of fine 



