78 PROCEEDINGS OF THE ACADEMY OF [1895. 



Ranch, Robertson Co. This species is also found in various places 

 in Bienville Parish, La., and in Mississippi 2J miles east of Newton. 



Geological horizon. Lower Claiborne Eocene. 



Type. Texas State Museum. 



Genus CYPR.ZEA. 

 Cypraea kennedyi nov. sp. PI. 8, fig. 12, a. 



Specific characterization. General form and size as indicated by 

 the figures; oral or front surface strongly ribbed transversely, ribs 

 tending to divaricate; mouth moderately wide above, broad submedi- 

 ally and contracted below with one plait-like fold on either side; 

 back smooth except near the margins where there are strong radi- 

 ating lines. 



Locality. Dr. Collard's farm, Town Branch, Sparks Headright, 

 Brazos Co., Tex. 



Geological horizon. Lower Claiborne Eocene. 



Type. Texas State Museum. 



Genus RIMELLA. 

 Rimella texana nov. sp. PI. 9, fig. 1. 



Specific characterization. Size and general form as indicated by 

 the figure; whorls 11 ; 1 exceedingly small, smooth; 2, 3, 4, 5 smooth 

 and polished; 6, 7 faintly and finely cancellated; 8 with small longi- 

 tudinal plicae crossed by minute spiral striae; 9, 10 more strongly 

 plicate longitudinally, plicae most strongly developed midway of the 

 whorls; body whorl plicate superiorly though not immediately below 

 the suture; spiral striae very fine over the plicae but coarse above 

 and very coarse below ; outer lip acute below, thick and reflected 

 above, medially forming a right angle ; inner lip well defined, 

 uniting with the outer above and forming a canal that passes up the 

 spire rather more than half-way to the apex, recurving descends the 

 width of a whorl or two ; columella long and pointed, deflected back- 

 ward. 



Localities. Colorado River, Devil's Eye, Bastrop Co.; Brazos 

 River, about one mile below the Mi'lam-Burleson County line; Mos- 

 ley's Ferry (Singley' s collection) ; Collier' s Ferry, Burleson Co. , Tex. 



Geological horizon. Lower Claiborne Eocene. 



Type. Texas State Museum. 

 Rimella texana, var. plana nov. var. PI. 9, fig. 2. 



In this form, which is probably only a variety of the foregoing, 



