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 2£ miles east of Newton. 



Geological horizon. — Lower Claiborne Eocene. 



Type. — Texas State Museum. 



Genus CYPRJEA. 

 Cyprsea 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 strise; 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 striie very fine over the plicse 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 Milam-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, 



