335 S''^- Maurice and Claiborne Pelecypoda 235 



PLATE 34 



Figure Page 



I. Crassatellites texanus Heilp., 30mm 97 



North Boundary of Murchison Headright, Tex. Tex. State 

 Museum. 



2-3. Crassatellites antestriatus Gabh, 45 mm 98 



Ivce Co., Tex. Singley's Coll. 



4. '^ Crassatellites rkornboideus''^ Conrad, 50 mm 99 



Orangeburg Dist. ? S. C. 



5-6. Crassatellites clarkensis, Dall, St. Maurice, La 100 



Fig. 5, 22 mm. 



6, (right) 25 mm. 

 ^ ^, (left) 20 " 



7-10. C. clarkensis \ax, ferrocarolinus, n. var 100 



Fig. 7, 25 mm., showing well developed umbonal liration. 

 Three miles W. N. W. of Orangeburg, S. C. 



8, (right) 22, (left) 36 mm. Three miles W. N. W. of 

 Orangeburg, S. C. 



9, 36 mm., exterior of fig. 8. 



10, 35 mm., nasute form, Orangeburg Dist., S. C. 



