518 University of Kansas Geological Survey. 



PLATE CXVI — Fig. 1, Inoceramus concentricus, n. sp., fragments of large 

 valve. 

 Fig. 2: Large figure, Haploscapha niobrarensis, n. sp.; left-hand lower fig- 

 ure, Inoceramus platinus; middle figure, Seipihla plana; right figure, 

 Inoceramus subconvexus. 



PLATE CXVTI. — Ostrea anceps, n. sp., interior view of type. 



PLATE CXV1II. — Fig. 1, Inoceramus subconvexus, n. sp., exterior view of 

 both valves. 

 Fig. 2, Inoceramus pennatus, n. sp., interior view of one valve. 



PLATE CXIX. — Fig. 1, Radiolites maximus, n. sp., fragment of large speci- 

 men. 

 Fig. 2. Serpula plana. 



PLATE CXX. — Fig. 1, Inoceramus triangulatus; fig. 2, Inoceramus pen- 

 natus, n. sp. ; fig. 3, Rostellites willistonii, enlarged. 



