PLATE IX. 



PAGE 



Fig j CALLIANASSA STIMPSONII. 



Natural size. 



a. Three segments of the abdomen, from Clayton. 



b. A fragmentary hand from Chico Creek. 



c. Part of a hand, from the same specimen as Fig. . 



Fi 2 . BELEMNITES IMPRESSUS. 



Natural size. 

 2 a. A section across the middle of Fig. 2. 



NAUTILUS TEXANUS ? 

 | Natural size. 



a. Side view. 



b. Front view. 



