PLATE XIX. 



PAGE 



Fig. 1. Crustacean. Indet. 127 



Fig. 2 «— -f. Crustacean claws. Indet. 127 



Fig. 3. Callianassa Stimpsonii. 127 



Fig. 4. Ptiloteuthis foliatus. 128 



Fig. 5 a. Section of body volution of Ammonites Brewerii. 130 



5 h. Septum. 



Fig. 0". 6 a. A. Brewerii. Young. 130 



Fig. 7. A. Traskii. Young. 131 



7 a. Outline of body volution. 



7 b. Still younger specimen. 



