180 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Explanation of Plates. 



Plate I. 



Fig. 1. Crocodilus cataphr actus, Cuvier. 28*25 ins. 

 Fig. 2. Crocodilus americanus, Schneid. 14 ins. 

 Fig. 3. Crocodilus uiloticiis, Laur. 28 ins. 



Plate II. 



Fig. 1. Osteohemus tetraspis, Cope. 22 ins. 

 Fig. 2. Alligator mississippiensis, Daud. 21 ins. 

 Fig. 3. Caiman sclerops, Schneid. 13*5 ins. 



All figures reproduced from life by photographs by 

 J. H. O'Connell. 



