46 EIGHTEENTH ANNUAL REPORT ON THE STATE CABINET. 



No. 81. 



No. 82. Ichthyosaurus platyodon.'''^ This head, five feet in length, is the 

 largest which has ever been found of this huge fossil Enaliosaurian, or Marine 

 Lizard. The muzzle is entire, and armed with many score of formidable 

 teeth. The eye, seven and a half inches in diameter, is cased by an armor of 

 sclerotic plates, which protected it against the many injuries to which it was 

 subject in the fierce encounters in which the animal engaged. The original 

 head, which must have belonged to an individual over sixty feet in length, 

 was found in the beds of Lias, Lyme Regis, England. 



No. 83. Isotelus me gist us. '''^ This speci- 

 men, 22 inches in length, is a restora- 

 tion, by aid of actual fragments which 

 have been found. It shows well the head 

 and tail-shields, and the intervening 

 movable segments by means of which 

 the animal could fold or double its body 

 together. 



Lower Silurian: Cincinnati, Ohio. 



No. 84. 



Leytorhynchus giganteus.''* 



The muzzle, two feet long, of a 



huge Gavial-like Saurian. 



Miocene Tertiary: 



Sewalik hills, India. 



