290 



Annals of the Carnegie Museum. 



as is shown in the figures herewith given, passes by almost insensible 

 degrees into the surface of the adjoining parts of the scutes. 



An attempt has been made by comparison with the scutes as they 

 exist upon the back of recent crocodiles to ascertain the relative posi- 



Jmf* ■.:*H«fe«< 



Fig. ii. Cervical scute (-{'^-). 

 Dorsal view. a, anterior mar- 

 gin ; b, posterior margin. About 

 | nat. size. 



Fig. 12. Cervical scute (W). 

 Posterior view. /, left; r, right 

 side. About \ nat. size. 



tion of the scutes belonging to the specimen of Deinosuchus hatcheri, 

 but the result has not been wholly satisfactory to the writer. The scute 

 represented in Figs. 9 and 10 appears to undoubtedly correspond to 

 the internal right scute of the first row in the second cervical series, 

 and the scute represented in Figs, n-13 to be its immediate successor 

 in the second row of the same series. Fig. 14 represents what the 



Fig. 13. Cervical scute (j 6 /-). a, 

 front ; b, back. Right lateral view. 

 About 4- nat. size. 



4: 



Fig. 14. Cervical scute (-y^ 3 -)- 

 Anterior view, showing great relative 

 perpendicular height. About \ nat. 

 size. 



writer believes to be the left scute of the third cervical series. The 

 smaller scute represented in Fig. 16 no doubt belongs to the sacro- 

 caudal series, and the large broad scutes, of which there are several well- 

 preserved specimens, one of them shown in Fig. 15, can be referred 

 approximately to their places about the middle of the dorsal series. 



The scutes differ from those of all other crocodilia by their great 

 vertical thickness in comparison with their length and breadth. They 

 are not proportionally nearly as thin as those of any recent species, 

 and the writer cannot discover in the literature of the subject, nor has 

 he found in any of the collections at home or abroad crocodilian 



