CHAEACTEKS OF BECENT CEOCODILIA. 7 



country. I subjoin the chief points of interest which I nt)ti'd iu 

 my brief examination of this valuable specimen : — 



Inches. 



Tlie total length of the skeleton is 114 



„ „ „ skull 16 



Between the outer edges of the posterior ends of 



the quadj'ate bones 8f 



From the snout to the middle of the canine notch ... 2f 

 Transverse diameter of snout opposite 10th tooth ... 4^ 



Long axis of orbit 2| 



Short axis of orbit 1|- 



Interorbital space opposite the middle of the orbit If 



Anterior edge of the orbit from end of snout 10^ 



Syucipital* area in length, about 2^ 



„ „ in breadth anteriorly 3|- 



,> „ „ posteriorly 4 



Supra-temporal fossae, wide ^ 



long If 



Least width of parietal -^ 



Total length of mandible 20| 



Its greatest depth 3 



Length of cervical region (or anterior 8 vertebrse) ... 10 1 



„ dorso-lumbar region 27 



jy SiXiCVcil jy '-^ tr 



Length of humerus 7-i 



„ ulna 5^ 



„ fore foot, extreme length 6 



„ femur 8^ 



„ tibia 6 



„ hind foot, extreme length 9| 



From the above measurements it -will be seen that the skull is 

 somewhat slender. Behind the canine groove it widens to the 

 tenth tooth, which is 5^ inches behind the end of the snout. It 

 retains about the same diameter to the twelfth tooth, and tlien 

 slowly vddens again, — a sudden increase in size, to the extent of 

 half-an-inch, taking place opposite the posterior margin of the 

 orbit, owing to the flanging-out of the jugal. On the whole, 

 however, there is a slow and even increase in breadth, from the 



* By tliis term I denote that squarisli flat area bomicled by the postfrontal 

 and squamosal bones laterally, by the occiput posteriorly, and by a line joining 

 the outer angles of the postfrontals anterio)-ly. 



