0. C. Marsh — New Belodont Reptile. 



61 



The genus is a distinct one, the characters now known separating 

 it widely from Belodon of von Meyer, from the Keuper of 

 WUrtemberg. This is indicated in figures 2 and 3, below. 



C3: 



Figure 1. — Diagram of skull of Diplosaurus felix, Marsh. 



Figure 2. — Diagram of skull of Rhyticlodon rostratus, Marsh. 



Figure 3. — Diagram of skull of Belodon Ka^^ffi, von Meyer. 



a, nasal aperture ; &, antorbital opening ; c, infratemporal fossa ; d, orbit ; oc, 



occipital condyle ; s, supratemporal fossa. 



Figure 1 is one-fourth, and figures 2 and 3 are one-eighth natural size. 



The diagram of the skull of Belodon shows that the supra- 

 temporal openings, characteristic of the true crocodilians, 

 are wanting, while in the genus Bhytidodon {Butiodon), they 

 are present, and in their usual position. The fluted teeth of 



