78 



PKOCEEDnfGS OF THE GEOLOGICAL SOCIETY. [DeC. 19, 



from the atlas to the anterior margin of the sacrum, is 4-5 in. 

 From the front margin of the sacrum to the end of the undisturbed 

 part of the tail is 2 inches. To this total of 8-15 in. it is proba- 

 ble that 2 inches more, at least, must be added for the distal moiety 

 of the tail, which would give the entire animal a length of not less 

 than between ten and eleven inches. 



The fore limb had a length of not less than 2| inches, while 

 the hind limb, when extended, must have measured fully 3 inches. 



Figs. A-E. — Outline- sketches of parts of the Skeleton of Telerpeton 

 Elginense, Mantell. (Natural size.) 



A. A side view of the skull. 



B. The anterior teeth of the upper and lower jaws. 



C. The left hind foot. 



D. The right scapula and coracoid. 



E. The left half of the pelvis. 



The skull is broad, its occipital margin measuring 1-5 in. The 

 cranium retains this width for about ihalf its length, and then 

 rapidly narrows to the snout, with a contour which is at first con- 

 vex, and then bcomes concave, until it terminates in the roundly 

 truncated snout, which exhibits the remains of two cylindrical 

 incisor teeth, placed side by side and close together (fig. A). 



The posterior margin of the skull is nearly straight, but presents 

 an obtuse angle directed backwards in the middle line. The pos- 

 tero-lateral, or parietal, angles of the skull are produced directly 

 outwards, instead of backwards, into short and broad processes, 

 which become connected with the strongly curved squamo-jugal 

 arcades, the inner faces of which were concave and directed some- 

 what downwards. 



