Vol. 63.] SKELETON OF GONIOPHOLTS CRASSIDENS. 61 



VII. Measurements of the Type-Skulls of 



GONIOPHOLIS CRASSIDENS AND G. SIMUS, IN MILLIMETRES. 



G. crassidens. G. simtis. 



Length, articular end of quadrate to tip of snout 415 



Length, occipital condyle to tip of symphysis 544 



Breadth between extreme outer points of squamosals ... 205 149 

 Breadth of roof across posterior border of supra- 

 temporal fossae 258 



Do., anterior border 230 



Breadth between inferior-temporal arcades, across pos- 

 terior border of supratemporal fosste 339 



Breadth across anterior points of orbits 196 



Breadth between festoons 159 



Breadth between constrictions 64 



Longitudinal diameter of supratemporal fossae 90 44 



Transverse do 90 40 



Longitudinal diameter of orbits 67 46 



Transverse do 49 33 



Longitudinal diameter of posterior nares 50 44 



Transverse do 25 8 



Longitudinal diameter of palatal fossae 197 



Transverse do 70 



Length from angle of angular bone to tip of symphysis... 597 

 Breadth of mandibles across posterior end of posterior 



nares 330 



Do., posterior end of symphysis 108 



Greatest breadth of symphysial end of mandibles 142 



Length of symphysis 85 



Length along which splenials merge into symphysis 35 



Where the measurements are not stated, this omission is because 

 the corresponding portions of the skulls are either too badly pre- 

 served for accuracy, or are missing. 



VIII. Measurements of the more important Bones of the 

 Skeleton of G. crassidens, in millimetres. 



Antero-posterior diameter of odontoid bone 25 



Dorso-ventral do 49 



Antero-posterior diameter of centrum of axis 48 



Dorso-ventral do 30 



Length of coracoid 180 



Length of humerus 280 



Length of ilium 207 



Length of ischium 135 



Breadth of proximal end of ischium 70 



Breadth of distal end of ischium 105 



Length of femur 305 



IX. Concluding Remarks. 



In conclusion, I would observe that we have here a crocodile 

 in which the vertical elevation of the orbits is greatly more accen- 

 tuated than in the Teleosaurs or other Amphicoelians, and very far 

 removed from the everted orbits of the Procoelians. Their direct 



