1889.] NATURAL SCIENCES OF PHILADELPHIA. 235 



5. Carotid canal small, sometimes very inconspicuous. 



6. Condyloid fissure concealed. 



7. Glenoid fissure extremely minute or absent. 



8. Bone of penis generally small and irregularly shaped." 



The same authority (pp. 144-5) gives the following skeletal and 

 dental characters of the Felidce: — 



1. The muzzle is short as compared with the cranium. 



2. The auditory bulla is much inflated, smooth and rounded, but. 



hardly shows any external sign of division. 



3. The bulla is more prominent towards its inner than towards its 



hinder border. 



4. There is an almost complete bony septum between the two 



chambers of the bulla, which are one behind the other. 



5. The bony meatus auditorius is short and neither produced ante- 



riorly nor inferiorly, neither is it imperfectly ossified below. 



6. There is no carotid foramen anywhere visible on the basis cranii. 



7. There is no alisphenoid canal. 



8. The palatine foramina are situated in the hinder half of the 



palate. 



9. The post-orbital processes are more or less strongly developed, 



sometimes enclosing the orbits completely. 



10. The paroccipital process projects only slightly as a rough tuber- 



cle beyond the bulla. 



11. The mastoid is rather prominent. 



12. The palate is very little or but moderately produced beyond the 



last molars. 



13. The pterygoid fossa is very small. 



14. Angle of mandible not greatly flattened beneath, and coronoid 



process high and inclined backwards. 



15. There is a short pollex with a claw not, or hardly, reaching to 



distal end of metacarpal II. 



16. The hallux is represented only by a rudimentary metatarsal 



bone. 



17. The ungual phalanges are greatly arched with a wide lamina to 



shelter the base of the claw, and except in Cyncelurus complete- 

 ly retractile. 



18. Humerus with an epicondylar foramen. 



19. Dorsal vertebrae 13 in number. 



20. Bone of penis small. 



21. v _l and J~ L not developed. 



