70 Annals of the Carnegie Museum. 



large size, and the coronoid process is heavy and nearly vertical in 

 its position. The teeth, especially the molar-premolar series, are 

 relatively blunt. The third incisor is very large, the canine is short, 

 robust, and oblong in cross-section. . P-i- is one-rooted and its posi- 

 tion is postero -internal from the canine. P^ is heavy and has a 

 simple crown. P^ is nearly twice the size of the tooth preceding it, 

 and has a small posterior basal cusp and an enlarged swelling of the 

 cingulum on the anterior portion of the tooth. The carnassial tooth 

 is massive, with a prominent deuterocone and a heavy posterior 

 blade. The diameters of M^ are small antero-posteriorly and large 

 transversely ; the internal and external borders are equally broad. 

 The mandible is very robust and the posterior heel of the lower car- 

 nassial tooth is small. The sagittal crest is well denned, the orbit is 

 large, the mastoid process relatively large, and the external auditory 

 meatus is of moderately large size. 



The lumbar vertebrae, the fragments of limb and foot bones, which 

 were found associated with the skull and jaws above described, are 

 unmistakably those of a carnivore, and presumably they belong with 

 the same individual. The anapophyses and the interlocking of the 

 zygapophyses of the lumbars are similar to those in Hoplophoneus and 

 the Felinse generally. 



2 



Fig. 18. Palate view of ALlurocyon brevifacies Peterson. I. Superior dentition. 

 2. Inferior dentition, \ nat. size. Type, No. 1590. 



A fragment of a pelvis indicates a heavy pubis which projects well 

 downward and would, if complete, give to this region of the pelvic 

 cavity a great vertical depth. In front of the acetabulum the ilium 

 has a short constricted area, and the contact for the sacrum is well 

 back, like that in the bear. The head of the femur is on a rather 



