allkn: dogs of the amkhkax aucjkiginks. 



501 



on a flat surface. The palate of the Pug-nosed Dog, makes an angle 

 with the table of about 27° against about 15° in the case of the longer- 

 nosed breed. The same rugose surface of the brain-case, the heaviness 

 i>f hone and the thickened prominences at each side of the posterior 

 narial openings, characteristic of the Inca Dog, are seen in this breed 

 as well. 



No limb-bones have been obtained that can be referred to this dog, 

 but it is likely that they were short and thick like those of the related 

 breed. 



The following table gives dimensions of the six skulls in the U. S. 

 X. ]\I. and is interesting for comparison M'ith those of the Short-nosed 

 Indian Dog. 



Measurements of the Skulls 



U. S. N. M. 



172,885 172,883 172, 



172,887 172,884 176,307 



Occipitorostral length (excluding 



incisors) 



Basal length 



Palatal length 



Orbit to tip of premaxillary 



Upper tooth-row 



(alveoli) 



Front of canine to back of molar ^ 



(crowTis) 



Front of canine to back of molar ^ 



(alveoli) 



Length of premolar* (crown) .... 



(alveolus) . . 



" " molars^~2 (crowns) .... 



" " (alveoli) 



Lower tooth-row (alveoli) 



Zygomatic width 



Breadth of occipital condyles . . . . 



124 

 104 

 60 

 47 

 64 

 60 



49 



16 



15 



16.5 



16.5 



91 

 27 



53 



16 



15 



16.5 



15.5 



138 



121 



65 



49 



138 



125 



67 



52 



142 

 119 



67.5 



53 



68 



57 



15.5 



14.5 



15.5 



14 



61 



58 

 16. 

 15 

 17. 

 15. 



69 



58 



57 



17.5 



16 



102 



27 



109 

 30 



94 

 29 



28 



145 



125 



66 



53 



69 



56.5 

 16.5 

 15 

 17 



16.5 

 81 

 102 

 31.5 



Remarks. — The existence of this breed of aboriginal dogs with 

 shortened face and undershot, bull-dog-like jaw, was first discoxered 

 by Reiss and Stiibel in the course of their investigation of the necro- 

 polis of Ancon, Peru. Nehring (1885) published an account of their 

 discovery and gave the Latin name Canis ingac molossoides to the 



