E. LÖNNBERG, MAMMALOGY OF ECUADOR. 99 



former that p^ to its anterior third is situated inside c, while 

 there is a good interspace between these teeth in the Miri- 

 tiba specimens. On the other hand the premaxillary portion 

 (canine to gnathion) is rather larger in the former. The 

 relative narrowness of the interorbital region is especially 



noteworthy. 



On the whole the Coati from Baeza may be considered 

 as a somewhat dwarfed, western offshoot of the northeastern 

 rufous Nasua nasua L. In spite of its smaller size it is pro- 

 vided with comparatively large teeth. Especially m' is larger 

 than in the Coatis from Miritiba, even if the most large- 

 toothed among them are selected, because there appears to 

 be a considerable variation with regard to the size of the 

 molars in these animals. 



Cranial measurements of Coatis from 



Chaco 

 E. Ecuador, Brazil, S. Brazil, Austral, 



Baeza Miritiba S:a Catharina Rio de 



_-'^ 



Oro 



Greatest mesial length 11-2,5 122 125,2 117,5 132,5 127,5 



Condylobasal » 106,5 114 115 112,8 125 



Basal r> 101 108 109,5 107 118,2 - 



Hensel » 98,3 106 106,8 105 115,2 - 



Zygomatic breadth . . . 69,8 70 73,7 73,5 77,5 66,5 

 Gnathion to tip of post- 



orbit. proc. . 62,5 69 69 65,5 72,2 68,3 



> to hind mar- 

 gin oi mr . . 56,5 57,8 59,5 58 64 61 

 » to hind mar- 

 gin of palate 



meaially . • 69,5 76 75 72,2 79 — 



Interorbital breadth . . 22,2 26 26,2 25 26,5 24,3 



Postorbital constriction 21,6 22 23,2 19 21 23,3 



Breadth of braincase . . 41 43 42,8 40 45,5 43,8 

 Length of upper molar 



series . . . 34,3 35 35,8 35 37,7 36 



» . p^-m^ . . . 21,0 20,5 (20^) 21 22,2 21,5 



Breadth of skull acrossp' 22,5 24 23,7 22,9 24 21,5 



» » » » m' 32,7 34,2 34,3 34,3 34 32 

 Distance between m^ and 



bulla 31.4 36 - 33 38.5 30 



^ Much worn. 



