1S90.] SOUTH-AMEriCAN CANIDiE. 113 



centimeters. 

 Length of M^ -62 



Breadth of P^ -5 



MJ 1-0 



„ ^ -8 



Length of p. l -2 



f72 -50 



pTs -o.") 



Pr4 -G') 



M. I l-Of) 



iTs -S 



SO -4 



Breadth of mTT -So 



,, m72 -55 



„ mTs -4 



The species of Ca7iis previously referred to seem to arrange them- 

 selves in three sets : — 



(1) Forms allied to, and probably varieties of, C. azarre, in 



which P. 4 is relatively large, averaging, as compared with 

 M.1+M.2, 100 to 118. 



(2) Forms allied to C. cancrivorus, in which 1^4 is rather small, 



averaging 100 to 125. 



(3) Forms allied to C. parvidens (C. vetu/us of Burmeister, but 



not of Lund), in which P^ is extremely small, averaging 

 100 to KJO. 



If these views are not mistaken, the species and varieties will 

 stand thus : — 



I. 0. cancrivorus. Brazil. 



Variety (a) : b}'asiliensis. Brazil. 

 n. C. microtis. Brazil. 

 in. C. azarce. Brazil to Tierra del Fuego. 

 Variety (a) : fulvipes (dark). Chiloe. 



(/j) : (jriseus (pale). Shores of the Straits of 



Magellan, 

 (c): patagonicus (ring-tailed). Shores of the 



Straits of Magellan. 

 {d) : entrerianus (dark). Entre Rios. 

 (e) : (/racilis (pale). Meudoza. 

 (/): Lund's vetulus (pale). Brazil. 

 \g): Lund's /2/Z2;/caMf/MS (bright-tailed). Brazil. 

 IV. C. parvidens, mihi (very small £ii). Brazil. 



Variety («) : Burmeister's vetulus (pale-tailed). Lagoa 

 Santa. 

 {b): Burmeister's fulvicaudus (bright-tailed). 

 Lagoa Santa. 

 V. C. urostictus, mihi (black stripe on tail). Brazil. 



