﻿various 
  South- 
  American 
  Mammals. 
  359 
  

  

  Buenos 
  Ayres 
  fox 
  (described 
  below) 
  and 
  the 
  members 
  of 
  tlie 
  

   genus 
  Cerdocyo7i. 
  Tliis, 
  as 
  may 
  be 
  gathered 
  from 
  Mr. 
  Aplin's 
  

   interesting 
  account 
  o£ 
  the 
  mammals 
  of 
  Uruguay, 
  occurs 
  side 
  

   by 
  side 
  with 
  the 
  "Agouara/^ 
  which 
  1 
  identity 
  with 
  Bur- 
  

   meister's 
  Canis 
  entrerianus 
  * 
  . 
  

  

  Pseudalopex 
  culpceola, 
  sp. 
  n. 
  

  

  Essentially 
  like 
  Ps. 
  ciilpfeus, 
  but 
  very 
  much 
  smaller. 
  

  

  Size 
  a[)proximately 
  as 
  in 
  tlie 
  Buenos 
  Ayres 
  fox 
  (^Canis 
  

   azm^m, 
  Burmeister, 
  nee 
  Wied). 
  Colour 
  about 
  as 
  in 
  that 
  

   animal, 
  the 
  back 
  mixed 
  black 
  and 
  pale 
  buffy, 
  the 
  nape 
  like 
  

   the 
  back, 
  though 
  less 
  heavily 
  blackened. 
  Under 
  surface 
  

   w!iiti>sh, 
  tlie 
  throat 
  nearly 
  pure 
  white, 
  the 
  interramia 
  scarcely 
  

   darkened, 
  and 
  the 
  extreme 
  tip 
  of 
  the 
  chin 
  black, 
  the 
  extent 
  of 
  

   the 
  black, 
  however, 
  in 
  no 
  way 
  comparable 
  to 
  what 
  occurs 
  in 
  

   the 
  black-chinned 
  species. 
  Head 
  biift'y 
  rufous. 
  Ears, 
  outer 
  

   sides 
  of 
  limbs, 
  and 
  the 
  hams 
  bright 
  rufous, 
  as 
  in 
  culpcBus. 
  

   1 
  ail 
  with 
  the 
  usual 
  black 
  patch 
  over 
  the 
  gland 
  and 
  broad 
  

   black 
  tuft 
  ; 
  the 
  rest 
  of 
  the 
  tail-hairs 
  creamy 
  whitish, 
  with 
  

   black 
  tips. 
  

  

  Skull 
  very 
  like 
  that 
  of 
  the 
  Buenos 
  Ayres 
  fox 
  f, 
  con- 
  

   spicuously 
  smaller 
  than 
  in 
  Ps. 
  culpxmts. 
  Forehead 
  very 
  

   slightly 
  swollen 
  ; 
  postorbital 
  processes 
  strongly 
  developed. 
  

   P^ 
  comparatively 
  smaller. 
  

  

  Hind 
  foot 
  of 
  type 
  137 
  mm. 
  ; 
  ear 
  90. 
  

  

  Skull 
  : 
  greatest 
  length 
  143 
  ; 
  condylo-basal 
  length 
  140 
  ; 
  

   zygomatic 
  breadth 
  77 
  ; 
  nasals 
  51; 
  interorbital 
  breadth 
  26'7 
  ; 
  

   breadth 
  of 
  brain-case 
  46 
  ; 
  palatal 
  length 
  75 
  ; 
  p^ 
  on 
  outer 
  

   edge 
  13*4 
  ; 
  m^ 
  and 
  vi^ 
  combined 
  17. 
  

  

  Hub. 
  Soriano, 
  Uruguay. 
  Type 
  from 
  Santa 
  Elena. 
  

  

  Type. 
  Adult 
  female. 
  B.M. 
  no. 
  94. 
  1. 
  24. 
  2. 
  Collected 
  

   29th 
  October, 
  1892, 
  by 
  O. 
  V. 
  Aplin, 
  Esq. 
  

  

  Distinguishable 
  from 
  all 
  forms 
  of 
  the 
  Culpeo 
  by 
  its 
  smaller 
  

   size 
  and 
  from 
  the 
  Zorro 
  of 
  Buenos 
  Ayres, 
  the 
  Canis 
  azarte 
  

   auctorum, 
  by 
  its 
  practically 
  white 
  chin, 
  white 
  uudersidi,', 
  and 
  

   ferruoinous 
  limbs 
  and 
  hams. 
  

  

  * 
  Reise 
  La 
  Plata, 
  ii. 
  p. 
  400 
  (1861). 
  Burmeister 
  later 
  (Republ. 
  Argent. 
  

   iii. 
  p. 
  154, 
  1879) 
  stated 
  that 
  this 
  species 
  had 
  been 
  founded 
  on 
  a 
  male 
  

   ^^ 
  Canis 
  cancrivortcs 
  " 
  and 
  a 
  female 
  " 
  Canis 
  aza)-(s" 
  ; 
  but 
  Cerdocyons 
  appa- 
  

   rently 
  do 
  not 
  occur 
  in 
  this 
  region, 
  and, 
  taking 
  the 
  male 
  as 
  the 
  type, 
  there 
  

   seems 
  no 
  doubt 
  that 
  entrerianus 
  should 
  be 
  identified 
  with 
  Mr. 
  Aplin's 
  

   Agouara, 
  an 
  animal 
  much 
  more 
  Cerdocyon-\\ke 
  than 
  the 
  members 
  of 
  the 
  

   genus 
  Fseudaiopex, 
  The 
  female 
  was 
  no 
  doubt 
  the 
  Buenos 
  Ayres 
  fox 
  

   described 
  below. 
  

  

  t 
  So 
  strong 
  is 
  this 
  resemblance 
  that, 
  in 
  case 
  any 
  mistake 
  has 
  been 
  

   made 
  in 
  the 
  identification 
  of 
  the 
  skull, 
  I 
  think 
  it 
  advisable 
  to 
  nominate 
  

   the 
  skin 
  as 
  the 
  type. 
  

  

  