﻿352 
  Mr. 
  0. 
  Thomas 
  on 
  

  

  Lund's 
  typps, 
  T 
  do 
  not 
  think 
  to 
  be 
  the 
  case), 
  it 
  is 
  certain 
  that 
  

   they 
  are 
  congeneric, 
  and 
  therefore 
  the 
  name 
  of 
  Lycalojiex 
  

   should 
  stand 
  for 
  the 
  group, 
  antedating 
  Eunothocyon 
  by 
  many 
  

   years. 
  

  

  Next 
  comes 
  PseudaJopex, 
  Burmeister 
  (I85G), 
  containing 
  

   Canis 
  azarm, 
  Wied, 
  of 
  Burmeister 
  (really 
  the 
  Agouarachay), 
  

   C. 
  griseus, 
  and 
  G. 
  viagellanicus, 
  all 
  congeneric, 
  the 
  name 
  

   being 
  therefore 
  valid 
  for 
  the 
  group. 
  

  

  It 
  is 
  to 
  be 
  noted 
  that 
  this 
  interpretation 
  of 
  Lycaloyex 
  and 
  

   Fseudalopex 
  is 
  exactly 
  as 
  in 
  Gray's 
  ' 
  Catalogue^ 
  of 
  1869. 
  

  

  Going 
  back 
  now 
  to 
  Ctrdocyon^ 
  Ham. 
  Smith, 
  we 
  find 
  that 
  

   of 
  the 
  two 
  co-genotypes 
  selected 
  by 
  Dr. 
  Allen, 
  azarcc^ 
  Wied, 
  

   and 
  magellanicus, 
  Gray, 
  the 
  latter 
  has 
  been 
  removtd 
  by 
  

   Burmeister 
  into 
  Fseudalopex^ 
  leaving 
  the 
  first 
  and 
  most 
  

   natural 
  one, 
  azarcp, 
  Wied, 
  as 
  the 
  genotype 
  of 
  Cerdocyoiu 
  

   This 
  name 
  will 
  therefore 
  stand 
  for 
  the 
  Crabeaters, 
  instead 
  of 
  

   Dr. 
  Allen's 
  Cdvcinocyon. 
  

  

  As 
  a 
  result, 
  we 
  get 
  the 
  following 
  names 
  for 
  the 
  different 
  

   groups 
  of 
  8. 
  -American 
  (janidse 
  : 
  — 
  

  

  Chrysocyon 
  .... 
  juhatus 
  group. 
  Monotj'pic. 
  

  

  Diisicywi 
  .... 
  antarcticus 
  group. 
  Type, 
  antarcticus. 
  

  

  Cerdocyon 
  .... 
  t 
  hutis 
  growp. 
  'ryi^e,brasi/ie}isis{syn.azrir(P, 
  Wied). 
  

  

  Pseudalopex 
  . 
  . 
  Agouarachay 
  group. 
  Type, 
  niayellaiucns. 
  

  

  Lycahpex 
  .... 
  vetulus 
  group. 
  Type, 
  vetiihis. 
  

  

  Speothos 
  Kush-dogs. 
  Type, 
  veiiaticus. 
  

  

  Dusicyon 
  danolni, 
  sp. 
  n. 
  

  

  The 
  extinct 
  dog 
  of 
  East 
  Falkland 
  Island. 
  Larger 
  and 
  

   (it 
  is 
  said) 
  darker 
  coloured 
  than 
  D. 
  antarcticus, 
  that 
  of 
  the 
  

   Western 
  Island. 
  

  

  Size, 
  as 
  judged 
  by 
  skull, 
  decidedly 
  larger 
  than 
  in 
  antarc- 
  

   ticus. 
  General 
  colour 
  of 
  the 
  now 
  faded 
  type 
  rather 
  darker 
  

   than 
  in 
  a 
  skin 
  of 
  antarcticus, 
  the 
  hairs 
  of 
  the 
  back, 
  where 
  

   perfect, 
  with 
  broader 
  black 
  ends 
  than 
  in 
  the 
  allied 
  species. 
  

   According 
  to 
  the 
  account 
  quoted 
  below 
  from 
  Darwin, 
  the 
  

   colour 
  is 
  less 
  red 
  than 
  in 
  that 
  animal, 
  a 
  difference 
  now 
  but 
  

   doubtfully 
  perceptible 
  on 
  the 
  available 
  skins. 
  

  

  Skull 
  distinctly 
  larger 
  throughout 
  than 
  in 
  antarcticus. 
  

   Interorbital 
  region 
  flatter, 
  the 
  froiitals 
  less 
  prominently 
  in- 
  

   flated 
  on 
  each 
  side 
  of 
  the 
  middhi 
  line, 
  Muzzle 
  maikedly 
  

   broader. 
  

  

  Hind 
  foot 
  of 
  type 
  (c.) 
  175 
  mm. 
  

  

  