﻿various 
  South- 
  American 
  Mammals. 
  357 
  

  

  IJah. 
  Moon 
  Mountains, 
  S. 
  of 
  British 
  Guiana. 
  

  

  T//pe. 
  Adult 
  female. 
  B.M. 
  no. 
  11.6.7.24. 
  Original 
  

   number 
  14 
  a. 
  Presented 
  by 
  F. 
  V. 
  McConnell, 
  Esq. 
  

  

  This 
  little 
  dog 
  is 
  no 
  doubt 
  most 
  nearly 
  allied 
  to 
  its 
  geogra- 
  

   phical 
  neighbour 
  C. 
  t. 
  savannarum, 
  from 
  the 
  Kanuku 
  Moun- 
  

   tains, 
  just 
  further 
  north, 
  but 
  is 
  readily 
  distinguisliable 
  by 
  its 
  

   still 
  smaller 
  size. 
  The 
  typical 
  specimens 
  of 
  the 
  two 
  forms 
  

   are 
  both 
  females, 
  so 
  that 
  the 
  question 
  of 
  sex 
  does 
  not 
  arise. 
  

   The 
  skull 
  of 
  savannarum 
  is 
  125 
  mm. 
  in 
  condylo-basal 
  length. 
  

  

  Pseudalopex 
  culpseus, 
  Molina, 
  and 
  its 
  Subspecies. 
  

  

  The 
  large 
  " 
  Culpeo 
  " 
  ranges 
  from 
  Ecuador 
  to 
  the 
  Straits 
  

   of 
  Magellan 
  with 
  but 
  little 
  cliange 
  of 
  character. 
  At 
  most, 
  

   certain 
  forms 
  of 
  it 
  may 
  be 
  distinguished 
  as 
  subspecies. 
  

  

  In 
  the 
  south 
  the 
  skulls 
  tend 
  to 
  get 
  longer, 
  especially 
  in 
  

   the 
  muzzle, 
  a 
  tendency 
  which 
  is 
  carried, 
  on 
  the 
  average, 
  

   slightly 
  further 
  in 
  Patagonian 
  and 
  Magellan 
  specimens 
  than 
  

   in 
  those 
  from 
  Central 
  Chili, 
  the 
  type-locality 
  of 
  culpanis. 
  

   On 
  this 
  account 
  we 
  may, 
  perhaps, 
  provisionally 
  recognize 
  

   an 
  extreme 
  southern 
  subspecies, 
  Ps. 
  c. 
  magellanicus, 
  which 
  

   gradually 
  passes 
  into 
  Ps. 
  c. 
  culpceus. 
  

  

  In 
  Tierra 
  del 
  Fuego 
  the 
  skull-lengthening 
  is 
  carried 
  to 
  an 
  

   extreme 
  in 
  the 
  very 
  distinct 
  Ps, 
  lycoides, 
  Phil. 
  

  

  On 
  the 
  other 
  hand, 
  in 
  the 
  north 
  the 
  skull 
  is 
  shorter, 
  and 
  

   there 
  is 
  little 
  of 
  the 
  peculiar 
  lengthening 
  of 
  the 
  muzzle 
  found 
  

   in 
  the 
  extreme 
  south. 
  Specimens 
  from 
  Ecuador, 
  Peru, 
  and 
  

   Bolivia 
  all 
  agree 
  in 
  the 
  size 
  and 
  shape 
  of 
  their 
  skulls. 
  

  

  Those 
  from 
  Ecuador 
  would 
  be 
  representative 
  oi 
  Ps. 
  c. 
  reissiij 
  

   riilzh.^, 
  while 
  those 
  from 
  the 
  highlands 
  of 
  Peru 
  and 
  Bolivia 
  

   differ 
  enough 
  in 
  colour 
  to 
  seem 
  worthy 
  of 
  subspecific 
  

   distinction 
  : 
  — 
  

  

  Pseudalopex 
  culpceus 
  andina, 
  subsp. 
  n. 
  

  

  Similar 
  to 
  Ps. 
  c. 
  reissii 
  in 
  skull-characters, 
  but 
  the 
  colour 
  

   more 
  suffused 
  with 
  buffy 
  above, 
  especially 
  anteriorly, 
  and 
  

   whiter 
  below. 
  

  

  While 
  in 
  I'eissii 
  the 
  reddish 
  colour 
  of 
  the 
  crown 
  changes 
  

   abruptly 
  at 
  the 
  occiput 
  to 
  the 
  heavily 
  black-washed 
  grey 
  of 
  

   the 
  back, 
  the 
  na|)e 
  being 
  therefore 
  like 
  the 
  latter, 
  in 
  the 
  new 
  

   form 
  the 
  nape, 
  from 
  the 
  withers 
  forward, 
  is 
  strongly 
  suffused 
  

   with 
  buffy, 
  and 
  the 
  black 
  tips 
  to 
  the 
  longer 
  hairs 
  are 
  so 
  

  

  * 
  Canis 
  {Angusticeps) 
  reissii, 
  Hilzh. 
  Zool. 
  Anz., 
  April 
  1906, 
  p. 
  114. 
  

   Speothos 
  riveti, 
  Troues. 
  C. 
  R. 
  voJ. 
  cxliii. 
  p. 
  1184 
  (December 
  1906). 
  

  

  I 
  htive 
  examined 
  the 
  type 
  of 
  the 
  latter, 
  and 
  find 
  it 
  to 
  be 
  a 
  young 
  

   Pseudalopex. 
  The 
  subgenus 
  Microcyim 
  was 
  based 
  upon 
  it 
  {t. 
  c. 
  p. 
  il86j, 
  

  

  Ann. 
  (& 
  Mag. 
  N. 
  Hist. 
  Ser. 
  8. 
  Vol. 
  xiii. 
  24 
  

  

  