﻿MAMMALS 
  OF 
  NORTHERN 
  COLOMBIA 
  — 
  HERSHKOVITZ 
  417 
  

  

  y 
  aplic, 
  Mexico, 
  vol. 
  1, 
  p. 
  403, 
  1940 
  (substitute 
  name 
  for 
  Hapale 
  geoffroyi 
  

   Pucheran, 
  "preoccupied" 
  by 
  Simia 
  geoffroyi 
  Humboldt). 
  

  

  Holotype. 
  — 
  Female, 
  skin 
  mounted, 
  skull 
  separate, 
  M. 
  N. 
  H. 
  N. 
  

   type 
  catalog 
  No. 
  112, 
  accession 
  catalog 
  No. 
  621; 
  the 
  living 
  specimen 
  

   donated 
  to 
  the 
  menagerie 
  of 
  the 
  Jardin 
  des 
  Plantes, 
  Paris, 
  died 
  August 
  

   25, 
  1845. 
  

  

  Type 
  locality. 
  — 
  "Panama," 
  here 
  restricted 
  to 
  Canal 
  Zone. 
  

  

  Distribution. 
  — 
  From 
  the 
  Choco, 
  Pacific 
  coast 
  of 
  Colombia, 
  north 
  

   into 
  Canal 
  Zone, 
  Panama; 
  altitudinal 
  range, 
  sea 
  level 
  to 
  approximately 
  

   700 
  meters 
  above 
  in 
  the 
  Serranla 
  del 
  Darien. 
  

  

  Coloration. 
  — 
  Face 
  sparsely 
  haired 
  but 
  with 
  a 
  well-defined 
  line 
  of 
  

   whitish 
  hairs 
  from 
  posterior 
  corner 
  of 
  eye 
  to 
  angle 
  of 
  jaw; 
  grayish 
  

   superciliary 
  band 
  moderately 
  well 
  defined; 
  median 
  frontal 
  region 
  with 
  

   a 
  triangular 
  crest 
  of 
  coarse 
  white 
  hairs; 
  sides 
  of 
  crown 
  sparsely 
  haired. 
  

   Hairs 
  of 
  reddish 
  mantle 
  from 
  back 
  of 
  head 
  to 
  interscapular 
  region 
  

   black 
  basally, 
  Orange-Rufous 
  to 
  Mahogany 
  Red 
  terminally. 
  Back 
  

   and 
  sides 
  marbled 
  or 
  irregularly 
  striated 
  with 
  black 
  and 
  buffy 
  to 
  

   ochraceous 
  or 
  white, 
  the 
  hairs 
  black 
  basally, 
  white 
  or 
  Light 
  Buff 
  to 
  

   Ochraceous-Buff, 
  subterminally, 
  tips 
  black; 
  outer 
  surface 
  of 
  thigh 
  

   like 
  back, 
  inner 
  side 
  often 
  like 
  basal 
  portion 
  of 
  tail; 
  outer 
  surface 
  of 
  

   leg 
  with 
  less 
  black 
  than 
  thigh, 
  foot 
  whitish 
  to 
  yellow 
  or 
  ochraceous 
  

   on 
  upper 
  surface. 
  Upper 
  surface 
  of 
  shoulder, 
  arm 
  and 
  hand, 
  inner 
  

   surface 
  of 
  limbs, 
  neck 
  (except 
  nape), 
  throat, 
  chest 
  and 
  belly, 
  white 
  

   to 
  yellow, 
  the 
  chest 
  and 
  belly 
  often 
  streaked 
  with 
  ochraceous; 
  hairs 
  

   at 
  angle 
  between 
  chin 
  and 
  throat 
  directed 
  forward. 
  Proximal 
  one- 
  

   fifth 
  to 
  one-third 
  of 
  tail 
  mixed 
  or 
  striated 
  black 
  and 
  Orange-Rufous 
  

   to 
  Mahogany 
  Red, 
  terminal 
  portion 
  uniformly 
  black. 
  

  

  Measurements. 
  — 
  Those 
  of 
  a 
  male 
  and 
  female 
  from 
  Sautata, 
  Rio 
  

   Atrato, 
  followed 
  by 
  those 
  (cranial 
  only) 
  of 
  a 
  male 
  from 
  Rio 
  Salaqui, 
  

   Choc6, 
  both 
  localities 
  in 
  Colombia: 
  head 
  and 
  body, 
  245, 
  250; 
  tail, 
  

   382, 
  370; 
  hind 
  foot, 
  73, 
  72; 
  greatest 
  length 
  of 
  skull, 
  52.5, 
  51.2, 
  54.0; 
  

   zygomatic 
  breadth, 
  36.3, 
  35.4, 
  36.2; 
  distance 
  across 
  orbital 
  rings, 
  

   29.5, 
  28.5, 
  29.5; 
  width 
  of 
  brain 
  case, 
  28.0, 
  28.4, 
  27.6; 
  distance 
  across 
  

   auditory 
  bullae 
  from 
  meatus, 
  25.7, 
  25.5, 
  25.9; 
  crown 
  length 
  of 
  upper 
  

   molar 
  row, 
  9.8, 
  10.4, 
  10.0; 
  crown 
  width 
  of 
  upper 
  first 
  molar, 
  3.7, 
  3.4, 
  

   3.7 
  mm. 
  

  

  Remarks. 
  — 
  Marikina 
  geoffroyi 
  is 
  the 
  only 
  marmoset 
  indigenous 
  to 
  

   North 
  America. 
  Biogeographically, 
  however, 
  the 
  Panamanian 
  part 
  

   of 
  the 
  range 
  enters 
  into 
  the 
  composition 
  of 
  the 
  "Choco-Darien" 
  

   subzone 
  of 
  continental 
  South 
  America. 
  Besides 
  Panamd, 
  Elliot 
  

   erroneously 
  included 
  Costa 
  Rica, 
  instead 
  of 
  Colombia, 
  in 
  the 
  range 
  of 
  

   geofroyi. 
  

  

  According 
  to 
  Cabrera's 
  (op. 
  cit.) 
  interpretation 
  of 
  the 
  Rules 
  regard- 
  

   ing 
  homonyms, 
  Hapale 
  geoffroyi 
  Pucheran 
  is 
  preoccupied 
  by 
  Simia 
  

  

  