﻿364 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  forearm 
  and 
  foreleg 
  Orange-Rufous 
  to 
  Chestnut 
  sharply 
  contrasting 
  

   with 
  anterior 
  half 
  of 
  back 
  and 
  side 
  of 
  body; 
  hairs 
  of 
  belly 
  and 
  lower 
  

   part 
  of 
  chest 
  Orange-Rufous 
  to 
  Burnt 
  Sienna 
  and 
  silvery, 
  of 
  upper 
  

   part 
  of 
  chest, 
  silvery 
  and 
  buffy; 
  pale 
  area 
  of 
  front 
  extending 
  slightly 
  

   or 
  not 
  at 
  all 
  over 
  upper 
  surface 
  of 
  shoulder. 
  

  

  Rio 
  Chili, 
  Tolima, 
  tributary 
  oj 
  upper 
  Cucuana, 
  altitude 
  between 
  500 
  

   arid 
  700 
  meters 
  (1 
  male, 
  1 
  female): 
  Adult 
  male: 
  Cap 
  Front's 
  Brown, 
  

   nape 
  paler, 
  upper 
  median 
  dorsal 
  region 
  Snuff 
  Brown, 
  posteriorly 
  

   becoming 
  Ochraceous-Tawny 
  to 
  Tawny 
  on 
  rump 
  and 
  basal 
  portion 
  

   of 
  upper 
  surface 
  of 
  tail; 
  side 
  of 
  back 
  Snuff 
  Brown 
  becoming 
  Sayal 
  

   Brown 
  on 
  side 
  and 
  lateral 
  fringe 
  ; 
  hairs 
  of 
  belly 
  Orange-Rufous 
  termi- 
  

   nally, 
  silvery 
  basally, 
  of 
  chest 
  silvery; 
  front 
  of 
  shoulder 
  whitish, 
  the 
  

   hairs 
  tipped 
  with 
  pinkish. 
  Outer 
  side 
  of 
  upper 
  arm 
  Snuff 
  Brown, 
  

   forearm 
  and 
  front 
  of 
  upper 
  arm 
  Burnt 
  Sienna; 
  wrist 
  Chestnut, 
  upper 
  

   surface 
  of 
  hand 
  and 
  hairs 
  of 
  fingers 
  Bay. 
  Thigh 
  Sanford's 
  Brown 
  

   laterally. 
  Burnt 
  Sienna 
  in 
  front; 
  foreleg 
  Burnt 
  Sienna 
  becoming 
  darker 
  

   distally, 
  to 
  Chestnut 
  on 
  ankle 
  and 
  upper 
  surface 
  of 
  foot, 
  hairs 
  of 
  toes 
  

   Bay. 
  Tail 
  grading 
  to 
  Warm 
  Buff 
  terminally 
  both 
  above 
  and 
  below. 
  

   Adult 
  jemale: 
  Size 
  small 
  but 
  with 
  complete 
  permanent 
  dentition; 
  

   extremely 
  pale 
  due 
  to 
  worn 
  condition 
  of 
  pelage, 
  the 
  pale 
  basal 
  portions 
  

   of 
  hairs 
  exposed 
  and 
  dominating 
  in 
  superficial 
  coloration 
  of 
  back. 
  

   Cap 
  Snuff 
  Brown; 
  upper 
  median 
  dorsal 
  region, 
  sides 
  of 
  back 
  and 
  lateral 
  

   fringe 
  Wood 
  Brown, 
  lower 
  half 
  of 
  median 
  dorsal 
  region 
  and 
  base 
  of 
  

   tail 
  above, 
  Ochraceous-Tawny; 
  whitish 
  patch 
  extending 
  from 
  front 
  

   to 
  upper 
  surface 
  of 
  shoulder; 
  outer 
  side 
  of 
  forearm 
  Sanford's 
  Brown, 
  

   of 
  foreleg 
  Orange-Rufous. 
  Tail, 
  except 
  at 
  base, 
  Ochraceous-Buff 
  

   below, 
  browner 
  above. 
  

  

  Gamarra, 
  Rio 
  Magdalena, 
  altitude 
  69 
  meters 
  (1 
  male, 
  3 
  females): 
  

   Cap 
  Cinnamon-BrowTi 
  to 
  Front's 
  Brown; 
  median 
  dorsal 
  region 
  ante- 
  

   riorly 
  Snuff 
  Brown 
  to 
  Sayal 
  Brown 
  with 
  a 
  light 
  wash 
  of 
  Tawny, 
  pos- 
  

   teriorly 
  more 
  Tawny; 
  side 
  of 
  back 
  paler, 
  with 
  less 
  Tawny, 
  becoming 
  

   Sayal 
  Brown 
  on 
  sides 
  of 
  body 
  and 
  lateral 
  fringe 
  ; 
  hairs 
  of 
  belly 
  Orange- 
  

   Rufous 
  to 
  Burnt 
  Sienna, 
  becoming 
  buffy 
  to 
  whitish 
  on 
  chest. 
  Brown 
  

   of 
  side 
  extending 
  over 
  upper 
  surface 
  of 
  shoulder 
  and 
  outer 
  side 
  of 
  

   upper 
  arm; 
  forearm 
  and 
  front 
  of 
  upper 
  arm 
  Sanford's 
  Brown 
  to 
  Burnt 
  

   Sienna; 
  upper 
  surface 
  of 
  hand, 
  in 
  one 
  female 
  Ochraceous-Buff 
  with 
  an 
  

   orangeous 
  patch, 
  hairs 
  of 
  fingers 
  Ochraceous-Buff, 
  in 
  remaining 
  speci- 
  

   mens, 
  hands 
  and 
  fingers 
  more 
  orange. 
  Thigh 
  Orange-Rufous 
  to 
  San- 
  

   ford's 
  Brown 
  on 
  lateral 
  surface, 
  upper 
  surface 
  of 
  foot 
  darker, 
  fringed 
  

   with 
  buffy 
  hairs; 
  toes 
  with 
  a 
  mixtiu-e 
  of 
  buffy 
  and 
  Bay 
  hairs. 
  Tail 
  

   in 
  females 
  Snuff 
  Brown 
  above, 
  Cinnamon 
  beneath 
  becoming 
  buffy 
  

   terminally, 
  in 
  male 
  the 
  hairs 
  Front's 
  Brown 
  with 
  light 
  tips 
  above, 
  

   beneath 
  Tawny 
  proximally, 
  the 
  whole 
  becoming 
  paler 
  distally. 
  

  

  The 
  series 
  differs 
  from 
  both 
  pleei 
  and 
  the 
  type 
  and 
  Tolima 
  specimens 
  

  

  