﻿358 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  than 
  others 
  taken 
  from 
  August 
  20 
  to 
  October 
  27, 
  during 
  the 
  short 
  dry 
  

   season 
  or 
  veranillo 
  (Aug.-Sept.) 
  and 
  the 
  heavy 
  rainy 
  season. 
  

  

  One 
  immature, 
  possibly 
  6 
  to 
  10 
  weeks 
  old, 
  with 
  all 
  milk 
  incisors 
  

   fully 
  erupted, 
  taken 
  August 
  30, 
  is 
  Ochraceous-Orange 
  middorsally, 
  

   side 
  of 
  body 
  Ochraceous-Buff, 
  fore 
  and 
  hind 
  limbs 
  on 
  outer 
  sides 
  

   mixed 
  Ochraceous-Orange 
  and 
  Ochraceous-Buff; 
  poorly 
  defined 
  cap 
  

   Drab; 
  proximal 
  half 
  of 
  tail 
  both 
  above 
  and 
  below, 
  Ochraceous-Orange, 
  

   terminally 
  paler 
  grading 
  into 
  Warm 
  Buff 
  at 
  tip 
  ; 
  underparts, 
  including 
  

   chin 
  and 
  tliroat, 
  practically 
  bare. 
  

  

  An 
  immature, 
  possibly 
  12 
  to 
  14 
  weeks 
  old, 
  with 
  canines 
  half 
  cut, 
  

   first 
  premolars 
  emerging, 
  taken 
  August 
  23, 
  is 
  darker 
  than 
  preceding 
  

   and 
  nearly 
  hke 
  adults 
  of 
  "pale 
  phase"; 
  development 
  of 
  pelage 
  of 
  

   underparts 
  about 
  one-half 
  that 
  of 
  adults. 
  

  

  Measurements. 
  — 
  Those 
  of 
  the 
  holotype 
  are 
  followed 
  by 
  the 
  means 
  

   and 
  extremes 
  of 
  18 
  adult 
  males, 
  including 
  holotype 
  of 
  the 
  type 
  series, 
  

   and 
  by 
  the 
  means 
  and 
  extremes 
  of 
  10 
  adult 
  females 
  of 
  the 
  type 
  series: 
  

   Head 
  and 
  body, 
  380, 
  384 
  (348-407); 
  368 
  (353-385); 
  tail, 
  459, 
  454 
  

   (419-495); 
  478 
  (461-500); 
  hind 
  foot, 
  126, 
  127 
  (119-136); 
  125 
  (114- 
  

   145); 
  ear, 
  40, 
  37 
  (35-40); 
  36 
  (34-37); 
  greatest 
  length 
  of 
  skull, 
  97.4, 
  

  

  92.8 
  (89.2-97.4); 
  88.6 
  (86.4-91.2); 
  condylobasal 
  length, 
  72.0, 
  70.1 
  

   (66.0-73.3); 
  65.9 
  (63.7-67.4); 
  zygomatic 
  breadth, 
  65.7, 
  61.8 
  (58.3- 
  

   67.1); 
  56.7 
  (53.4-58.4); 
  width 
  of 
  brain 
  case, 
  50.5, 
  50.8 
  (49.2-53.6); 
  

   49.3 
  (48.0-51.0); 
  length 
  of 
  brain 
  case, 
  78.6, 
  74.9 
  (70.9-78.6); 
  71.5 
  

   (70.2-73.6); 
  orbital 
  breadth, 
  55.2, 
  51.8 
  (47.5-55.6); 
  48.3 
  (40.4-51.7); 
  

   greatest 
  width 
  across 
  maxillary 
  tooth 
  rows, 
  29.1, 
  28.1 
  (26.3-29.6); 
  

  

  26.9 
  (25.9-27.8); 
  length, 
  upper 
  canine 
  to 
  M^ 
  27.2, 
  26.3 
  (24.6-28.3); 
  

  

  25.2 
  (24.7-25.7); 
  length, 
  lower 
  canine 
  to 
  Mg, 
  29.8, 
  29.0 
  (27.3-30.4); 
  

  

  27.3 
  (26.1-28.2) 
  mandibular 
  depth 
  at 
  condyle, 
  30.8, 
  27.3 
  (23.3-30.8); 
  

   24.9 
  (23.3-26.6 
  mm.). 
  

  

  Villanueva 
  (1 
  adult, 
  2 
  immature 
  males, 
  1 
  adult 
  female): 
  Adult 
  male: 
  

   Cap 
  Snuff 
  Brown, 
  median 
  dorsal 
  band 
  mixed 
  Tawny 
  and 
  Orange- 
  

   Cinnamon, 
  side 
  of 
  back 
  and 
  lateral 
  fringe 
  Cinnamon; 
  forearm 
  and 
  hind 
  

   leg 
  nearly 
  uniformly 
  Tawny; 
  hairs 
  of 
  upper 
  proximal 
  portion 
  of 
  tail 
  

   Tawny 
  tipped 
  with 
  buffy, 
  terminally 
  Cinnamon-Brown 
  more 
  broadly 
  

   tipped 
  with 
  Warm 
  Buff', 
  gradually 
  becoming 
  paler 
  toward 
  tip, 
  under- 
  

   surface 
  Tawny 
  proximally, 
  becoming 
  buffy 
  terminally. 
  Adult 
  female: 
  

   Paler 
  throughout 
  than 
  the 
  male, 
  without 
  the 
  hoar-frosted 
  appearance 
  

   of 
  tail, 
  Immatures: 
  Both 
  extremely 
  pallid, 
  the 
  paler 
  of 
  the 
  two 
  with 
  

   cap 
  Warm 
  Buff, 
  median 
  dorsal 
  band 
  Ochraceous-Buff, 
  sides 
  of 
  body 
  

   and 
  upper 
  arm 
  Cream 
  Buff, 
  forearm 
  from 
  Ochraceous-Buff 
  to 
  Ochra- 
  

   ceous-Tawny 
  at 
  wrist; 
  thigh 
  Ochraceous-Buff 
  to 
  Ochraceous-Orange, 
  

   foreleg 
  Ochraceous-Tawny 
  ; 
  tail 
  above 
  Ochraceous-Buff 
  proximally, 
  

   becoming 
  Warm 
  Buff 
  terminally, 
  underside 
  Warm 
  Buff 
  proximally 
  

   to 
  nearly 
  pure 
  white 
  terminally; 
  other 
  immature 
  more 
  cinnamon, 
  

   tail 
  above, 
  and 
  forearm 
  hoar-frosted. 
  

  

  