﻿422 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  es 
  

  

  Coloration. 
  — 
  Chin 
  to 
  crown 
  in 
  front 
  of 
  ears 
  nearly 
  bare 
  ; 
  back 
  of 
  head, 
  

   nape, 
  interscapular 
  region 
  with 
  long 
  white 
  hairs, 
  the 
  white 
  extending 
  

   from 
  shoulders 
  over 
  arms, 
  throat, 
  and 
  chest 
  and 
  tapering 
  to 
  a 
  point 
  on 
  

   anterior 
  half 
  of 
  belly. 
  Remainder 
  of 
  back 
  and 
  sides 
  sharply 
  contrasted 
  

   Fuscous 
  to 
  Drab 
  lined 
  or 
  grizzled 
  with 
  buffy 
  to 
  ochraceous, 
  a 
  poorly 
  

   defined 
  dark 
  median 
  band 
  present 
  or 
  absent 
  ; 
  outer 
  surface 
  of 
  thigh 
  and 
  

   leg 
  hke 
  back. 
  Belly 
  and 
  inner 
  surface 
  of 
  thigh 
  Ochraceous-Orange 
  to 
  

   Orange-Rufous. 
  Outer 
  surface 
  of 
  fore 
  limb 
  white 
  or 
  yellowish, 
  hand 
  

   above 
  silvery 
  more 
  or 
  less 
  lined 
  with 
  buffy 
  or 
  ochraceous. 
  Tail 
  above 
  

   dark 
  brown 
  to 
  black, 
  penciled 
  tip 
  black, 
  or 
  like 
  sharply 
  defined 
  orange 
  

   underside 
  of 
  tail. 
  

  

  Measurements. 
  — 
  Of 
  an 
  adult 
  female 
  topotype: 
  Head 
  and 
  body, 
  229; 
  

   tail, 
  335, 
  kind 
  foot, 
  70; 
  greatest 
  length 
  of 
  skidl 
  49.9; 
  zygomatic 
  breadth, 
  

   33.2; 
  distance 
  across 
  orbital 
  rings, 
  28.0; 
  width 
  of 
  brain 
  case, 
  27.4; 
  dis- 
  

   tance 
  across 
  auditory 
  bullae 
  from 
  meatus, 
  23,5; 
  crown 
  length 
  of 
  upper 
  

   molar 
  row, 
  9.6; 
  crown 
  width 
  of 
  first 
  upper 
  molar, 
  3.5 
  mm. 
  

  

  Remarks. 
  — 
  Tip 
  of 
  tail 
  of 
  an 
  old 
  female 
  is 
  black 
  on 
  upper 
  side, 
  that 
  

   of 
  the 
  only 
  other 
  available 
  specimen, 
  an 
  immature 
  male, 
  orange. 
  The 
  

   original 
  color 
  plate 
  of 
  bicolor 
  shows 
  the 
  tail 
  entirely 
  orange 
  except 
  for 
  

   paler 
  basal 
  portion 
  and 
  slightly 
  darker 
  tip. 
  

  

  Specimens 
  examined. 
  — 
  Two. 
  Mandos, 
  1 
  (C.N.H.M.) 
  ; 
  Campos 
  Salles, 
  

   Mandos, 
  Rio 
  Negro, 
  Brazil, 
  1 
  (A.M.N.H.). 
  

  

  MARIKINA 
  MARTINSI 
  Thomas 
  

  

  Leontocebus 
  martinsi 
  Thomas, 
  Ann, 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  8, 
  vol. 
  9, 
  p. 
  85, 
  1912. 
  

  

  Seniocebus 
  martinsi, 
  Elliot, 
  A 
  review 
  of 
  the 
  Primates, 
  vol. 
  1, 
  p. 
  189, 
  1913 
  (descrip- 
  

   tion 
  quoted). 
  

  

  Oedipomidas 
  martinsi, 
  Elliot, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  33, 
  p. 
  645, 
  1914 
  

   (synonymy). 
  

  

  Tamarin 
  (Oedipomidas) 
  martinsi, 
  Tate, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  76, 
  p. 
  

   209, 
  1939 
  (Faro, 
  Brazil). 
  

  

  Marikina 
  martinsi, 
  Cruz 
  Lima, 
  Contrib. 
  Mus. 
  Paraense 
  Emilio 
  Goeldi 
  Hist. 
  Nat., 
  

   vol. 
  1, 
  p. 
  205, 
  pi. 
  33, 
  fig. 
  2, 
  1945 
  (Faro; 
  Rio 
  Erepecurd, 
  Pard,, 
  Brazil). 
  

  

  Holotype. 
  — 
  Adult 
  male, 
  skin 
  and 
  skull, 
  British 
  Museum 
  (Natural 
  

   History) 
  No. 
  11. 
  12. 
  22. 
  2; 
  collected 
  April 
  27, 
  1911, 
  by 
  Oscar 
  Martins; 
  

   original 
  number, 
  3. 
  

  

  Type 
  locality. 
  — 
  Faro, 
  north 
  side 
  of 
  lower 
  Amazonas, 
  near 
  mouth 
  of 
  

   Rio 
  Yamundd, 
  western 
  Pard, 
  Brazil. 
  

  

  Distribution. 
  — 
  Known 
  only 
  from 
  the 
  small 
  area 
  on 
  north 
  bank 
  of 
  

   lower 
  Amazonas 
  between 
  Rios 
  Yamandd 
  (Faro), 
  and 
  Erepecurii 
  

   (Obidos), 
  state 
  of 
  Pard,, 
  Brazil. 
  

  

  Coloration. 
  — 
  Chin 
  to 
  crown 
  in 
  front 
  of 
  ears 
  nearly 
  bare; 
  crown 
  

   between 
  ears 
  sparsely 
  covered 
  with 
  long 
  Drab 
  hairs. 
  Nape, 
  back, 
  and 
  

   sides 
  Drab 
  to 
  Hair 
  Brown 
  lined 
  with 
  Light 
  Buff 
  to 
  Ochraceous-Buff, 
  

   brownish 
  basal 
  portions 
  of 
  hairs 
  showing 
  through, 
  nape 
  sometime 
  

   without 
  ochraceous 
  lining. 
  Fore 
  Hmb 
  Warm 
  Buff 
  to 
  Antimony 
  

   Yellow 
  on 
  outer 
  side, 
  more 
  ochraceous 
  on 
  inner; 
  outer 
  side 
  of 
  hind 
  

  

  