﻿480 
  Mr. 
  0. 
  Thomas 
  on 
  

  

  LV. 
  — 
  JVew 
  Callicebus 
  aiid 
  Eamops//o»i 
  S. 
  America. 
  

   By 
  Oldfield 
  Thomas. 
  

  

  (PiiLlislied 
  by 
  permission 
  of 
  the 
  Trustees 
  of 
  the 
  British 
  Museum.) 
  

  

  Callicebus 
  toppini, 
  sp. 
  n. 
  

  

  Allied 
  to 
  and 
  of 
  the 
  same 
  grizzled 
  brown 
  colour 
  as 
  C. 
  cu- 
  

   jyreus. 
  Crowii-Iiairs 
  simiL^rly 
  tipped 
  with 
  buffj, 
  but 
  along 
  

   the 
  front 
  edge 
  o£ 
  the 
  hairy 
  part 
  of 
  the 
  forehead 
  the 
  hairs 
  are 
  

   black, 
  thus 
  forming 
  an 
  indistinct 
  blackish 
  frontal 
  band. 
  

   Belly 
  and 
  terminal 
  part 
  of 
  limbs 
  red, 
  as 
  in 
  cupreiis, 
  but 
  on 
  

   the 
  hind 
  legs 
  the 
  red 
  is 
  rather 
  more 
  extended, 
  coming 
  up 
  to 
  

   cover 
  the 
  knee. 
  Hairs 
  on 
  ears 
  dark 
  reddish 
  brown. 
  Tail- 
  

   hairs 
  mixed 
  grey 
  and 
  blackish, 
  as 
  in 
  cupreus, 
  but 
  those 
  on 
  

   the 
  proximal 
  two-thirds 
  are 
  tipped 
  with 
  black, 
  not 
  with 
  white 
  

   or 
  huffy 
  as 
  in 
  the 
  other 
  species 
  of 
  this 
  group. 
  

  

  Diuiensions 
  of 
  skull 
  : 
  — 
  

  

  Greatest 
  length 
  65*6 
  mm. 
  ; 
  basal 
  lengtli 
  50; 
  breadl:h 
  of 
  

   brain-case 
  35*5 
  ; 
  premolars 
  and 
  molars 
  together 
  ir)'2. 
  

  

  Ilab. 
  Rio 
  Tahuamanu, 
  N.E. 
  Peru, 
  near 
  Bolivian 
  Boun- 
  

   dary. 
  About 
  12° 
  20' 
  8., 
  6b° 
  45' 
  W. 
  

  

  Ti/pe. 
  Adult 
  female. 
  B.M. 
  no. 
  14. 
  3. 
  3. 
  3. 
  Collected 
  

   and 
  presented 
  by 
  Capt. 
  H. 
  S. 
  Toppin. 
  

  

  From 
  all 
  the 
  members 
  of 
  the 
  group 
  wit^h 
  reddish 
  ears 
  this 
  

   species 
  may 
  be 
  distinguished 
  by 
  the 
  dark 
  tips 
  to 
  its 
  caudal 
  

   hairs. 
  C. 
  cnpreus 
  has 
  also 
  no 
  black 
  hairs 
  on 
  the 
  forehead, 
  

   while 
  C. 
  usto-fuscus, 
  which 
  is 
  darker 
  throughout, 
  has 
  many 
  

   more. 
  C. 
  pcenukUus 
  has 
  au 
  elongated 
  mantle, 
  paler 
  tliau 
  

   the 
  rest 
  of 
  the 
  back. 
  

  

  I 
  have 
  named 
  the 
  species 
  in 
  honour 
  of 
  Capt. 
  Toppin, 
  who, 
  

   in 
  spite 
  of 
  great 
  climatic 
  difficulties, 
  succeeded 
  in 
  bringing 
  

   home 
  for 
  the 
  National 
  Museuui 
  several 
  mammals 
  from 
  au 
  

   almost 
  -unknown 
  part 
  of 
  !S. 
  America. 
  

  

  Eumops 
  dahhenei, 
  sp. 
  n. 
  

  

  The 
  largest 
  American 
  Molossine 
  bat, 
  exceeding 
  E. 
  perotis 
  

   in 
  forearm 
  and 
  skuU-lcngth. 
  

  

  Size 
  large, 
  the 
  body 
  thick 
  and 
  clumsy, 
  forearms 
  not 
  long 
  

   in 
  pro);ortion 
  to 
  the 
  bulky 
  body 
  and 
  broad 
  head. 
  Ears 
  of 
  

   about 
  normal 
  size, 
  not 
  greatly 
  enlarged, 
  as 
  in 
  perutis 
  (they 
  

   are, 
  however, 
  tiiickened 
  in 
  both 
  specimens, 
  and 
  may 
  have 
  

  

  