﻿AOTUS 
  7 
  

  

  chained 
  and 
  it 
  never 
  became 
  familiar. 
  It 
  lived 
  in 
  a 
  broad-mouthed 
  

   glass 
  jar 
  placed 
  in 
  a 
  box, 
  and 
  when 
  any 
  one 
  entered 
  the 
  room 
  it 
  would 
  

   dive 
  head 
  foremost 
  into 
  this, 
  and 
  turning 
  around, 
  thrust 
  forth 
  its 
  face 
  

   and 
  stare 
  at 
  the 
  intruder. 
  At 
  night 
  it 
  was 
  very 
  active, 
  uttering 
  at 
  times 
  

   a 
  cry 
  like 
  a 
  dog's 
  suppressed 
  bark, 
  and 
  scampered 
  about 
  to 
  the 
  length 
  

   of 
  its 
  chain 
  after 
  cockroaches 
  and 
  spiders. 
  When 
  it 
  tried 
  to 
  climb 
  

   between 
  the 
  box 
  and 
  the 
  wall, 
  the 
  space 
  was 
  straddled, 
  bending 
  the 
  

   knuckles 
  at 
  an 
  acute 
  angle 
  and 
  resting 
  upon 
  the 
  palms 
  and 
  tips 
  of 
  the 
  

   outstretched 
  fingers 
  and 
  toes 
  and 
  then 
  mounted 
  easily. 
  The 
  nails 
  are 
  

   flat 
  on 
  both 
  fingers 
  and 
  toes, 
  and 
  their 
  physiognomy 
  is 
  like 
  that 
  of 
  an 
  

   owl 
  or 
  tiger 
  cat. 
  By 
  the 
  Indians 
  these 
  monkeys 
  are 
  known 
  as 
  Ei-a. 
  

   He 
  found 
  two 
  species 
  inhabiting 
  the 
  same 
  forest 
  of 
  the 
  higher 
  and 
  

   drier 
  lands 
  without 
  intercrossing 
  or 
  even 
  intermingling 
  with 
  each 
  

   other. 
  His 
  captive 
  ate 
  all 
  kinds 
  of 
  fruit, 
  but 
  preferred 
  insects, 
  and 
  

   would 
  not 
  touch 
  meat 
  raw 
  or 
  cooked 
  and 
  was 
  seldom 
  thirsty. 
  He 
  was 
  

   told 
  by 
  persons 
  who 
  had 
  kept 
  these 
  monkeys 
  about 
  the 
  house 
  that 
  they 
  

   cleared 
  the 
  chambers 
  of 
  bats 
  and 
  insect 
  vermin. 
  When 
  it 
  was 
  gently 
  

   approached, 
  his 
  pet 
  permitted 
  one 
  to 
  caress 
  it, 
  but 
  if 
  roughly 
  handled 
  

   would 
  bite 
  severely, 
  strike 
  with 
  its 
  hands 
  and 
  make 
  a 
  hissing 
  noise 
  

   like 
  that 
  of 
  a 
  cat. 
  It 
  met 
  an 
  unfortunate 
  fate, 
  as 
  it 
  was 
  killed 
  by 
  a 
  

   Cairara 
  monkey 
  which 
  was 
  jealous. 
  

  

  Wallace 
  writing 
  on 
  this 
  species 
  states, 
  (1. 
  c.) 
  "of 
  the 
  curious 
  Noc- 
  

   turnal 
  Monkeys 
  forming 
  the 
  genus 
  Nyctipithecus 
  there 
  are 
  two 
  species 
  

   in 
  this 
  district, 
  (Valley 
  of 
  the 
  Amazon), 
  one 
  which 
  appears 
  to 
  be 
  the 
  

   N. 
  trivirgatus 
  of 
  Humboldt, 
  is 
  found 
  in 
  the 
  district 
  of 
  Ecuador, 
  west 
  

   of 
  the 
  Upper 
  Rio 
  Negro 
  ; 
  the 
  other 
  closely 
  allied, 
  probably 
  the 
  N. 
  feli- 
  

   nus 
  (=A. 
  infulatus), 
  on 
  the 
  Upper 
  Amazon. 
  Their 
  large 
  eyes, 
  

   cat-like 
  faces, 
  soft 
  woolly 
  hair 
  and 
  nocturnal 
  habits 
  render 
  them 
  a 
  

   very 
  interesting 
  group. 
  They 
  are 
  called 
  'devil 
  monkeys' 
  by 
  the 
  In- 
  

   dians 
  and 
  are 
  said 
  to 
  sleep 
  during 
  the 
  day 
  and 
  to 
  roam 
  about 
  only 
  at 
  

   night. 
  I 
  have 
  specimens 
  of 
  them 
  alive, 
  but 
  they 
  are 
  very 
  delicate 
  and 
  

   soon 
  die." 
  

  

  Spix's 
  type 
  of 
  A. 
  felinus 
  from 
  which 
  my 
  description 
  was 
  taken 
  is 
  

   in 
  the 
  Munich 
  Museum 
  in 
  very 
  good 
  condition, 
  and 
  the 
  colors 
  well 
  

   preserved. 
  The 
  skull 
  is 
  not 
  in 
  the 
  specimen 
  and 
  my 
  measurements 
  

   given 
  were 
  taken 
  from 
  a 
  skull 
  in 
  the 
  British 
  Museum 
  Collection. 
  

  

  Chirogaleus 
  ( 
  !) 
  commersoni 
  was 
  described 
  after 
  an 
  individual 
  

   without 
  any 
  locality 
  or 
  history. 
  The 
  type 
  has 
  disappeared, 
  and 
  the 
  

   description 
  given 
  in 
  the 
  Zoological 
  Journal, 
  1829, 
  p. 
  112, 
  will 
  cover 
  

   various 
  examples 
  of 
  different 
  species, 
  as 
  no 
  especial 
  character 
  is 
  given 
  

   that 
  may 
  be 
  considered 
  peculiar 
  to 
  the 
  type 
  alone. 
  

  

  