﻿LASIOPYGA 
  337 
  

  

  The 
  Simla 
  cethiops 
  Linn., 
  has 
  been 
  a 
  stumbling 
  block, 
  as 
  it 
  were, 
  

   to 
  Mammalogists 
  always, 
  and 
  by 
  most 
  writers 
  has 
  been 
  considered 
  to 
  

   belong 
  to 
  the 
  genus 
  Cercocebus, 
  and 
  has 
  usually 
  been 
  bestowed 
  upon 
  

   the 
  species 
  named 
  by 
  Buffon, 
  "Mangabey 
  a 
  collier 
  blanc," 
  Latinized 
  by 
  

   Gray 
  as 
  Cercocebus 
  collaris. 
  Mr. 
  de 
  Winton 
  in 
  Anderson's 
  Zoology 
  

   of 
  Egypt, 
  decided 
  that 
  all 
  previous 
  determinations 
  were 
  wrong, 
  that 
  

   Linnaeus' 
  species 
  was 
  a 
  Lasiopyga 
  and 
  gave 
  the 
  name 
  of 
  cethiops 
  Linn., 
  

   to 
  the 
  species 
  afterwards 
  named 
  by 
  Desmarest 
  (L.) 
  griseoviridis. 
  

   In 
  deciding 
  that 
  the 
  Simla 
  cethiops 
  Linn., 
  was 
  a 
  Lasiopyga 
  and 
  not 
  a 
  

   Cercocebus 
  Mr. 
  de 
  Winton 
  may 
  possibly 
  be 
  right, 
  but 
  there 
  is 
  more 
  

   than 
  a 
  considerable 
  doubt 
  that 
  the 
  species 
  was 
  the 
  griseoviridis 
  of 
  

   Desmarest, 
  for 
  I 
  am 
  not 
  prepared 
  to 
  follow 
  Mr. 
  de 
  Winton 
  when 
  he 
  

   says 
  that, 
  "every 
  word" 
  of 
  Linnaeus' 
  description 
  "agrees 
  perfectly 
  with 
  

   the 
  Monkey 
  under 
  notice," 
  L. 
  griseoviridis 
  (Desm.), 
  for 
  we 
  find 
  the 
  

   unanswerable 
  statement 
  to 
  the 
  contrary, 
  when 
  in 
  his 
  diagnosis 
  Lin- 
  

   naeus 
  gives 
  " 
  cauda 
  tecta, 
  subtus 
  ferruglneus" 
  which 
  certainly 
  does 
  not 
  

   agree 
  with 
  that 
  member 
  of 
  L. 
  griseoviridis 
  (Desm.), 
  which 
  has 
  

   no 
  red 
  anywhere 
  on 
  the 
  tail 
  above 
  or 
  beneath. 
  It 
  is 
  most 
  probable 
  as 
  in 
  

   many 
  other 
  instances 
  Linnaeus 
  never 
  saw 
  the 
  animal 
  he 
  named 
  cethiops, 
  

   and 
  he 
  merely 
  copied 
  Hasselquist's 
  description 
  in 
  an 
  abbreviated 
  form, 
  

   and 
  knew 
  nothing 
  of 
  the 
  animal 
  itself. 
  Hasselquist 
  says 
  he 
  saw 
  the 
  

   animal 
  alive 
  brought 
  into 
  Ethiopia, 
  (Egypt), 
  by 
  the 
  negroes, 
  but 
  what 
  

   the 
  species 
  was 
  it 
  is 
  impossible 
  now 
  to 
  determine, 
  for 
  there 
  is 
  no 
  

   species 
  of 
  Lasiopyga 
  with 
  any 
  red 
  on 
  the 
  under 
  parts 
  of 
  its 
  tail, 
  to 
  

   be 
  found 
  near 
  enough 
  to 
  have 
  probably 
  been 
  brought 
  by 
  natives 
  to 
  

   Cairo 
  150 
  years 
  ago. 
  The 
  nearest 
  known 
  to-day 
  are 
  members 
  of 
  the 
  

   pygerythra 
  style 
  in 
  Uganda 
  and 
  farther 
  south. 
  The 
  species 
  found 
  

   in 
  the 
  Soudan 
  is 
  L. 
  griseoviridis 
  and 
  it 
  would 
  be 
  natural 
  to 
  suppose 
  

   that 
  natives 
  might 
  carry 
  individuals 
  of 
  that 
  form 
  down 
  the 
  Nile 
  to 
  

   Cairo, 
  but 
  unfortunately 
  it 
  does 
  not 
  agree 
  with 
  either 
  Hasselquist's 
  

   or 
  Linnaeus' 
  descriptions, 
  and 
  as 
  there 
  is 
  no 
  known 
  species 
  that 
  does, 
  

   the 
  wisest 
  course 
  is 
  to 
  reject 
  cethiops 
  Linn., 
  as 
  undeterminable, 
  and 
  

   thus 
  save 
  all 
  future 
  Mammalogists, 
  from 
  the 
  vain 
  attempt 
  to 
  solve 
  

   a 
  problem 
  that 
  is 
  now 
  beyond 
  human 
  effort, 
  and 
  from 
  the 
  use 
  of 
  a 
  

   name 
  that 
  can 
  only 
  produce 
  confusion 
  and 
  futile 
  argument. 
  

  

  Lasiopyga 
  cynosura 
  (Scopoli). 
  

  

  Simla 
  cynosurus 
  Scop., 
  Delic. 
  Faun. 
  Flor. 
  Insubr., 
  I, 
  1786, 
  p. 
  44, 
  

  

  pi. 
  XIX. 
  

   Malbrouck 
  F. 
  Cuv., 
  Hist. 
  Nat. 
  Mamm., 
  Livr. 
  lime, 
  1819, 
  pi. 
  

   Cercopithecus 
  cynosurus 
  Desm., 
  Mamm., 
  1820, 
  p. 
  60; 
  Less., 
  

  

  