﻿On 
  G'ammarus 
  campylops, 
  Leach. 
  397 
  

  

  arcuafcis, 
  basi 
  laevissime 
  sinuato 
  ; 
  elytris 
  crebre 
  seriato-punctatis, 
  

   interstitiis 
  minute 
  irregulariter 
  punctulatis 
  : 
  

   cJ 
  , 
  antennarum 
  clava 
  elongata, 
  tibiis 
  anticis 
  longe 
  bidentatis, 
  tarsia 
  

   anticis 
  gracilibus, 
  posterioribus 
  brevibus 
  et 
  crassis, 
  pedum 
  omnium 
  

   articulo 
  ultimo 
  magno, 
  unguibus 
  longis, 
  medio 
  fissis. 
  

   Long. 
  5 
  mm. 
  ; 
  lat. 
  max. 
  2*5 
  mm. 
  

  

  Bab. 
  Paraguay 
  (Dr. 
  Bohls). 
  

  

  1 
  have 
  seen 
  only 
  two 
  male 
  examples 
  of 
  this 
  interesting 
  

   species, 
  the 
  type 
  of 
  which 
  has 
  been 
  kindly 
  presented 
  to 
  the 
  

   British 
  Museum 
  by 
  Herr 
  Carl 
  Felsche. 
  Although 
  agreeing 
  

   in 
  its 
  essential 
  generic 
  characters 
  with 
  the 
  two 
  other 
  species 
  

   of 
  Hapalonychus, 
  it 
  is 
  very 
  different 
  in 
  appearance. 
  It 
  is 
  

   much 
  smaller, 
  black, 
  and 
  much 
  more 
  coarsely 
  and 
  irregularly 
  

   punctured. 
  

  

  Tboginjs. 
  

  

  I 
  have 
  found 
  that 
  the 
  species 
  described 
  by 
  me 
  in 
  1903 
  as 
  

   C/osotus 
  acutipes 
  is 
  C. 
  nitens, 
  Guer., 
  which 
  therefore 
  ranges 
  

   from 
  Mexico 
  to 
  South 
  Brazil. 
  It 
  is 
  probably 
  also 
  nigerrimus, 
  

   Bl. 
  

  

  Cloeotus 
  puncticollis, 
  Har., 
  must 
  be 
  renamed 
  in 
  consequence 
  

   of 
  that 
  name 
  having 
  been 
  previously 
  applied 
  by 
  Erichson 
  to 
  

   C. 
  globosus, 
  Say. 
  It 
  may 
  be 
  called 
  C. 
  karoldi. 
  

  

  XLIX. 
  — 
  On 
  Gammarus 
  campylops, 
  Leach. 
  

   By 
  Alfred 
  O. 
  Walker, 
  F.L.S., 
  F.Z.S. 
  

  

  There 
  has 
  been 
  an 
  extraordinary 
  amount 
  of 
  confusion 
  in 
  

   regard 
  to 
  this 
  Amphipod. 
  To 
  begin 
  with 
  the 
  name 
  : 
  it 
  first 
  

   appeared 
  in 
  the 
  ' 
  Edinburgh 
  Encyclopaedia/ 
  Article 
  " 
  Crusta- 
  

   ceology," 
  vol. 
  vii. 
  1813, 
  under 
  the 
  meaningless 
  name 
  camy- 
  

   lops 
  — 
  no 
  doubt 
  a 
  printer's 
  error 
  : 
  in 
  the 
  appendix 
  to 
  the 
  

   same 
  article 
  (1814?) 
  it 
  appears 
  as 
  camylosps. 
  It 
  is 
  next 
  to 
  

   be 
  found 
  in 
  Dr. 
  Leach's 
  " 
  Arrangement 
  of 
  the 
  Crustacea, 
  &c." 
  

   in 
  the 
  'Transactions 
  of 
  the 
  Linnean 
  Society 
  of 
  London,' 
  

   vol. 
  xi. 
  (1815) 
  p. 
  360, 
  as 
  campylops, 
  from 
  the 
  Greek 
  kampulos, 
  

   crooked, 
  and 
  ops, 
  eye 
  — 
  a 
  perfectly 
  appropriate 
  name. 
  And 
  

   here 
  I 
  may 
  be 
  permitted 
  to 
  say, 
  with 
  all 
  due 
  respect 
  to 
  the 
  

   law 
  of 
  priority, 
  that 
  when 
  the 
  first 
  name 
  published 
  is 
  

   obviously 
  an 
  error, 
  shortly 
  afterwards 
  corrected 
  by 
  the 
  

   author, 
  it 
  is 
  surely 
  better 
  to 
  adopt 
  the 
  corrected 
  form. 
  The 
  

   correct 
  name 
  is 
  used 
  by 
  Desmarest 
  in 
  1825, 
  by 
  Milne- 
  

   Edwards 
  in 
  1840, 
  and 
  A. 
  White 
  in 
  1847 
  (List 
  Crust. 
  Brit. 
  

   Mus. 
  p. 
  88), 
  but 
  the 
  last-named 
  author 
  in 
  the 
  same 
  List, 
  

  

  