﻿Species 
  of 
  Amp 
  Jiipoda. 
  559 
  

  

  vol. 
  iii. 
  1889, 
  p. 
  198) 
  ; 
  on 
  this 
  occasion 
  they 
  were 
  in 
  con- 
  

   siderable 
  numbers, 
  and 
  therefore 
  probably 
  not 
  accidental, 
  

   but 
  feeding- 
  either 
  on, 
  or, 
  more 
  probably, 
  with 
  the 
  poly|)es. 
  

   Dr. 
  W. 
  M. 
  Tattersall 
  informs 
  nie 
  that 
  he 
  has 
  found 
  it 
  

   *' 
  extremely 
  abundant 
  wherever 
  Alcyonium 
  digifafum 
  is 
  to 
  be 
  

   found, 
  and, 
  in 
  deep 
  water, 
  commonly 
  associated 
  with 
  other 
  

   Alcyonarians 
  such 
  as 
  LopJiohelia 
  ; 
  also 
  clinging- 
  to 
  such 
  

   Compound 
  Ascidians 
  as 
  LeptocUniuni.^^ 
  He 
  tliiid<s, 
  how- 
  

   ever, 
  that 
  it 
  is 
  rather 
  a 
  case 
  of 
  protective 
  coloration 
  than 
  

   conimensalism 
  — 
  a 
  question 
  that 
  will 
  require 
  careful 
  aquarium 
  

   and 
  laboratory 
  observations 
  to 
  solve. 
  

  

  Amphipoda. 
  

  

  Eiionyx 
  chelatvs, 
  Norman. 
  

   More 
  abundant 
  than 
  usual. 
  

  

  Lysianassa 
  plumosa, 
  Boeck. 
  

  

  A 
  single 
  young 
  specimen, 
  length 
  6 
  mm. 
  This 
  is 
  a 
  rare 
  

   species 
  on 
  our 
  coasts. 
  When 
  fresh 
  its 
  colour 
  distinguishes 
  

   it 
  at 
  a 
  glance, 
  the 
  body-segments, 
  especially 
  the 
  first 
  two 
  or 
  

   three 
  and 
  those 
  of 
  the 
  pleon, 
  being 
  blotched 
  with 
  pink 
  or 
  

   orange, 
  as 
  described 
  by 
  G. 
  0. 
  Sars. 
  Canon 
  A. 
  M. 
  Norman 
  

   doubts 
  the 
  specific 
  distinction 
  between 
  this 
  species 
  and 
  

   L, 
  ceraiinus, 
  Walker, 
  on 
  the 
  ground 
  that 
  specimens 
  occur 
  

   "with 
  only 
  a 
  small 
  spine-point 
  on 
  the 
  hinder 
  margin 
  of 
  the 
  

   third 
  segment 
  of 
  the 
  metasome.'' 
  In 
  the 
  present 
  specimen 
  

   it 
  is 
  very 
  slightly 
  upturned, 
  so 
  as 
  to 
  form 
  an 
  acute 
  angle 
  

   {~p)> 
  which 
  is 
  probably 
  a 
  condition 
  of 
  immaturity. 
  In 
  

   L. 
  ceratinus 
  it 
  is 
  completely 
  routided 
  at 
  all 
  ages, 
  while 
  the 
  

   colour 
  is 
  a 
  uniform 
  yellowish 
  white. 
  

  

  Ly.tianassa 
  ceratina, 
  Walker. 
  

  

  For 
  the 
  synonymy 
  see 
  Trans. 
  Linn. 
  Soc, 
  2nd 
  ser. 
  vol. 
  xii. 
  

   p. 
  327. 
  

  

  A 
  single 
  adult 
  male. 
  'J'his 
  had 
  the 
  pergeopods 
  1 
  and 
  2 
  

   and 
  uropods 
  3 
  clothed 
  with 
  plumose 
  set?e, 
  as 
  in 
  L. 
  plumosa^ 
  

   Boeck. 
  It 
  is 
  probably 
  a 
  generic 
  character 
  in 
  adult 
  males. 
  

  

  Coropliiam 
  crassicorne, 
  Bruz., 
  and 
  C. 
  bonelli, 
  M. 
  -Edwards. 
  

  

  On 
  Aug. 
  10, 
  1913, 
  Dr. 
  W. 
  A. 
  Ilerdman, 
  in 
  a 
  small 
  motor- 
  

   launch 
  from 
  his 
  steam-yacht 
  ' 
  Runa,' 
  made 
  a 
  haul 
  with 
  a 
  

   very 
  small 
  and 
  light 
  dredge 
  with 
  cheese-cloth 
  bag 
  in 
  the 
  

   south 
  or 
  '' 
  blind 
  " 
  entrance 
  to 
  Tobermory 
  Harbour, 
  depth 
  at 
  

  

  