﻿Rev. 
  A. 
  M. 
  Norman's 
  Notes 
  on 
  British 
  Amphipoda. 
  451 
  

  

  carpus 
  rather 
  expanded 
  and 
  lobed 
  behind, 
  the 
  lobe 
  not 
  pro- 
  

   jected 
  downwards 
  over 
  wrist 
  ; 
  wrist 
  and 
  hand 
  linear, 
  all 
  the 
  

   joints 
  except 
  thigh 
  only 
  sparingly 
  setose. 
  Last 
  peraaopocls 
  

   (fig. 
  10) 
  with 
  thigh 
  pyriform, 
  as 
  broad 
  as 
  long, 
  slightly 
  emar- 
  

   ginate 
  below 
  behind. 
  All 
  the 
  pairs 
  of 
  uropods 
  with 
  inner 
  

   branch 
  somewhat 
  longer 
  than 
  outer, 
  last 
  pair 
  with 
  peduncle 
  

   and 
  longer 
  branch 
  subequal. 
  Telson 
  subquadrate, 
  apex 
  

   emarginate 
  in 
  the 
  centre, 
  angles 
  broadly 
  rounded, 
  each 
  fur- 
  

   nished 
  with 
  five 
  marginal 
  spinules. 
  Length 
  10 
  millim. 
  

  

  The 
  male 
  differs 
  from 
  the 
  above-described 
  female 
  in 
  having 
  

   the 
  second 
  and 
  third 
  joints 
  of 
  peduncle 
  of 
  antennules 
  shorter 
  

   (as 
  appears 
  to 
  be 
  usual 
  in 
  males 
  of 
  this 
  genus) 
  and 
  together 
  

   not 
  equalling 
  the 
  length 
  of 
  first 
  joint; 
  flagellum 
  long, 
  15- 
  

   jointed, 
  joints 
  very 
  long, 
  especially 
  the 
  first 
  and 
  the 
  distal 
  

   articulations, 
  first 
  equalling 
  combined 
  length 
  of 
  last 
  two 
  joints 
  

   of 
  peduncle, 
  densely 
  setose. 
  Antenna} 
  with 
  two 
  distal 
  joints 
  

   of 
  peduncle 
  clothed 
  with 
  short 
  cilia 
  on 
  upper 
  margin 
  ; 
  fiagel- 
  

   lum 
  very 
  long. 
  

  

  Monoculodes 
  subnudus 
  is 
  distinguished 
  from 
  its 
  allies 
  more 
  

   especially 
  by 
  the 
  rostrum, 
  telson, 
  and 
  peraeopods 
  ; 
  the 
  name 
  

   subnudus 
  has 
  allusion 
  to 
  the 
  comparatively 
  slight 
  ciliation 
  of 
  

   the 
  last-named 
  organs 
  in 
  this 
  species. 
  

  

  Hob. 
  Shetland 
  ; 
  Sleat 
  Sound, 
  Isle 
  of 
  Skye 
  (A. 
  M. 
  N.). 
  

  

  In 
  many 
  respects 
  M. 
  subnudus 
  approaches 
  M. 
  borealis, 
  

   Boeck, 
  but 
  may 
  at 
  once 
  be 
  distinguished 
  by 
  the 
  greater 
  length 
  

   of 
  the 
  rostrum 
  and 
  its 
  less 
  arched 
  form 
  ; 
  a 
  figure 
  of 
  the 
  ros- 
  

   trum 
  of 
  M. 
  borealis 
  is 
  given 
  for 
  comparison 
  (PI. 
  XIX. 
  fig. 
  11). 
  

   It 
  also 
  comes 
  near 
  to 
  the 
  Greenland 
  species 
  M.simjjleXy 
  Hansen, 
  

   but 
  here 
  again 
  the 
  longer 
  rostrum 
  suffices 
  to 
  distinguish 
  it. 
  

   The 
  form 
  of 
  the 
  rostrum 
  appears 
  to 
  afford 
  very 
  valid 
  charac- 
  

   ters 
  in 
  this 
  genus, 
  and 
  all 
  the 
  specimens 
  of 
  the 
  present 
  species 
  

   which 
  I 
  have 
  examined 
  have 
  the 
  rostrum 
  alike. 
  

  

  3. 
  Monoculodes 
  longimanus, 
  Bate 
  and 
  Westwood. 
  

   (PI. 
  XX. 
  figs. 
  6-9.) 
  

  

  18G8. 
  Monoculodes 
  longimanus, 
  Bate 
  & 
  Westw. 
  Brit. 
  Sessile-eyed 
  Crust. 
  

  

  vol. 
  ii. 
  p. 
  507. 
  

   1870. 
  Monoculodes 
  Grubei, 
  Boeck, 
  Crust. 
  Amplrip. 
  bor. 
  et 
  arct. 
  p. 
  85. 
  

   1^76. 
  Monoculodes 
  Grubei, 
  Boeck, 
  I)e 
  Skaud. 
  og 
  Arkt. 
  Auiphip. 
  p. 
  269, 
  

  

  pi. 
  xvi. 
  rig. 
  1. 
  

   1883. 
  Monoculodes 
  Grubei, 
  Schneider, 
  Af 
  Norges 
  kyster 
  forekom. 
  (Edi- 
  

  

  ceridoe, 
  p. 
  24. 
  

  

  1887. 
  Monoculodes 
  longimanus, 
  Ckevreaux, 
  Cat. 
  Crust. 
  Ampbip. 
  du 
  

   Sud-ouest 
  de 
  la 
  Bretagne, 
  p. 
  13, 
  pi. 
  v. 
  figs. 
  1, 
  2, 
  

  

  1888. 
  Monoadodes 
  cequimanus 
  (Norman, 
  MS.), 
  Bobertsoii, 
  Contrib. 
  Cat. 
  

   Amphipoda 
  and 
  Isopoda 
  Firth 
  of 
  Clyde, 
  p. 
  20. 
  

  

  Hub. 
  Oban 
  ; 
  Firth 
  of 
  Clyde 
  ; 
  Starcross, 
  Devon 
  {A. 
  M. 
  N.) 
  ; 
  

  

  