﻿374 
  Df. 
  T. 
  Scott 
  on 
  some 
  

  

  are 
  tolerablj^ 
  large, 
  but 
  the 
  third 
  is 
  rather 
  shorter 
  than 
  the 
  

   other 
  three, 
  which 
  are 
  subeqnal 
  ; 
  the 
  four 
  end 
  joints 
  are 
  

   slender 
  and 
  the 
  first 
  three 
  are 
  moderately 
  short, 
  but 
  the 
  

   terminal 
  one 
  is 
  somewhat 
  elongated 
  and 
  nearly 
  twice 
  the 
  

   length 
  o£ 
  the 
  preceding 
  joint. 
  The 
  formula 
  shows 
  approxi- 
  

   mately 
  the 
  proportional 
  lengths 
  of 
  the 
  various 
  joints 
  : 
  — 
  

  

  1.2.3.4.5.6.7.8 
  

   10 
  10 
  9 
  11 
  8 
  6 
  7 
  12* 
  

  

  The 
  antennae 
  are 
  small 
  and 
  are 
  provided 
  with 
  a 
  very 
  small 
  

   outer 
  ramus. 
  The 
  second 
  maxillipeds 
  are 
  also 
  small 
  ; 
  the 
  

   hand 
  is 
  narrow 
  and 
  of 
  moderate 
  length, 
  and 
  bears 
  a 
  minute 
  

   seta 
  near 
  the 
  distal 
  end 
  of 
  the 
  inner 
  margin. 
  The 
  inner 
  

   ramus 
  of 
  the 
  first 
  pair 
  of 
  thoracic 
  legs 
  is 
  elongated 
  and 
  slender 
  ; 
  

   the 
  proximal 
  joint 
  reaches 
  beyond 
  the 
  end 
  of 
  the 
  outer 
  

   ramus, 
  but 
  the 
  other 
  two 
  are 
  short 
  ; 
  the 
  joints 
  of 
  the 
  outer 
  

   ramus 
  are 
  subequal 
  and 
  moderately 
  stout, 
  and 
  furnished 
  

   with 
  long 
  spiniform 
  setae 
  {fig. 
  4). 
  The 
  other 
  natatory 
  legs 
  

   are 
  slender 
  and 
  moderately 
  elongated 
  (fig. 
  5). 
  Fifth 
  pair 
  

   broadly 
  foliaceous 
  ; 
  the 
  inner 
  portion 
  of 
  the 
  proximal 
  joint 
  

   is 
  rather 
  narrower 
  than 
  the 
  outer 
  distal 
  one, 
  and 
  its 
  obliquely 
  

   truncated 
  end 
  is 
  provided 
  with 
  four 
  setae 
  of 
  moderate 
  length 
  ; 
  

   the 
  distal 
  joint 
  is 
  tolerably 
  expanded, 
  its 
  outer 
  and 
  inner 
  

   margins 
  are 
  nearly 
  parallel, 
  and 
  its 
  extremity 
  is 
  irregularly 
  

   triangular 
  and 
  furnished 
  with 
  five 
  seta? 
  arranged 
  as 
  shown 
  in 
  

   the 
  drawing 
  (fig. 
  6). 
  The 
  caudal 
  rami 
  are 
  very 
  short. 
  

  

  One 
  or 
  two 
  specimens 
  of 
  this 
  minute 
  form 
  occurred 
  in 
  the 
  

   same 
  tow-net 
  gathering 
  with 
  the 
  Pseudothalcstris 
  previously 
  

   described. 
  This 
  species 
  has 
  some 
  resemblance 
  to 
  Amphiascus 
  

   minutus, 
  G. 
  S. 
  Brady, 
  from 
  Kerguelen 
  Island, 
  but 
  difiers 
  in 
  

   the 
  form 
  of 
  the 
  fifth 
  pair 
  of 
  legs 
  and 
  in 
  one 
  or 
  two 
  other 
  

   anatomical 
  details. 
  The 
  male 
  was 
  not 
  observed. 
  

  

  Fam. 
  Laophontidae. 
  

  

  Genus 
  Laophonte, 
  Philippi, 
  1810. 
  

  

  Laophonte 
  insipiis, 
  sp. 
  n. 
  (PI. 
  XIII. 
  figs. 
  10-15.) 
  

  

  Female. 
  — 
  Somewhat 
  similar 
  to 
  the 
  female 
  of 
  Laophonte 
  

   gracUijjes, 
  G. 
  S. 
  Brady, 
  from 
  Kerguelen 
  Island. 
  Antennules 
  

   moderately 
  short 
  and 
  composed 
  of 
  seven 
  articulations 
  ; 
  the 
  

   first 
  three 
  joints 
  are 
  large 
  and 
  together 
  are 
  equal 
  to 
  nearly 
  

   two-thirds 
  the 
  entire 
  length 
  of 
  the 
  antennule 
  ; 
  the 
  remaining 
  

   joints 
  are 
  small, 
  but 
  the 
  two 
  end 
  joints 
  are 
  rather 
  longer 
  than 
  

  

  