﻿PYCNOGONIDA 
  FROM 
  JAPANESE 
  WATERS 
  — 
  HEDGPETH 
  

  

  245 
  

  

  Table 
  4. 
  — 
  Statistical 
  tabulation 
  of 
  pycnogonids 
  collected 
  bij 
  the 
  Siboga, 
  1899-1900 
  

  

  Station 
  

  

  15. 
  

   45. 
  

   49, 
  

   50. 
  

   60. 
  

   65, 
  

   81. 
  

   88. 
  

   94. 
  

   99. 
  

   117 
  

   122 
  

   129 
  

   136 
  

   154 
  

   163 
  

   167 
  

   172 
  

   173 
  

   178, 
  

  

  Station 
  

  

  184- 
  . 
  

   210 
  a 
  

   213.- 
  

   225 
  c 
  

   227-- 
  

   240.. 
  

   258-- 
  

   260.. 
  

   271.- 
  

   273.. 
  

   285.. 
  

   289.. 
  

   294.. 
  

   303.. 
  

   310- 
  . 
  

   314.. 
  

   315.. 
  

   316.- 
  

   318.- 
  

   321- 
  - 
  

  

  Number 
  

   of 
  species 
  

  

  SYSTEMATIC 
  DISCUSSION 
  

  

  Family 
  NYMPHONIDAE 
  Wilson, 
  1878 
  

   Genus 
  NYMPHON 
  J. 
  C. 
  Fabricius, 
  1794 
  

  

  The 
  taxonomic 
  peculiarities 
  of 
  the 
  Japanese 
  species 
  of 
  this 
  genus 
  

   have 
  already 
  been 
  commented 
  upon 
  and 
  need 
  not 
  be 
  reviewed 
  here. 
  

   While 
  the 
  bulk 
  of 
  the 
  collections 
  consists 
  of 
  Nymphons, 
  the 
  representa- 
  

   tion 
  of 
  some 
  species 
  is 
  disappointingly 
  small. 
  There 
  are 
  no 
  specimens 
  

   of 
  Nyinphon 
  grossipes 
  or 
  its 
  manifold 
  varieties, 
  and 
  neither 
  N. 
  brevi- 
  

   rostre 
  nor 
  N. 
  inicronydG^ 
  which 
  have 
  been 
  recognized 
  from 
  the 
  western 
  

   Pacific 
  by 
  Russian 
  workers, 
  was 
  taken 
  by 
  the 
  Albatross 
  near 
  Japan. 
  

   Future 
  collections 
  may 
  fill 
  in 
  these 
  gaps. 
  

  

  Nine 
  of 
  the 
  species 
  in 
  the 
  collections 
  are 
  described 
  as 
  new 
  ; 
  eight 
  of 
  

   them 
  are 
  from 
  Japanese 
  waters. 
  Future 
  systematic 
  work 
  may 
  reduce 
  

   some 
  of 
  these 
  to 
  synonymy, 
  but 
  little 
  comparative 
  material 
  has 
  been 
  

   available, 
  except 
  the 
  types 
  of 
  Hilton's 
  incompletely 
  described 
  species 
  

   from 
  the 
  Bering 
  Sea 
  and 
  Alaska. 
  I 
  am 
  not 
  the 
  first, 
  nor 
  will 
  I 
  be 
  the 
  

   last, 
  to 
  lament 
  over 
  the 
  complexities 
  of 
  this 
  genus, 
  and 
  I 
  earnestly 
  hope 
  

   that 
  revision 
  of 
  its 
  numerous 
  species 
  will 
  not 
  be 
  too 
  long 
  delayed. 
  

  

  KEY 
  TO 
  SPECIES 
  OF 
  NYMPHON 
  FROM 
  THE 
  NORTH 
  PACIFIC 
  

  

  1. 
  Auxiliary 
  claws 
  present 
  2 
  

  

  Auxiliary 
  claws 
  absent 
  22 
  

  

  