﻿PYCNOGONIDA 
  FROM 
  JAPANESE 
  WATERS 
  — 
  HEDGPETH 
  247 
  

  

  KEY 
  TO 
  SPECIES 
  OF 
  NYMPHON 
  FROM 
  THE 
  NORTH 
  PACIFIC— 
  Continued 
  

   A. 
  SPECIES 
  WITH 
  AUXILIARY 
  CLAWS— 
  Continued 
  

  

  20. 
  Fingers 
  of 
  chelae 
  as 
  long 
  as 
  palm, 
  with 
  20 
  or 
  more 
  teeth 
  on 
  the 
  dactylus_-20 
  

   Fingers 
  of 
  chelae 
  shorter 
  than 
  palm, 
  10-12 
  teeth 
  on 
  the 
  dactylus. 
  

  

  benthos 
  (p. 
  256) 
  

  

  21. 
  Trunk 
  thickset, 
  relatively 
  heavy; 
  chelae 
  and 
  tibiae 
  not 
  conspicuously 
  setose, 
  

  

  brasclinikowi 
  (p. 
  250) 
  

   Trunk 
  slender, 
  graceful; 
  chelae 
  and 
  tibiae 
  with 
  long, 
  fine 
  setae. 
  

  

  kodanii 
  (p. 
  252) 
  

  

  B. 
  SPECIES 
  WITHOUT 
  AUXILIARY 
  CLAWS 
  

  

  22. 
  Tarsus 
  equal 
  to, 
  or 
  longer 
  than 
  propodus 
  23 
  

  

  Tarsus 
  shorter 
  than 
  propodus 
  nipponense 
  (p. 
  267) 
  

  

  23. 
  Fourth 
  joint 
  of 
  palpus 
  equal 
  to, 
  or 
  almost 
  as 
  long 
  as 
  fifth 
  joint 
  24 
  

  

  Fourth 
  joint 
  of 
  palpus 
  conspicuously 
  shorter 
  than 
  fifth 
  25 
  

  

  24. 
  Teeth 
  of 
  chelae 
  large, 
  widely 
  spaced; 
  eye 
  tubercle 
  an 
  inconspicuous 
  mound 
  

  

  or 
  absent 
  altogether, 
  without 
  eyes 
  profvindum 
  (p. 
  270) 
  

  

  Teeth 
  of 
  chelae 
  small, 
  close 
  set; 
  eye 
  tubercle 
  prominent, 
  with 
  well-developed 
  

   eyes 
  imivmguiculatum. 
  (p. 
  263) 
  

  

  25. 
  Terminal 
  claw 
  as 
  long 
  as 
  propodus 
  albatrossi 
  (p. 
  263) 
  

  

  Terminal 
  claw 
  about 
  half 
  as 
  long, 
  or 
  conspicuously 
  shorter 
  than 
  propodus. 
  

  

  ohshimai 
  (p. 
  266) 
  

  

  A. 
  SPECIES 
  WITH 
  AUXILIARY 
  CLAWS 
  

  

  NYMPHON 
  GROSSIPES 
  (O. 
  Fabricius?) 
  Kr0yer 
  

  

  Nymphon 
  grossipes 
  Fabkicius, 
  1780, 
  p. 
  41. 
  

  

  Nymphon 
  grossipes 
  var. 
  mixtum 
  ScHiMKEWiTScn, 
  1930, 
  pp. 
  416-421, 
  figs. 
  107-109. 
  

  

  Nymplion 
  grossipes 
  var. 
  glaciale 
  Schimkewitsch, 
  1930, 
  pp. 
  421-425, 
  figs. 
  110-112. 
  

  

  'Nymphon 
  grossipes 
  Losina-Losinsky, 
  1933, 
  pp. 
  70-71. 
  

  

  f 
  Nymphon 
  trevirostre 
  subsp. 
  glaciale 
  Losina-Losinsky, 
  1933, 
  pp. 
  69-70. 
  

  

  Nymphon 
  grossipes 
  mixtum 
  Giltay, 
  1934, 
  p. 
  50. 
  

  

  Nymphon 
  tiirritum 
  Exline, 
  1936, 
  pp. 
  416-41S, 
  figs. 
  g-k. 
  

  

  Nymphon 
  mixtum 
  Ohshima, 
  1936, 
  p. 
  862. 
  — 
  Hilton, 
  1942a, 
  p. 
  5. 
  

  

  Nymphon 
  oculospinum 
  Hilton, 
  1942a, 
  p. 
  5. 
  

  

  Nymphon 
  nigrognathum 
  Hilton, 
  1942a, 
  p. 
  6. 
  

  

  Nymphon 
  turritiim 
  Hilton, 
  1942a, 
  p. 
  6. 
  

  

  Nymphon 
  grossipes 
  Hilton, 
  1942a, 
  p. 
  7. 
  

  

  The 
  characters 
  used 
  by 
  Hilton 
  in 
  erecting 
  his 
  new 
  species 
  (pointed 
  

   eye 
  tubercle 
  and 
  heavy 
  chitinized 
  chelae) 
  are 
  the 
  same 
  remarked 
  upon 
  

   by 
  Giltay 
  in 
  his 
  specimens 
  from 
  British 
  Columbia, 
  and 
  in 
  view 
  of 
  the 
  

   wide 
  variation 
  and 
  ubiquitous 
  distribution 
  of 
  this 
  species, 
  I 
  do 
  not 
  

   believe 
  they 
  can 
  stand 
  as 
  independent 
  species. 
  

  

  Losina-Losinsky's 
  Nyrnphon 
  hrevii^ostre 
  subsp. 
  glaciale 
  is 
  evidently 
  

   part 
  of 
  the 
  grossipes-mixtum-glaciale 
  complex 
  and 
  probably 
  should 
  be 
  

   considered 
  under 
  this 
  species. 
  

  

  NYMPHON 
  LONGITARSE 
  Kr0yer 
  

  

  Nymphon 
  longitarse 
  Kr0yer, 
  1844, 
  p. 
  112. 
  

  

  Nymphon 
  longitarse 
  var. 
  hrevicollis 
  Losina-Losinsky, 
  1929, 
  pp. 
  540-541, 
  fig. 
  2, 
  a-g. 
  

  

  Nymphon 
  longitarse 
  Schimkewitsch, 
  1930, 
  pp. 
  434-441, 
  figs. 
  118-120. 
  

  

  