﻿260 
  

  

  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  VOL. 
  98 
  

  

  Chelifore: 
  Scape 
  shorter 
  than 
  proboscis, 
  relatively 
  stout. 
  Chela 
  

   heavy, 
  as 
  long 
  as 
  scape, 
  palm 
  somewhat 
  longer 
  than 
  fingers, 
  fingers 
  

   wedge 
  shaped, 
  armed 
  with 
  fine 
  short 
  teeth. 
  

  

  Palpus 
  relatively 
  thick, 
  somewhat 
  longer 
  than 
  proboscis, 
  second 
  

   and 
  third 
  joints 
  subequal, 
  fourth 
  joint 
  slightly 
  shorter 
  than 
  fifth, 
  the 
  

   two 
  together 
  a 
  little 
  longer 
  than 
  the 
  third 
  joint, 
  terminal 
  joints 
  armed 
  

   with 
  fine 
  setae. 
  

  

  Oviger: 
  Fourth 
  joint 
  about 
  half 
  as 
  long 
  as 
  fifth, 
  slightly 
  curved 
  

   in 
  its 
  distal 
  third, 
  fifth 
  joint 
  straight, 
  moderately 
  clavate. 
  Com- 
  

   pound 
  spines 
  small, 
  close 
  set, 
  with 
  fine 
  denticulations 
  and 
  a 
  pair 
  of 
  

   coarser 
  ones 
  near 
  the 
  base. 
  Terminal 
  claw 
  with 
  about 
  20 
  very 
  fine 
  

   spinules, 
  formula 
  : 
  18 
  : 
  17 
  : 
  17 
  : 
  15 
  : 
  : 
  20. 
  

  

  Third 
  leg: 
  Third 
  coxa 
  slightly 
  longer 
  than 
  first, 
  second 
  almost 
  

   twice 
  as 
  long 
  as 
  the 
  two 
  together. 
  Femur 
  about 
  twice 
  as 
  long 
  as 
  sec- 
  

   ond 
  coxa, 
  slightly 
  arched. 
  First 
  tibia 
  not 
  conspicuously 
  longer 
  than 
  

   femur, 
  second 
  tibia 
  half 
  again 
  as 
  long 
  as 
  first. 
  Femur 
  and 
  tibiae 
  

   sparsely 
  armed 
  with 
  very 
  fine 
  setae. 
  Tarsus 
  and 
  propodus 
  subequal, 
  

   tarsus 
  with 
  a 
  row 
  of 
  well-spaced 
  short 
  spines 
  along 
  the 
  ventral 
  sur- 
  

   face. 
  Propodus 
  moderately 
  arched, 
  with 
  two 
  large 
  spines 
  near 
  the 
  

   heel 
  and 
  a 
  row 
  of 
  small 
  spines 
  along 
  the 
  rest 
  of 
  the 
  sole. 
  Terminal 
  

   claw 
  slightly 
  more 
  than 
  half 
  as 
  long 
  as 
  propodus, 
  curved. 
  Auxiliary 
  

   claw 
  about 
  half 
  as 
  long 
  as 
  terminal 
  claw. 
  

  

  MeasureTnents. 
  — 
  As 
  follows 
  : 
  

  

  Mm. 
  

  

  Proboscis 
  2. 
  

  

  Trunk 
  6. 
  

  

  Second 
  lateral 
  process, 
  width 
  3. 
  1 
  

  

  Abdomen 
  . 
  75 
  

  

  Scape 
  2. 
  

  

  Chela 
  2. 
  25 
  

  

  Palpus 
  3. 
  

  

  Third 
  leg 
  : 
  Mm. 
  

  

  First 
  coxa 
  1. 
  

  

  Second 
  coxa 
  3. 
  5 
  

  

  Third 
  coxa 
  1. 
  25 
  

  

  Femur 
  7. 
  

  

  First 
  tibia 
  7. 
  5 
  

  

  Second 
  tibia 
  10. 
  5 
  

  

  Tarsus 
  1. 
  5 
  

  

  Propodus 
  1. 
  5 
  

  

  Terminal 
  claw 
  1. 
  

  

  Auxiliary 
  claw 
  . 
  4 
  

  

  Remarks. 
  — 
  Although 
  taken 
  at 
  the 
  same 
  station 
  as 
  the 
  preceding 
  

   species, 
  N. 
  Jieteros'pinmn 
  is 
  markedly 
  different 
  in 
  the 
  structure 
  of 
  the 
  

   chela, 
  position 
  of 
  the 
  large 
  spines 
  on 
  the 
  propodus, 
  and 
  the 
  finely 
  

   serrated 
  compound 
  spines 
  of 
  the 
  oviger. 
  Some 
  of 
  these 
  characters 
  

   suggest 
  Nymphon 
  grossipes, 
  but 
  I 
  have 
  not 
  noticed 
  any 
  specimens 
  of 
  

   this 
  highly 
  variable 
  species 
  in 
  which 
  the 
  large 
  spines 
  of 
  the 
  propodus 
  

   are 
  restricted 
  to 
  the 
  heel 
  as 
  in 
  this 
  specimen. 
  

  

  