﻿254 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  Remarks. 
  — 
  This 
  species 
  resembles 
  Nymphon 
  leptocheles 
  Sars, 
  from 
  

   which 
  it 
  differs 
  principally 
  in 
  the 
  structure 
  of 
  the 
  palpus, 
  the 
  fourth 
  

   joint 
  beinrj 
  much 
  shorter, 
  the 
  longer 
  auxiliary 
  claws, 
  and 
  the 
  coarse 
  

   toothed 
  spines 
  of 
  the 
  oviger. 
  The 
  specimens 
  exhibit 
  some 
  variation 
  

   in 
  the 
  length 
  of 
  the 
  tarsal 
  joint, 
  conformation 
  of 
  the 
  palpus, 
  and 
  

   setose 
  investiture 
  of 
  the 
  trunk 
  and 
  legs, 
  but 
  the 
  ovigers 
  and 
  chelae 
  are 
  

   comparatively 
  constant 
  (in 
  fig. 
  23, 
  c 
  and 
  A, 
  the 
  differences 
  are 
  exag- 
  

   gerated 
  by 
  the 
  angles 
  from 
  which 
  they 
  were 
  drawn 
  ) 
  , 
  and 
  I 
  suspect 
  that 
  

   intermediate 
  forms 
  will 
  eventually 
  be 
  collected. 
  This 
  is 
  evidently 
  a 
  

   warm-water 
  species 
  as 
  all 
  the 
  records 
  are 
  south 
  of 
  33°. 
  

  

  This 
  species 
  is 
  named 
  for 
  Dr. 
  Masui 
  Kodani, 
  of 
  the 
  University 
  of 
  

   Rochester, 
  who 
  has 
  been 
  of 
  great 
  help 
  in 
  translating 
  Japanese 
  ref- 
  

   erences. 
  

  

  NYMPHON 
  MICKOPEDES. 
  new 
  species 
  

  

  Figure 
  24 
  

  

  Holotype 
  (waZe).— 
  TJ.S.N.M. 
  No. 
  80591, 
  Albatross 
  station 
  5080, 
  

   latitude 
  34°10'30" 
  N., 
  138°40' 
  E., 
  505 
  fathoms, 
  38.7° 
  F., 
  October 
  19, 
  

   1906. 
  

  

  Description. 
  — 
  Trunk 
  elongate, 
  slender, 
  lateral 
  processes 
  separated 
  

   by 
  almost 
  twice 
  their 
  diameter 
  and 
  not 
  much 
  longer 
  than 
  broad. 
  Neck 
  

   about 
  three 
  times 
  as 
  long 
  as 
  wide, 
  the 
  bases 
  of 
  the 
  ovigers 
  near 
  the 
  

   anterior 
  end 
  just 
  beyond 
  the 
  origin 
  of 
  the 
  scape. 
  Eye 
  tubercle 
  a 
  low 
  

   rounded 
  mound, 
  eyes 
  absent. 
  

  

  Proboscis 
  about 
  as 
  long 
  as 
  neck, 
  cylindrical, 
  and 
  squarish 
  at 
  tip. 
  

  

  Abdomen 
  slender, 
  papilliform, 
  about 
  three 
  times 
  as 
  long 
  as 
  wide, 
  

   directed 
  at 
  an 
  angle 
  of 
  about 
  45°. 
  

  

  Chelifore: 
  Scape 
  as 
  long 
  as 
  proboscis, 
  moderately 
  robust; 
  chela 
  

   longer 
  than 
  scape, 
  fingers 
  slightly 
  longer 
  than 
  palm, 
  almost 
  straight 
  

   but 
  curved 
  and 
  crossing 
  at 
  the 
  tip. 
  Both 
  fingers 
  are 
  armed 
  with 
  

   numerous 
  close-set 
  spinules. 
  

  

  Palpus 
  longer 
  than 
  proboscis, 
  slender, 
  second 
  and 
  third 
  joints 
  sub- 
  

   equal, 
  fourth 
  and 
  fifth 
  subequal 
  but 
  together 
  shorter 
  than 
  the 
  third. 
  

   Last 
  three 
  joints 
  invested 
  with 
  fine 
  setae. 
  

  

  Oviger 
  rather 
  long 
  and 
  slender, 
  fourth 
  joint 
  slightly 
  curved, 
  with 
  

   a 
  slight 
  projection 
  at 
  the 
  proximal 
  fourth 
  on 
  the 
  outer 
  side, 
  fifth 
  joint 
  

   not 
  quite 
  twice 
  as 
  long 
  as 
  fourth, 
  nearly 
  straight, 
  slightly 
  expanded 
  

   distally. 
  Compound 
  spines 
  of 
  terminal 
  segments 
  large, 
  with 
  usually 
  

   two 
  pairs 
  of 
  coarse 
  denticulations. 
  Terminal 
  claw 
  as 
  long 
  as 
  joint, 
  

   with 
  half 
  a 
  dozen 
  well-spaced 
  teeth. 
  Formula 
  : 
  9 
  : 
  6 
  : 
  6 
  : 
  6 
  : 
  : 
  6. 
  

  

  Leg: 
  First 
  and 
  third 
  coxae 
  slightly 
  longer 
  than 
  wide, 
  subequal. 
  

   Second 
  coxa 
  about 
  twice 
  as 
  long 
  as 
  first 
  and 
  third 
  together. 
  Femur 
  

   about 
  one-and-a-half 
  times 
  as 
  long 
  as 
  the 
  coxae, 
  weakly 
  arched 
  and 
  

   with 
  a 
  low 
  projection 
  on 
  the 
  mid 
  ventral 
  surface 
  which 
  is 
  the 
  site 
  of 
  

   a 
  pore. 
  First 
  tibia 
  slightly 
  longer 
  than 
  femur, 
  about 
  half 
  as 
  long 
  as 
  

  

  