﻿296 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  LECYTHORHYNCHUS 
  HILGENDORFI 
  (Bohm) 
  

  

  Figure 
  44, 
  a, 
  b 
  

  

  Cornif/er 
  Mlffendorfi 
  Bohm, 
  1879a, 
  pp. 
  187-189, 
  pi. 
  2, 
  figs. 
  3-3d. 
  

   Lecythorhynchus 
  hilgendorfi 
  Bohm, 
  1879c, 
  pp. 
  140-141. 
  — 
  Loman, 
  1911, 
  pp. 
  8-9, 
  

   pi. 
  2, 
  figs. 
  28-29.— 
  Ohshima 
  and 
  Kishida, 
  1947, 
  p. 
  1009, 
  fig. 
  2864. 
  

  

  Collecting 
  records. 
  — 
  Sarawato 
  Chochi, 
  July 
  20-23, 
  1929, 
  A. 
  S. 
  

   Pearse, 
  collector; 
  3 
  specimens. 
  Takami, 
  near 
  Choclii, 
  July 
  23, 
  1929, 
  

   A. 
  S. 
  Pearse, 
  collector 
  ; 
  several 
  specimens. 
  Peiyushan 
  Island 
  ; 
  several 
  

   specimens. 
  

  

  Three 
  species 
  have 
  been 
  proposed 
  for 
  this 
  genus: 
  L 
  hilgendorfi 
  

   from 
  Japan, 
  L. 
  marginatus 
  Cole 
  (1904) 
  from 
  California, 
  and 
  L. 
  ovatus 
  

   Hilton 
  (1942d) 
  from 
  Hawaii. 
  While 
  it 
  is 
  impossible 
  to 
  pass 
  final 
  

   judgment 
  on 
  Hilton's 
  species, 
  it 
  appears 
  to 
  be 
  very 
  closely 
  related 
  to 
  

   the 
  California 
  form 
  (which 
  is 
  found 
  on 
  the 
  Pacific 
  coast 
  as 
  far 
  south 
  

   as 
  Cerro 
  Island, 
  Baja 
  California) 
  and 
  the 
  principal 
  character, 
  the 
  

   serrate 
  palpus, 
  is 
  possibly 
  an 
  illusory 
  one, 
  as 
  I 
  have 
  noticed 
  that 
  

   specimens 
  of 
  L. 
  marginatus 
  when 
  inspected 
  in 
  mtreo 
  seem 
  to 
  have 
  this 
  

   character, 
  but 
  when 
  mounted 
  on 
  a 
  slide, 
  appear 
  as 
  in 
  figure 
  44, 
  d. 
  

   Certainly 
  L. 
  hilgendorfi 
  and 
  L. 
  marginatus 
  are 
  closely 
  related, 
  but 
  

   they 
  can 
  be 
  distinguished 
  on 
  the 
  basis 
  of 
  the 
  structure 
  of 
  the 
  palpus. 
  

   In 
  L. 
  marginatus 
  the 
  sixth 
  joint 
  is 
  inserted 
  at 
  a 
  distinct 
  angle 
  from 
  the 
  

   fifth 
  joint, 
  whereas 
  in 
  L. 
  hilgendorfi 
  this 
  is 
  not 
  so 
  pronounced 
  (fig. 
  44, 
  

   a 
  and 
  c) 
  although 
  Ohshima's 
  (1927d, 
  pi. 
  7, 
  fig. 
  5) 
  figure 
  indicates 
  that 
  

   this 
  condition 
  is 
  present 
  in 
  some 
  specimens. 
  The 
  auxiliary 
  claws 
  are 
  

   much 
  longer 
  in 
  the 
  Japanese 
  species, 
  and 
  the 
  heel 
  of 
  the 
  propodus 
  is 
  

   not 
  as 
  prominent 
  as 
  in 
  L. 
  Tnarginatus. 
  This 
  is 
  probably 
  a 
  littoral 
  or 
  

   subtidal 
  species 
  of 
  central 
  Japan. 
  These 
  records 
  are 
  from 
  the 
  eastern 
  

   coast 
  of 
  Honshu. 
  

  

  T 
  LECYTHORHYNCHUS 
  species 
  

   FiGUKE 
  44, 
  e-f 
  

  

  Collecting 
  record. 
  — 
  Albatross 
  station 
  3730 
  (1 
  immature 
  female). 
  

  

  Although 
  considerably 
  larger 
  than 
  the 
  specimens 
  of 
  L. 
  hilgendorfi., 
  

   this 
  appears 
  to 
  be 
  an 
  immature 
  specimen, 
  to 
  judge 
  from 
  the 
  unde- 
  

   veloped 
  appearance 
  of 
  the 
  oviger 
  and 
  the 
  chelate 
  chelifores. 
  The 
  

   conformation 
  of 
  the 
  palpus 
  and 
  propodus 
  of 
  this 
  specimen 
  suggest 
  

   Lecythorhynchus.^ 
  but 
  its 
  generic 
  affiliation 
  is 
  none 
  too 
  certain. 
  

  

  Family 
  TANYSTYLIDAE 
  Schimkewitsch, 
  1913 
  

  

  Genus 
  TANYSTYLUM 
  Miers, 
  1879 
  

  

  Among 
  the 
  notes 
  that 
  Prof. 
  Hiroshi 
  Ohshima 
  kindly 
  turned 
  over 
  to 
  

   me 
  are 
  drawings 
  and 
  measurements 
  of 
  an 
  undescribed 
  species 
  of 
  

   Tanystylmm. 
  Inasmuch 
  as 
  no 
  species 
  of 
  this 
  genus 
  has 
  been 
  described 
  

  

  