﻿306 
  

  

  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  VOL. 
  

  

  Type 
  locality. 
  — 
  Benoki, 
  Okinawa 
  islands. 
  Collected 
  by 
  Shimoto 
  

   Toma, 
  between 
  January 
  and 
  March 
  1932. 
  

  

  Description, 
  — 
  Trunk 
  fat, 
  knobby. 
  Integument 
  granular, 
  the 
  granu- 
  

   lations 
  coarse, 
  on 
  elevated 
  portions 
  of 
  the 
  trunk. 
  Lateral 
  processes 
  

   large, 
  nearly 
  as 
  long 
  as 
  the 
  length 
  of 
  the 
  trunk 
  segment, 
  well 
  separated. 
  

   First 
  trunk 
  segment 
  somewhat 
  rhombic, 
  two-thirds 
  as 
  long 
  as 
  wide. 
  

   Eye 
  tubercle 
  near 
  anterior 
  margin, 
  low. 
  On 
  the 
  posterior 
  edge 
  of 
  

   each 
  trunk 
  segment 
  there 
  is 
  a 
  rounded 
  dorsal 
  tubercle. 
  

  

  Proboscis 
  large, 
  slightly 
  more 
  than 
  one-third 
  as 
  long 
  as 
  trunk, 
  basal 
  

   half 
  cylindrical, 
  distal 
  half 
  bluntly 
  conical. 
  

  

  Abdomen 
  cylindrical, 
  shorter 
  than 
  length 
  of 
  fourth 
  trunk 
  segment. 
  

  

  Oviger 
  8-jointed, 
  with 
  a 
  terminal 
  claw. 
  Last 
  two 
  segments 
  bearing 
  

   spines 
  near 
  their 
  outer 
  edge. 
  

  

  Third 
  leg: 
  First 
  coxa 
  almost 
  as 
  large 
  as 
  lateral 
  process, 
  with 
  a 
  

   notch 
  on 
  the 
  distal 
  posterior 
  part. 
  Second 
  and 
  third 
  coxae 
  diminishing 
  

   in 
  size. 
  Femur 
  longer 
  than 
  either 
  tibia, 
  with 
  swellings 
  on 
  the 
  inner 
  

   basal 
  and 
  dorsodistal 
  regions. 
  There 
  are 
  short 
  spines 
  toward 
  the 
  distal 
  

   end 
  of 
  the 
  femur 
  and 
  first 
  tibia. 
  On 
  the 
  distal 
  ventral 
  margin 
  of 
  the 
  

   second 
  tibia, 
  and 
  the 
  sole 
  of 
  the 
  tarsus 
  and 
  propodus, 
  is 
  a 
  row 
  of 
  short 
  

   spines. 
  Terminal 
  claw 
  slightly 
  curved, 
  about 
  half 
  as 
  long 
  as 
  propodus, 
  

   with 
  small, 
  deciduous 
  auxiliaries. 
  Genital 
  pore 
  on 
  ventral 
  surface 
  of 
  

   second 
  coxae 
  of 
  last 
  two 
  pairs 
  of 
  legs 
  in 
  both 
  sexes. 
  Eggs 
  about 
  0.07 
  

   mm. 
  in 
  diameter. 
  

  

  Measurements. 
  — 
  As 
  follows 
  : 
  

  

  Mm. 
  

  

  Proboscis 
  1. 
  25 
  

  

  Length 
  first 
  trunk 
  segment 
  . 
  87 
  

  

  Length 
  last 
  trunk 
  segment 
  . 
  7 
  

  

  Abdomen 
  . 
  6 
  

  

  Total 
  length 
  trunk 
  2. 
  82 
  

  

  Second 
  leg: 
  

  

  Coxae 
  

  

  Femur 
  

  

  First 
  tibia 
  

  

  Second 
  tibia 
  

  

  Tarsus 
  

  

  Propodus 
  

  

  Terminal 
  claw. 
  

  

  Mm. 
  

  

  1.2 
  

  

  . 
  75 
  

  

  .7 
  

  

  .6 
  

  

  .12 
  

  

  .5 
  

  

  .2 
  

  

  Total 
  length 
  leg 
  3. 
  97 
  

  

  Remarks. 
  — 
  This 
  new 
  species 
  resembles 
  very 
  closely 
  P. 
  pusillum 
  

   Dohrn, 
  which 
  occurs 
  in 
  the 
  Bay 
  of 
  Naples 
  and 
  is 
  characterized 
  by 
  the 
  

   granular 
  integument 
  and 
  the 
  presence 
  of 
  auxiliary 
  claws. 
  The 
  one 
  

   distinct 
  difference 
  is 
  that 
  the 
  genital 
  opening 
  occurs 
  on 
  the 
  dorsal 
  side 
  

   in 
  P. 
  pusillum, 
  whereas 
  in 
  this 
  species 
  it 
  is 
  on 
  the 
  ventral 
  side. 
  No 
  

   observations 
  have 
  been 
  made 
  of 
  the 
  male 
  of 
  Dohrn's 
  species. 
  Bouvier's 
  

   statement 
  that 
  there 
  are 
  no 
  tubercles 
  on 
  the 
  median 
  dorsal 
  line 
  of 
  the 
  

   trunk 
  in 
  P. 
  pusillum 
  seems 
  to 
  be 
  an 
  error 
  made 
  by 
  him 
  in 
  reading 
  

   Dohrn's 
  original 
  description. 
  P. 
  ungellatwm 
  Loman, 
  which 
  occurs 
  

   along 
  the 
  coast 
  of 
  Sagami 
  [immediately 
  south 
  of 
  Tokyo 
  Bay], 
  closely 
  

   resembles 
  P. 
  henohianuon. 
  [At 
  this 
  point 
  Ohshima's 
  description 
  dis- 
  

  

  