﻿NO. 
  1136. 
  OBSERVATIONS 
  ON 
  THE 
  AST 
  AC 
  W^— 
  FAXON. 
  655 
  

  

  from 
  tlie 
  following,' 
  localities 
  (Professor 
  S. 
  E. 
  Meek's 
  collection): 
  Cedar 
  

   liiver, 
  Cedar 
  llapids, 
  Liiiu 
  County, 
  Iowa; 
  Mapleton 
  Eiver, 
  Mapleton, 
  

   Monona 
  County, 
  Iowa; 
  Boyer 
  Eiver, 
  Arion, 
  Crawford 
  County, 
  Iowa; 
  

   Belmond, 
  Wright 
  County, 
  Iowa; 
  Blue 
  River, 
  Crete, 
  Saline 
  County, 
  

   Nebraska. 
  

  

  CAMBARUS 
  IMMUNIS 
  SPINIROSTRIS 
  Faxon. 
  

  

  W. 
  P. 
  Hay 
  reports 
  this 
  form 
  as 
  found 
  in 
  Terre 
  Haute, 
  Indiana. 
  

  

  The 
  type 
  locality 
  is 
  Obion 
  County, 
  Tennessee. 
  It 
  has 
  also 
  been 
  

   recorded 
  by 
  me 
  from 
  Shawnee 
  County, 
  Kansas. 
  

  

  CAMBARUS 
  PALMERI 
  Faxon. 
  

  

  St. 
  Francis 
  River, 
  at 
  Greenway 
  and 
  Big 
  Bay, 
  Arkansas; 
  Black 
  

   River, 
  at 
  Black 
  Rock, 
  Arkansas; 
  Paragould, 
  Green 
  County, 
  Arkansas 
  

   (Coll. 
  S. 
  E. 
  Meek). 
  

  

  The 
  type 
  specimens 
  of 
  G. 
  palmeri 
  are 
  small 
  individuals 
  of 
  the 
  second 
  

   form 
  of 
  the 
  male 
  and 
  feumles 
  collected 
  in 
  Obion 
  County, 
  Tennessee. 
  

   In 
  the 
  collection 
  of 
  Professor 
  S. 
  E. 
  Meek 
  are 
  a 
  good 
  many 
  examples 
  from 
  

   the 
  above-named 
  localities 
  in 
  northeastern 
  Arkansas 
  which 
  agree 
  

   essentially 
  with 
  the 
  Tennessee 
  specimens, 
  differing 
  from 
  them 
  merely 
  

   in 
  the 
  outline 
  of 
  the 
  rostrum, 
  which 
  is 
  somewhat 
  longer 
  and 
  narrower, 
  

   with 
  more 
  convergent 
  sides. 
  The 
  first 
  abdominal 
  appendages 
  of 
  the 
  

   first 
  form 
  of 
  the 
  male 
  are 
  strongly 
  recurved, 
  as 
  in 
  G. 
  immunis, 
  but 
  the 
  

   rami 
  are 
  much 
  longer 
  than 
  in 
  that 
  species. 
  The 
  largest 
  specimens 
  

   attain 
  to 
  a 
  length 
  of 
  80 
  mm. 
  The 
  dactylus 
  of 
  the 
  large 
  chelii)ed 
  in 
  

   adult 
  individuals 
  varies 
  in 
  length 
  from 
  one 
  and 
  a 
  third 
  to 
  a 
  little 
  over 
  

   twice 
  the 
  length 
  of 
  the 
  inner 
  border 
  of 
  palm. 
  The 
  upper 
  surface 
  of 
  the 
  

   claw 
  is 
  ornamented 
  with 
  scattered, 
  roundish, 
  dark 
  spots. 
  In 
  G. 
  pal- 
  

   meri 
  there 
  is 
  no 
  very 
  evident 
  spine 
  on 
  the 
  lower 
  face 
  of 
  the 
  carpus 
  

   between 
  the 
  median 
  spine 
  and 
  the 
  spine 
  on 
  the 
  internal 
  border. 
  

  

  CAMBARUS 
  PALMERI 
  LONGIMANUS, 
  new 
  subspecies. 
  

   (Pl.ite 
  LXIV, 
  figs. 
  1-6.) 
  

  

  Similar 
  to 
  G. 
  palmeri^ 
  but 
  different 
  in 
  the 
  shape 
  of 
  the 
  hand, 
  the 
  

   body 
  of 
  which 
  (or 
  palm) 
  is 
  thinner 
  (less 
  inflated) 
  and 
  the 
  fingers 
  much 
  

   longer 
  proportioimlly. 
  The 
  antenna, 
  too, 
  are 
  longer, 
  and 
  the 
  rostrum 
  

   as 
  a 
  rule 
  is 
  more 
  deeply 
  excavated. 
  

  

  Dimensions 
  of 
  the 
  chela 
  of 
  a 
  male. 
  Form 
  I, 
  83 
  mm. 
  long: 
  Length 
  

   from 
  point 
  of 
  articulation 
  with 
  carpus 
  to 
  end 
  of 
  dactylus 
  44 
  mm. 
  ; 
  inner 
  

   margin 
  of 
  palm 
  10 
  mm.; 
  dactylus 
  35 
  mm. 
  

  

  Good 
  Land, 
  Indian 
  Territory; 
  Walnut 
  Creek, 
  Kainister, 
  Indian 
  Ter- 
  

   ritory; 
  Arthur, 
  Texas 
  (Coll. 
  Mus. 
  Comp. 
  Zoo!., 
  from 
  S. 
  E. 
  Meek). 
  

  

  Many 
  specimens, 
  including 
  both 
  forms 
  of 
  the 
  male, 
  together 
  with 
  

   females, 
  from 
  each 
  of 
  the 
  above 
  localities. 
  The 
  upper 
  surface 
  of 
  the 
  

   carpus 
  and 
  hand 
  is 
  Sf>otted 
  with 
  dusky; 
  the 
  tips 
  of 
  the 
  fingers 
  are 
  red, 
  

   preceded 
  by 
  a 
  transverse 
  band 
  of 
  dark 
  color 
  which 
  runs 
  along 
  the 
  

   whole 
  outer 
  margin 
  of 
  the 
  hand, 
  

  

  