﻿228 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  M 
  

  

  tion 
  noncorneous 
  and 
  somewhat 
  inflated. 
  Hooks 
  on 
  ischiopodites 
  of 
  

   third 
  pereiopods 
  much 
  reduced. 
  

  

  Measurements. 
  — 
  Holotj^pe 
  : 
  Carapace 
  height 
  12.9, 
  width 
  13.4, 
  length 
  

   26.8 
  mm. 
  ; 
  areola 
  width 
  0.0, 
  length 
  10.7 
  mm. 
  ; 
  rostrum 
  width 
  3.8, 
  length 
  

   4.9 
  mm. 
  ; 
  abdomen 
  length 
  25.5 
  mm. 
  ; 
  left 
  chela, 
  length 
  of 
  inner 
  margin 
  

   of 
  palm 
  5.7, 
  width 
  of 
  palm 
  9.3, 
  length 
  of 
  outer 
  margin 
  of 
  hand 
  21.4, 
  

   length 
  of 
  dactyl 
  15.2 
  mm. 
  Allotype 
  : 
  Carapace 
  height 
  13.4, 
  width 
  13.9, 
  

   length 
  29.0 
  mm. 
  ; 
  areola 
  width 
  0.0. 
  length 
  11.5 
  mm. 
  ; 
  rostrum 
  width 
  4.4, 
  

   length 
  5.2 
  mm.; 
  abdomen 
  length 
  28.5 
  mm.; 
  right 
  chela, 
  length 
  of 
  

   inner 
  margin 
  of 
  palm 
  5.7, 
  width 
  of 
  palm 
  9.6, 
  length 
  of 
  outer 
  margin 
  of 
  

   hand 
  21.2, 
  length 
  of 
  dactyl 
  15.7 
  mm. 
  

  

  Tyfe 
  locality. 
  — 
  ^Lower 
  middle 
  part 
  of 
  the 
  Aransas 
  National 
  Wild- 
  

   life 
  Refuge, 
  Aransas 
  County, 
  Texas. 
  "The 
  Aransas 
  Refuge 
  consists 
  

   of 
  some 
  47,000 
  acres 
  on 
  Blackjack 
  Peninsula, 
  which 
  is 
  bounded 
  by 
  

   several 
  bays. 
  This 
  low 
  land 
  is 
  fringed 
  with 
  brackish 
  marsh. 
  The 
  

   gently 
  rolling 
  interior 
  contains 
  much 
  oak 
  brush, 
  mainly 
  live 
  oak 
  

   [Quercus 
  vii^giniana) 
  and 
  myrtleleaf 
  oak 
  {Q. 
  niyrtifolia) 
  . 
  Blackjack 
  

   oak 
  {Q. 
  ma7'-ilandica) 
  is 
  also 
  common. 
  Associated 
  species 
  are 
  prickly 
  

   ash 
  {Xanthoxylum 
  clava-hercidis) 
  and 
  sweet 
  bay 
  {Persea 
  hordonia) 
  . 
  

   Interior 
  grasslands 
  contain 
  swales 
  or 
  'wet 
  weather' 
  ponds, 
  dominated 
  

   by 
  little 
  bluestem 
  {Andropogon 
  scoparius) 
  and 
  associated 
  grasses 
  of 
  

   the 
  genus 
  Paspalum. 
  These 
  grasslands 
  are 
  dotted 
  with 
  groves 
  or 
  

   mottes 
  of 
  live 
  oak. 
  Areas 
  around 
  cattle 
  tanks 
  and 
  some 
  fresh 
  water 
  

   ponds 
  are 
  covered 
  with 
  Bermuda 
  grass 
  {Cynodon 
  daxityloTi) 
  P 
  

   (Stevenson 
  and 
  Griffith, 
  1946, 
  pp. 
  161-162.) 
  Mr. 
  Hedgpeth 
  has 
  in- 
  

   formed 
  me 
  that 
  the 
  area 
  in 
  which 
  the 
  crayfish 
  were 
  taken 
  from 
  burrows 
  

   "is 
  often 
  quite 
  damp 
  with 
  runoff 
  ponds, 
  etc., 
  and 
  is 
  separated 
  from 
  a 
  

   salt 
  marsh 
  area 
  by 
  a 
  low 
  artificial 
  dyke 
  in 
  the 
  form 
  of 
  a 
  road. 
  At 
  

   times 
  in 
  the 
  spring 
  the 
  mud 
  pillars 
  are 
  a 
  conspicuous 
  feature 
  of 
  the 
  

   landscape." 
  

  

  Disposition 
  of 
  types. 
  — 
  The 
  male, 
  form 
  I, 
  holotype 
  and 
  second-form 
  

   male 
  morphotype 
  (No. 
  85146) 
  and 
  the 
  female 
  allotype 
  (No. 
  85147) 
  

   are 
  deposited 
  in 
  the 
  United 
  States 
  National 
  Museum. 
  Paratypes, 
  

   consisting 
  of 
  a 
  first-form 
  male 
  and 
  a 
  female, 
  are 
  in 
  my 
  personal 
  collec- 
  

   tion 
  at 
  the 
  University 
  of 
  Virginia, 
  H.H.H. 
  No. 
  5-2147-1. 
  

  

  Specimens 
  examined. 
  — 
  Texas 
  : 
  Aransas 
  County., 
  type 
  locality, 
  Janu- 
  

   ary 
  27, 
  1947, 
  one 
  male, 
  form 
  I, 
  one 
  male, 
  form 
  II, 
  R. 
  P. 
  Allen, 
  coll.; 
  

   Aransas 
  Refuge, 
  McHoughs 
  Well, 
  May 
  21, 
  1947, 
  one 
  male, 
  form 
  I, 
  

   one 
  female 
  J. 
  W. 
  Hedgpeth, 
  coll. 
  ; 
  Aransas 
  Refuge, 
  San 
  Carlos 
  Field, 
  

   December 
  28, 
  1946, 
  one 
  female, 
  R. 
  P. 
  Allen, 
  coll. 
  Brazona 
  County., 
  

   Brazoria, 
  one 
  female, 
  U.S.N.M. 
  No. 
  17280, 
  William 
  Lloyd, 
  coll. 
  

   Victoria 
  County^ 
  Victoria, 
  one 
  male, 
  form 
  I, 
  U.S.N.M. 
  No. 
  17279, 
  

   William 
  Lloyd, 
  coll. 
  Louisiana: 
  Orleans 
  PaHsh., 
  New 
  Orleans, 
  one 
  

   female, 
  U.S.N.M. 
  No. 
  2262, 
  G. 
  Kohn, 
  coll. 
  DeSoto 
  Parish, 
  Frierson, 
  

  

  