﻿PROCEEDINGS 
  OF 
  THE 
  UNITED 
  STATES 
  NATIONAL 
  MUSEUM 
  

  

  issued 
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  SMITHSONIAN 
  INSTITUTION 
  

  

  U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  Vol. 
  103 
  Washington: 
  1954 
  No. 
  3333 
  

  

  NORTH 
  AMERICAN 
  TRICLAD 
  TURBELLARIA, 
  XIII: 
  

   THREE 
  NEW 
  CAVE 
  PLANARIANS 
  

  

  By 
  LiBBiE 
  H. 
  Hyman 
  

  

  Previously 
  (Hyman, 
  1937, 
  1939, 
  1945) 
  I 
  have 
  described 
  a 
  total 
  of 
  

   11 
  species 
  of 
  planarians 
  from 
  the 
  waters 
  of 
  North 
  American 
  caves. 
  

   Comment 
  was 
  made 
  in 
  these 
  articles 
  on 
  the 
  extensive 
  speciation 
  ex- 
  

   hibited 
  by 
  the 
  cave 
  planarians 
  of 
  the 
  United 
  States. 
  It 
  was 
  pointed 
  

   out 
  that 
  every 
  locality 
  appears 
  to 
  have 
  a 
  different 
  species 
  of 
  cave 
  

   planarian 
  and 
  that 
  the 
  investigation 
  of 
  caves 
  in 
  new 
  localities 
  in- 
  

   evitably 
  reveals 
  new 
  species 
  of 
  these 
  animals. 
  The 
  present 
  report 
  is 
  

   based 
  on 
  collections 
  from 
  caves 
  in 
  three 
  new 
  localities 
  and 
  each 
  lo- 
  

   caHty 
  is 
  again 
  found 
  to 
  harbor 
  a 
  new 
  and 
  different 
  species 
  of 
  cave 
  

   planarian. 
  As 
  generic 
  and 
  familial 
  definitions 
  have 
  been 
  presented 
  in 
  

   my 
  previous 
  articles 
  on 
  cave 
  planarians, 
  it 
  appears 
  unnecessary 
  to 
  

   repeat 
  them 
  here. 
  

  

  Family 
  PLANARiroAE 
  

  

  Phagocata 
  cavemicola, 
  new 
  species 
  

  

  FiGUBE 
  65,o-c 
  

  

  Material. 
  — 
  Five 
  specimens 
  sent 
  by 
  the 
  U. 
  S. 
  National 
  Museum 
  

   (USNM). 
  

  

  Form. 
  — 
  Small, 
  slender, 
  elongate 
  (fig. 
  65, 
  a), 
  around 
  7 
  to 
  8 
  mm. 
  long, 
  

   probably 
  up 
  to 
  10 
  mm. 
  in 
  length; 
  anterior 
  end 
  appears 
  slightly 
  rounded 
  

   as 
  in 
  figure 
  65,a 
  in 
  some 
  of 
  the 
  specimens, 
  truncate 
  or 
  slightly 
  in- 
  

   dented 
  in 
  others 
  (fig. 
  65, 
  b) 
  . 
  

  

  Color. 
  — 
  White 
  in 
  life, 
  according 
  to 
  the 
  collector, 
  but 
  turns 
  brown 
  on 
  

   preservation. 
  

  

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  563 
  

  

  