﻿FIFTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  I908 
  

  

  37 
  

  

  The 
  following 
  North 
  American 
  genera 
  and 
  species 
  are 
  noted. 
  

   Those 
  from 
  the 
  area 
  of 
  the 
  State 
  of 
  New 
  York 
  or 
  its 
  borders 
  are 
  

   marked 
  bv 
  an 
  asterisk: 
  

  

  Eurypterus 
  

   *approximatus 
  Hall 
  & 
  Clarke 
  

  

  boylei 
  IV 
  hit 
  eaves 
  

  

  kokomoensis 
  Miller 
  & 
  Gurley 
  

   *lacustris 
  Hall 
  

   *mansfieldi 
  Hall 
  

   *maria 
  Clarke 
  

  

  mazonensis 
  Meek 
  & 
  Worthen 
  

   *microphthalmus 
  Hall 
  

   *pachychirus 
  Hall 
  

   *pennsylvanicus 
  Hall 
  

   *pittsfordensis 
  Sarle 
  

   *potens 
  Hall 
  

   *prominens 
  Hall 
  

   *pustulosus 
  Hall 
  

   *remipes 
  DeKay 
  

   *robustus 
  Harlan 
  

   *stylus 
  Hall 
  

  

  sp. 
  nov. 
  

  

  Eusarcus 
  

  

  *cicerops 
  {Clarke) 
  

  

  newlini 
  (Claypole) 
  

   *scorpionis 
  Grofe 
  & 
  Pitt 
  

  

  Dolichopterus 
  

   *macrochirus 
  Hall 
  

   *otisius 
  (Clarke) 
  

   *sp. 
  nov. 
  

  

  Drepanopterus 
  

   sp. 
  nov. 
  

  

  Echinognathus 
  

  

  clevelandi 
  Walcott 
  

  

  Hughmilleria 
  

  

  *sha\vangiink 
  Clarke 
  

   *socialis 
  Sarle 
  

  

  var. 
  robustus 
  Sarle 
  

  

  Pterygotus 
  

   *cobbi 
  Hall 
  

   *grandis 
  (Pohlman) 
  

   *globicaudatus 
  Pohlman 
  

   *macrophthalmus 
  Hall 
  

   *sp. 
  nov. 
  

  

  Strabops 
  

  

  thacheri 
  Beecher 
  

  

  Stylonurus 
  (Ctenopterus) 
  

   *beecheri 
  {Hall) 
  

   *cestrotus 
  {Clarke) 
  

   *excelsior 
  Hall 
  

   "^myops 
  (Clarke) 
  

   "^sp. 
  nov. 
  

   *sp. 
  

   *sp. 
  

   *sp. 
  

   *sp. 
  

  

  This 
  list 
  shows 
  that 
  with 
  the 
  exception 
  of 
  six 
  species 
  all 
  Ameri- 
  

   can 
  forms 
  known 
  thus 
  far 
  have 
  come 
  either 
  from 
  New 
  York 
  or 
  

   closely 
  adjoining 
  districts. 
  

  

  The 
  following 
  species 
  names 
  have 
  been 
  rejected 
  as 
  synonyms: 
  

  

  E. 
  eriensis 
  Whitfield 
  

   E. 
  giganteus 
  Pohlman 
  

   Eusarcus 
  grandis 
  Grote 
  & 
  Pitt 
  

   Pterygotus 
  acuticaudatus 
  Pohlman 
  

   P. 
  buffaloensis 
  Pohlman 
  

  

  P. 
  bilobus 
  Pohlman 
  

  

  P. 
  cummingsi 
  Grote 
  & 
  Pitt 
  

  

  P. 
  osborni 
  Hall 
  

  

  P. 
  quadraticaudatus 
  Pohlman 
  

  

  