﻿ARTICLE 
  V. 
  

  

  SUPPLEMENT 
  

  

  TO 
  THE 
  

  

  EXTINCT 
  BATRACHIA 
  AND 
  REPTILIA 
  OF 
  NORTH 
  AMERICA. 
  

  

  I. 
  CATALOGUE 
  OF 
  THE 
  AIR 
  BREATHING 
  VERTEBRATA 
  FROM 
  THE 
  COAL 
  MEASURES 
  

  

  OF 
  LINTON, 
  OHIO, 
  

  

  BY 
  EDWARD 
  D. 
  COPE, 
  A.M. 
  

  

  In 
  the 
  last 
  descriptive 
  catalogue 
  of 
  the 
  species 
  of 
  the 
  character 
  here 
  considered, 
  

   that 
  contained 
  in 
  the 
  author's 
  " 
  Synopsis 
  of 
  the 
  Extinct 
  Batrachia, 
  etc., 
  of 
  North 
  

   America," 
  nine 
  only 
  were 
  described 
  ; 
  the 
  number 
  is 
  now 
  increased 
  to 
  twenty-six. 
  

   This 
  addition, 
  as 
  well 
  as 
  the 
  creation 
  of 
  the 
  original 
  collection, 
  is 
  due 
  to 
  the 
  attention 
  

   of 
  Professor 
  J. 
  S. 
  Newberry, 
  now 
  Director 
  of 
  the 
  Geological 
  Survey 
  of 
  Ohio, 
  for 
  

   whom 
  an 
  extended 
  and 
  illustrated 
  report 
  is 
  now 
  in 
  course 
  of 
  preparation. 
  

  

  The 
  result 
  of 
  the 
  newer 
  investigation 
  into 
  their 
  structure 
  confirms 
  the 
  opinion 
  to 
  

   which 
  the 
  author 
  was 
  originally 
  led, 
  that 
  all 
  the 
  air-breathing 
  vertebrata 
  of 
  the 
  coal 
  

   measures 
  were 
  Batrachians, 
  and 
  that 
  true 
  Reptiles 
  did 
  not 
  then 
  exist. 
  Any 
  gene- 
  

   ralization 
  to 
  this 
  effect 
  extending 
  to 
  the 
  whole 
  earth 
  is 
  premature, 
  and 
  scarcely 
  likely 
  

   to 
  be 
  verified 
  ; 
  nevertheless, 
  it 
  is 
  still 
  applicable 
  to 
  the 
  localities 
  with 
  which 
  we 
  are 
  

   now 
  acquainted. 
  The 
  Batrachians 
  from 
  Linton 
  present 
  the 
  most 
  varied 
  forms 
  ; 
  some 
  

   are 
  broad 
  and 
  stout 
  bodied, 
  others 
  lizard-like 
  ; 
  some 
  exhibit 
  heavily 
  mailed 
  surfaces, 
  

   and 
  others 
  are 
  slender 
  and 
  attenuated 
  as 
  snakes. 
  They 
  are 
  here 
  referred 
  to 
  twelve 
  

   genera. 
  These 
  may 
  be 
  arranged 
  as 
  follows, 
  in 
  accordance 
  with 
  their 
  general 
  appear- 
  

   ance 
  and 
  structure. 
  

  

  Group 
  I. 
  Snake-like 
  forms 
  without 
  limbs 
  : 
  Plilegethontia, 
  Dolichosoma, 
  Molgophis. 
  

  

  Group 
  II. 
  Elongate 
  forms 
  with 
  limbs 
  and 
  lanciform 
  heads 
  ; 
  O'estocephalus, 
  JPty- 
  

   onius, 
  Lepterpeton. 
  

  

  Group 
  III. 
  Lizard-like 
  forms 
  with 
  limbs 
  and 
  broad 
  frog-like 
  heads 
  : 
  Pelion, 
  

   Saurojileara, 
  Tuditanus, 
  ? 
  Leptophractus. 
  

  

  