﻿AND 
  REPTILIA 
  OF 
  NOliTII 
  AMERICA. 
  11 
  

  

  Measurements. 
  M. 
  

  

  Length 
  of 
  vertebral 
  column 
  between 
  pelvis 
  and 
  humerus, 
  0.070 
  

  

  " 
  " 
  " 
  " 
  in 
  front 
  of 
  humerus, 
  .0233 
  

  

  " 
  " 
  caudal 
  series 
  preserved, 
  .070 
  

  

  " 
  " 
  humerus, 
  about 
  .0185 
  

  

  " 
  " 
  ulna 
  and 
  radius, 
  .012 
  

  

  " 
  " 
  part 
  of 
  fore 
  limb 
  in 
  line, 
  .0455 
  

  

  " 
  '• 
  ilium, 
  .007 
  

  

  " 
  " 
  femur, 
  .020 
  

   Number 
  of 
  chevron 
  rods 
  in 
  .004 
  ; 
  seven. 
  

  

  A 
  single 
  specimen 
  of 
  this 
  Batrachian 
  was 
  obtained 
  by 
  Prof. 
  Newberry, 
  at 
  Linton 
  ; 
  it 
  is 
  in 
  a 
  good 
  state 
  of 
  

   preservation. 
  

  

  SAU.ROPLEURA 
  DIGITATA, 
  Cope. 
  

   Transac. 
  Amer. 
  Philos. 
  Soc, 
  1863, 
  XIV., 
  p. 
  15. 
  

  

  TUDITANUS, 
  Cope. 
  

   Proceed. 
  Amer. 
  Philos. 
  Soc, 
  1871, 
  177. 
  

  

  Cranium 
  broad 
  flat, 
  orbits 
  anterior, 
  bones 
  more 
  or 
  less 
  sculptured. 
  Teeth 
  on 
  

   premaxillary 
  and 
  maxillary 
  bones 
  of 
  nearly 
  equal 
  sizes. 
  Three 
  pectoral 
  shields 
  sculp- 
  

   tured 
  external^. 
  Form 
  lizard 
  like 
  ; 
  two 
  pairs 
  of 
  limbs 
  of 
  medium 
  proportions. 
  

  

  This 
  genus 
  is 
  established 
  on 
  two 
  species 
  of 
  which 
  the 
  collection 
  contains 
  nearly 
  

   entire 
  specimens. 
  In 
  these 
  no 
  chevron 
  abdominal 
  rods 
  or 
  scales 
  can 
  -be 
  discovered, 
  

   and 
  it 
  is 
  not 
  probable 
  that 
  they 
  exist. 
  The 
  presence 
  of 
  the 
  pectoral 
  shields 
  distinguishes 
  

   this 
  genus 
  from 
  Dendrerpeton; 
  Owen, 
  w 
  T 
  hile 
  the 
  thoracic 
  plates 
  and 
  lack 
  of 
  ventral 
  rods 
  

   separate 
  it 
  from 
  Sauropleura. 
  The 
  plates 
  may, 
  however, 
  be 
  found 
  in 
  the 
  latter; 
  

   should 
  the 
  rods 
  be 
  found 
  in 
  Tuditanus, 
  which 
  is 
  not 
  probable, 
  these 
  genera 
  must 
  be 
  

   united. 
  I 
  associate 
  with 
  the 
  T. 
  punctulatus, 
  and 
  T. 
  hrevirostris 
  three 
  other 
  species 
  

   known 
  only 
  from 
  crania, 
  a 
  reference 
  to 
  be 
  finally 
  criticized 
  when 
  more 
  is 
  known 
  of 
  

   them. 
  They 
  are 
  all 
  evidently 
  allied. 
  The 
  largest 
  is 
  T. 
  huxleyi 
  ; 
  the 
  next, 
  T. 
  radiatus, 
  

   is 
  named 
  from 
  elevated 
  radiating 
  ridges 
  of 
  the 
  cranial 
  sculpture, 
  T. 
  mordax 
  has 
  a 
  

   strongly 
  sculptured 
  cranium, 
  and 
  large 
  premaxillary 
  teeth, 
  while 
  in 
  T. 
  obtusus 
  the 
  

   orbits 
  are 
  less 
  anterior, 
  and 
  the 
  teeth 
  small. 
  I 
  formerly 
  described 
  it 
  as 
  a 
  Dendrer- 
  

   peton. 
  

  

  TUDITANUS 
  PUNCTULATUS, 
  Cope. 
  Sp. 
  Nov. 
  

  

  This 
  amphibian 
  is 
  known 
  from 
  a 
  single 
  individual 
  well 
  preserved 
  on 
  the 
  opposite 
  halves 
  of 
  a 
  block 
  of 
  slate. 
  

   The 
  head, 
  fore-limbs, 
  and 
  twenty-three 
  consecutive 
  vertebras 
  with 
  ribs 
  are 
  well 
  defined, 
  but 
  of 
  pelvis 
  and 
  hind 
  limbs, 
  

   nothing 
  is 
  visible. 
  

  

  The 
  cranium 
  is 
  less 
  exposed 
  posteriorly 
  than 
  in 
  the 
  other 
  species 
  referred 
  to 
  the 
  genus, 
  and 
  has 
  a 
  triangular 
  

   outline 
  with 
  narrowed 
  but 
  obtuse 
  muzzle. 
  If 
  I 
  do 
  not 
  mistake 
  the 
  outline 
  of 
  the 
  left 
  orbit, 
  it 
  is 
  near 
  the 
  transverse 
  

   line 
  which 
  divides 
  the 
  head 
  equally. 
  The 
  surface 
  of 
  a 
  considerable 
  portion 
  is 
  preserved, 
  and 
  is 
  sculptured 
  by 
  small 
  

   pits 
  placed 
  closely, 
  the 
  intervals 
  in 
  a 
  very 
  few 
  parts 
  assuming 
  the 
  form 
  of 
  ridges. 
  The 
  sculpture 
  is 
  thus 
  more 
  minute 
  

  

  