﻿252 
  THE 
  EXTINCT 
  BATRACHIA, 
  REPTILIA, 
  &C. 
  

  

  EXPLANATION 
  OF 
  WOOD 
  CUTS— 
  Continued. 
  

  

  Fig. 
  41, 
  p. 
  154. 
  — 
  Scapulo-coracoid 
  of 
  same, 
  one-third 
  natural 
  size. 
  

  

  Fig. 
  42, 
  p. 
  155. 
  — 
  Ghelone 
  midas, 
  Linn, 
  carapace, 
  from 
  Cuvier. 
  

  

  Fig. 
  43, 
  p. 
  160. 
  — 
  Taphrosphys 
  molops, 
  Cope, 
  anterior 
  and 
  posterior 
  lobes 
  of 
  the 
  plastron, 
  shaded 
  parts 
  wanting; 
  at 
  the 
  

  

  time 
  of 
  making 
  the 
  drawing 
  the 
  intersternals 
  had 
  not 
  been 
  found, 
  and 
  the 
  cut 
  is 
  therefore 
  unfinished. 
  M. 
  mesos- 
  

  

  ternal; 
  Up., 
  episternal; 
  Hyo. 
  and 
  Hyp., 
  hyosternal 
  and 
  hyposternal; 
  Xi, 
  xiphisternal; 
  Pb., 
  pubic 
  sutural 
  scar; 
  

  

  Is., 
  ischiadic 
  do. 
  ; 
  Qui., 
  gular 
  scute; 
  Feet., 
  pectoral; 
  Intg., 
  intergular 
  scutum. 
  

   Fig. 
  44, 
  p. 
  161. 
  — 
  Taphrosphys 
  molops, 
  Cope, 
  part 
  of 
  first 
  and 
  second 
  costal 
  bones, 
  showing 
  axillary 
  pit. 
  

   Fig. 
  45, 
  p. 
  165. 
  — 
  Nuchal 
  marginal 
  bone 
  of 
  Taphrosphys 
  sulcatus, 
  Leidy. 
  Do., 
  p. 
  166, 
  restoration 
  of 
  plastron 
  of 
  the 
  

  

  same, 
  to 
  show 
  form 
  of 
  episterno- 
  hyosternal 
  suture; 
  form 
  of 
  mesosternal 
  erroneous; 
  it 
  should 
  be 
  diamond-shaped 
  

  

  antero-posteriorly. 
  

   Fig. 
  46, 
  p. 
  175. 
  — 
  Rhabdopelix 
  longispinis, 
  Cope, 
  vertebrae, 
  ribs, 
  phalanges, 
  etc., 
  from 
  Triassic 
  rocks 
  of 
  Phcanixville. 
  

   Fig. 
  47, 
  p. 
  186. 
  — 
  Lateral 
  view 
  of 
  splenial 
  bone 
  of 
  Mosasaurus 
  from 
  within, 
  the 
  fragment 
  one-fourth 
  natural 
  size. 
  Ex- 
  

   tremity 
  of 
  same, 
  showing 
  articular 
  face. 
  From 
  Clarksboro, 
  N. 
  J. 
  

   Fig. 
  48, 
  p. 
  187. 
  — 
  Proximal 
  extremities 
  of 
  quadrate 
  bones 
  of 
  Mosasauroids 
  — 
  six 
  species, 
  with 
  sections 
  of 
  same 
  just 
  

  

  below 
  auricular 
  meatus. 
  

   Fig. 
  49, 
  p. 
  188. 
  — 
  Internal 
  views 
  of 
  lateral 
  elements 
  of 
  the 
  axis 
  of 
  four 
  species 
  of 
  Mosasauroids. 
  

   Fig. 
  50, 
  p. 
  215. 
  — 
  Section 
  of 
  ramus 
  mandibuli 
  of 
  Glidastes 
  propython, 
  Cope, 
  near 
  the 
  middle 
  of 
  the 
  coronoid 
  bone; 
  

  

  natural 
  size. 
  

   Fig. 
  51, 
  p. 
  216. 
  — 
  Glidastes 
  propython, 
  ramus 
  mandibuli 
  from 
  within, 
  and 
  fig. 
  52 
  from 
  above; 
  about 
  one-third 
  natural 
  

  

  size. 
  

   Fig. 
  53, 
  p. 
  236. 
  — 
  Coracoid 
  bone 
  of 
  Sula 
  loxostyla, 
  Cope, 
  from 
  the 
  Miocene 
  of 
  Calvert 
  Co., 
  Maryland. 
  The 
  proximal 
  

  

  portion 
  was 
  carelessly 
  broken 
  away 
  by 
  the 
  artist 
  and 
  lost, 
  so 
  that 
  the 
  cut 
  represents 
  a 
  more 
  incomplete 
  specimen 
  

  

  than 
  the 
  description. 
  

   Fig. 
  54, 
  p. 
  241.— 
  Tracks 
  in 
  the 
  subcarboniferous 
  slate 
  near 
  Pottsville, 
  Pa., 
  discovered 
  by 
  Wm, 
  M. 
  Gabb; 
  natural 
  size. 
  

   Fig. 
  55, 
  p. 
  250. 
  — 
  Section 
  of 
  the 
  ? 
  Miocene 
  clay 
  with 
  gravel 
  and 
  sand 
  superimposed, 
  at 
  Pea 
  Shore, 
  New 
  Jersey. 
  

  

  