﻿INTERMEDIATE 
  BETWEEN 
  BIRDS 
  AND 
  REPTILES. 
  13 
  

  

  firmly 
  united, 
  and 
  that 
  a 
  sufficient 
  base 
  for 
  the 
  support 
  of 
  the 
  body 
  

   was 
  thus 
  afforded 
  by 
  the 
  spreading 
  out 
  of 
  the 
  phalangeal 
  regions 
  of 
  

   the 
  toes." 
  (Huxley, 
  loc. 
  cit.) 
  

  

  Mantell 
  long 
  since, 
  and 
  more 
  recently 
  Leidy, 
  have 
  concluded, 
  from 
  

   the 
  great 
  difference 
  in 
  the 
  size 
  between 
  the 
  fore 
  and 
  hind 
  limbs, 
  

   that 
  Iguanodon 
  and 
  Hadrosaurus, 
  as 
  well 
  as 
  other 
  Dinosauria, 
  may 
  

   have 
  supported 
  themselves 
  for 
  a 
  time 
  at 
  least 
  upon 
  their 
  hind 
  legs. 
  

   But 
  Mr. 
  Beckle's 
  discovery 
  of 
  pairs 
  of 
  large 
  three-toed 
  foot-prints, 
  

   of 
  such 
  a 
  size 
  and 
  at 
  such 
  a 
  distance 
  apart 
  that 
  it 
  is 
  difficult 
  to 
  

   believe 
  they 
  have 
  been 
  made 
  by 
  any 
  thing 
  but 
  Iguanodon, 
  leads 
  to 
  

   the 
  supposition 
  that 
  this 
  vast 
  reptile, 
  and 
  perhaps 
  others 
  of 
  its 
  

   family, 
  must 
  have 
  walked 
  temporarily 
  or 
  permanently 
  upon 
  its 
  hind 
  

   , 
  Joe. 
  cit. 
  p. 
  364). 
  

  

  Many 
  years 
  since, 
  Mr. 
  Allan 
  Cunningham 
  (H. 
  M. 
  Botanical 
  Col- 
  

   lector 
  for 
  Kew), 
  who 
  accompanied 
  the 
  Expedition 
  to 
  survey 
  the 
  

   Intertropical 
  and 
  Western 
  Coasts 
  of 
  Australia, 
  from 
  3818 
  to 
  1822, 
  

   under 
  Captain 
  Philip 
  King, 
  R.jN"., 
  F.R.S., 
  secured 
  a 
  specimen 
  of 
  a 
  

   remarkable 
  Frilled 
  Lizard, 
  which 
  had 
  perched 
  itself 
  upon 
  the 
  stem 
  

   of 
  a 
  small 
  decayed 
  tree, 
  at 
  Careening 
  Bay, 
  Port 
  Xelson*. 
  This 
  has 
  

   been 
  named 
  Chlamydosaurus 
  Kingii, 
  by 
  Dr. 
  Gray. 
  The 
  stuffed 
  

   specimen 
  is 
  preserved 
  in 
  the 
  British-Museum 
  collection 
  in 
  a 
  semi- 
  

   erect 
  position, 
  its 
  fore 
  feet 
  (which 
  are 
  very 
  much 
  smaller 
  than 
  

   the 
  hind 
  feet) 
  scarcely 
  touching 
  the 
  ground 
  at 
  the 
  extremities 
  of 
  

   the 
  claws. 
  I 
  had 
  the 
  advantage 
  (in 
  company 
  with 
  my 
  esteemed 
  

   colleague, 
  Dr. 
  Gunther, 
  the 
  Assistant 
  Keeper 
  of 
  the 
  zoological 
  

   collections 
  of 
  the 
  British 
  Museum) 
  to 
  hear 
  the 
  remarks 
  of 
  an 
  

   Australian 
  resident 
  on 
  this 
  lizard, 
  which 
  is 
  common 
  about 
  the 
  

   gardens 
  in 
  the 
  environs 
  of 
  Sydney. 
  This 
  observer 
  reports 
  that 
  the 
  

   lizard 
  in 
  question 
  not 
  merely 
  sits 
  up 
  occasionally, 
  but 
  habitually 
  

   runs 
  upon 
  the 
  ground 
  on 
  its 
  hind 
  legs, 
  its 
  fore 
  paws 
  not 
  touching 
  

   the 
  earth. 
  This 
  statement 
  interested 
  me 
  immensely 
  ; 
  and 
  on 
  re- 
  

   peating 
  it 
  to 
  Prof. 
  Huxley, 
  I 
  learnt 
  that 
  that 
  acute 
  observer, 
  

   Mr. 
  Gerard 
  Krefft, 
  of 
  the 
  Sydney 
  Museum, 
  had 
  noted 
  the 
  same 
  

   peculiarity. 
  With 
  this 
  upright 
  carriage, 
  special 
  modifications 
  of 
  

   the 
  sacrum 
  and 
  pelvic 
  bones 
  are 
  necessary 
  ; 
  and, 
  no 
  doubt, 
  when 
  a 
  

   specimen 
  is 
  dissected, 
  this 
  very 
  interesting 
  point 
  will 
  be 
  corrobo- 
  

   rated 
  by 
  the 
  form 
  and 
  articulation 
  of 
  the 
  bones. 
  As 
  geologists, 
  we 
  

   cannot 
  but 
  be 
  interested 
  in 
  this 
  peculiarly 
  modified 
  existing 
  type 
  

   of 
  lizard, 
  occurring, 
  as 
  it 
  does, 
  on 
  the 
  continent 
  of 
  Australia 
  (which 
  

   has 
  yielded 
  such 
  a 
  remarkable 
  assemblage 
  of 
  Tertiary 
  and 
  existing 
  

   Marsupialia 
  to 
  be 
  critically 
  examined 
  and 
  chronicled 
  by 
  our 
  great 
  

   anatomist, 
  Professor 
  Owen) 
  — 
  -a 
  land 
  also 
  remarkable 
  for 
  the 
  pos- 
  

   session 
  of 
  many 
  living 
  Mollusca 
  of 
  Mesozoic 
  types 
  on 
  its 
  coasts. 
  

  

  It 
  is 
  noteworthy 
  in 
  connexion 
  with 
  these 
  observations 
  on 
  bipedal 
  

   reptilia 
  (existing 
  and 
  extinct), 
  to 
  find 
  that 
  the 
  Solenhofen 
  Lime- 
  

   stone, 
  which 
  has 
  yielded 
  both 
  the 
  long- 
  and 
  short-tailed 
  Pterosauria, 
  

   the 
  long-tailed 
  Reptilian-likebirdf 
  , 
  and 
  the 
  long-necked 
  short-armed 
  

   Avian 
  lizard 
  J 
  supplies 
  a 
  bipedal 
  track 
  upon 
  one 
  of 
  its 
  slabs, 
  which 
  

  

  * 
  See 
  King's 
  'Survey 
  of 
  Australia,' 
  8vo, 
  1827, 
  vol. 
  ii., 
  Appendix, 
  p. 
  424. 
  

   t 
  Archaopteryx* 
  \ 
  Compaognathus. 
  

  

  