﻿Oniithosauruin 
  Genus 
  Oniitlioclieirus. 
  535 
  

  

  Examples 
  : 
  — 
  

  

  O. 
  brachyrhinus 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  ' 
  Oriiitbosauiia,' 
  1870, 
  p. 
  123. 
  

   r>. 
  ceaue/7' 
  (Bowerljaiik). 
  Fig. 
  J. 
  S. 
  Boweibank, 
  Proc. 
  Zool. 
  Soo. 
  1851, 
  

  

  p. 
  15, 
  pi. 
  iv. 
  (lettered 
  lonyirostris) 
  ; 
  aud 
  K. 
  Owen, 
  Hep. 
  Cret. 
  

  

  Form. 
  (1851) 
  tab. 
  xxviii. 
  tigs. 
  1-4. 
  

   O. 
  colorhititts 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  ' 
  Ornitbosauria,' 
  1870, 
  p. 
  124. 
  

   O. 
  dentatiis 
  (Seeley). 
  H, 
  G. 
  Seeley, 
  ' 
  Oruithosauria,' 
  1870, 
  p. 
  119. 
  

   O. 
  denticulatHs 
  (Seeley). 
  II, 
  G. 
  Seeley, 
  * 
  Ornitbosauria,' 
  1870, 
  p. 
  122, 
  

  

  pi. 
  xii. 
  figs. 
  8, 
  9. 
  

   O. 
  enchofhynchus 
  (Seeley). 
  II. 
  G}. 
  Seeley, 
  ' 
  Ornitbosauria,' 
  1870, 
  p. 
  123. 
  

   O.jittoni 
  (Owen). 
  R. 
  Owen, 
  Rep. 
  Cret. 
  Form. 
  (1859), 
  Suppl. 
  i. 
  pi. 
  i. 
  

  

  figs. 
  3-5, 
  and 
  el>ewbere. 
  

   O. 
  nasutus 
  (Seeley). 
  II. 
  G. 
  Seeley, 
  ' 
  Ornitbosaiu'ia,' 
  1870, 
  p. 
  120. 
  

   O. 
  o.vyrhinus 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  * 
  Ornitbosauria,' 
  1870, 
  p. 
  117. 
  

   O. 
  polyodon 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  'Ornitbosauria,' 
  1870, 
  p. 
  121. 
  

   O. 
  sedywickl 
  (Owen). 
  R. 
  Owen, 
  Rep. 
  Cret. 
  Form. 
  (1859), 
  Suppl. 
  i. 
  

  

  pi. 
  i. 
  figs. 
  1, 
  2, 
  and 
  elsewbere. 
  

  

  These 
  are 
  the 
  only 
  specimens 
  that 
  truly 
  come 
  under 
  

   Speley^s 
  amended 
  definition 
  of 
  the 
  genus 
  Ornithodieirus^ 
  

   viz. 
  :— 
  

  

  I. 
  Teeth 
  prolonged 
  anterior 
  to 
  muzzle, 
  

   II. 
  Longitudinal 
  ridge 
  on 
  palate. 
  

  

  To 
  this 
  gro\ip, 
  therefore, 
  should 
  be 
  assigned 
  the 
  generic 
  

   name 
  Oi'iiithocheiriis. 
  

  

  Group 
  No. 
  3. 
  

  

  Beaks 
  lanceolate 
  and 
  pointed, 
  compressed 
  laterally 
  and 
  

   vertically 
  near 
  the 
  tip. 
  Little 
  or 
  no 
  upward 
  curving 
  of 
  the 
  

   palate. 
  Teeth 
  considerably 
  smaller 
  than 
  in 
  Ornit/iocheirus, 
  

   uniform 
  in 
  size, 
  and 
  more 
  or 
  less 
  laterally 
  compressed. 
  

   Moderate 
  rising 
  of 
  alveolar 
  rim. 
  Longitudinal 
  ridge 
  on 
  

   palate. 
  

  

  Examples 
  : 
  — 
  

  

  O. 
  compressirosfris 
  (Owen). 
  R. 
  Owen, 
  Rep. 
  Cret. 
  Form. 
  (1851) 
  pi. 
  xxvii. 
  

  

  fig. 
  5, 
  and 
  pi. 
  xxviii. 
  figs. 
  8, 
  9, 
  10. 
  

   O. 
  macha-orhynchus 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  'Ornitbosauria,' 
  1870, 
  

  

  pi. 
  xii. 
  figs. 
  1 
  & 
  2. 
  

   O. 
  microdon 
  (Seeley). 
  II. 
  G. 
  Seeley, 
  ' 
  Ornitbosauria,' 
  1870, 
  pi. 
  xii. 
  

  

  figs. 
  6, 
  7. 
  

   O. 
  oioeni 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  ' 
  Ornitbosauria,' 
  1870, 
  p. 
  115. 
  

   O. 
  scaphorhynchus 
  (Seeley). 
  H. 
  G. 
  Seeley, 
  ' 
  Ornitbosauria,' 
  1870, 
  p. 
  119, 
  

   O. 
  tenuirostris 
  (Seeley). 
  II. 
  G. 
  Seeley, 
  'Ornitbosauria,' 
  1870, 
  p. 
  114. 
  

  

  We 
  suggest 
  that 
  this 
  genus 
  be 
  called 
  Lonchodectes. 
  

  

  