﻿334 
  HE. 
  E. 
  B. 
  NEWTON 
  ON 
  

  

  8. 
  Alectetonia 
  Deshayesi 
  (?), 
  Fischer, 
  1835. 
  

  

  Upper 
  Cretaceous 
  (Santonien) 
  (France, 
  Eussia, 
  Algeria, 
  India). 
  

   2 
  or 
  3 
  miles 
  north 
  of 
  Ambohitrombikely. 
  

  

  9. 
  Geyph^a 
  vesictjlaeis, 
  Lamarck 
  (sp.), 
  1806 
  and 
  1809. 
  

  

  Upper 
  Cretaceous 
  (Campanien) 
  (England, 
  France, 
  Russia, 
  Spain, 
  

   Asia, 
  and 
  America). 
  2 
  or 
  3 
  miles 
  north 
  of 
  Ambohitrombikely. 
  

  

  10. 
  Exogyea 
  eatisbonensis, 
  Schlotheim 
  (sp.), 
  1813. 
  

  

  (= 
  Gryjpihasa 
  columba, 
  Lamarck, 
  1819.) 
  

  

  Middle 
  Cretaceous 
  (Carentonien) 
  (England, 
  France, 
  Germany, 
  

   Russia, 
  Spain, 
  Asia). 
  2 
  or 
  3 
  miles 
  north 
  of 
  Ambohitrombikely. 
  

  

  JURASSIC. 
  

  

  Cephalopoda. 
  

  

  1. 
  Belemnites 
  Sauvanattstts, 
  d'Orbigny, 
  1842. 
  

   Oxfordian 
  (France). 
  ]S 
  orth 
  of 
  Andranosamonta. 
  

  

  2. 
  Peeisphtnctes 
  (Ammonites) 
  polygyeatus, 
  Reinecke 
  (sp.), 
  1818. 
  

   Oxfordian 
  (England 
  ; 
  Germany). 
  North 
  of 
  Andranosamonta. 
  

  

  3. 
  Stephanoceeas 
  (Ammonites) 
  maceocephaltjm, 
  Schlotheim 
  (sp.), 
  

  

  1813. 
  

  

  Oxfordian 
  (England 
  ; 
  Germany 
  ; 
  France). 
  North 
  of 
  Andranosa- 
  

   monta. 
  

  

  4. 
  Stephanoceeas 
  (Ammonites) 
  Heeveyi, 
  J. 
  Sowerby 
  (sp.), 
  1818. 
  

  

  (PI. 
  XIV. 
  figs. 
  1, 
  2.) 
  

  

  This 
  specimen 
  agrees 
  in 
  all 
  its 
  characters 
  with 
  Sowerby's 
  type. 
  

   The 
  inner 
  volutions 
  are 
  distinct, 
  though 
  somewhat 
  concealed 
  within 
  

   a 
  deep 
  umbilicus 
  ; 
  the 
  primary 
  ribs 
  bifurcate 
  and 
  pass 
  over 
  the 
  back, 
  

   where 
  they 
  meet 
  the 
  corresponding 
  primaries 
  on 
  the 
  other 
  side, 
  with 
  

   a 
  free 
  rib 
  occasionally 
  intervening. 
  Height 
  37 
  millim. 
  j 
  width 
  33 
  

   millim. 
  ; 
  diameter 
  of 
  umbilicus 
  11 
  millim. 
  It 
  may 
  be 
  remarked 
  

   that 
  this 
  specimen 
  bears 
  a 
  strong 
  resemblance 
  to 
  Ammonites 
  Bainii, 
  

   Sharpe, 
  from 
  the 
  secondary 
  rocks 
  of 
  South 
  Africa. 
  (Trans. 
  Geol. 
  

   Soc. 
  1856, 
  vol. 
  vii. 
  pi. 
  xxiiil 
  fig. 
  2, 
  p. 
  197.) 
  

  

  Lower 
  Oolite 
  (England 
  ; 
  France 
  ; 
  Germany). 
  S.W. 
  Madagascar. 
  

   Collected 
  by 
  the 
  Rev. 
  J. 
  Richardson. 
  

  

  5. 
  Stephanoceeas 
  (Ammonites) 
  calloviense, 
  J. 
  Sowerby 
  (sp.), 
  

  

  1815. 
  

  

  Callovian 
  (Britain 
  ; 
  N. 
  of 
  France 
  ; 
  &c). 
  5 
  or 
  6 
  miles 
  south 
  of 
  

   Ankaramy. 
  

  

  