﻿fossils 
  from 
  madagascar. 
  335 
  

  

  Gasteropoda. 
  

  

  6. 
  Nerita 
  Btjvignieei, 
  Morris 
  and 
  lycett, 
  1850. 
  (PI. 
  XIV. 
  fig. 
  5.) 
  

  

  The 
  only 
  difference 
  between 
  the 
  Malagasy 
  shell 
  and 
  this 
  species, 
  

   to 
  which 
  I 
  have 
  referred 
  it, 
  appears 
  to 
  be 
  an 
  absence 
  of 
  the 
  decus- 
  

   sations 
  or 
  transverse 
  lines 
  between 
  the 
  longitudinal 
  ribs. 
  In 
  all 
  

   other 
  characters 
  it 
  agrees 
  perfectly 
  well. 
  

  

  Lower 
  Oolite 
  (Britain 
  ; 
  France). 
  Near 
  Ankoala. 
  

  

  7. 
  Nerin^a 
  (allied 
  to) 
  Eudesii, 
  Morris 
  and 
  Lycett, 
  1850. 
  

  

  Lower 
  Oolite 
  (Britain 
  ; 
  France). 
  S.W. 
  Madagascar. 
  Collected 
  

   by 
  the 
  Bev. 
  J. 
  Bichardson. 
  

  

  8. 
  Nerhstjsa 
  (allied 
  to) 
  Voltzii, 
  Deslongchamps, 
  1842. 
  

   Lower 
  Oolite 
  (Britain 
  ; 
  France). 
  Near 
  Ankoala. 
  

  

  9. 
  Natica 
  (allied 
  to) 
  intermedia, 
  Morris 
  and 
  Lycett, 
  1850. 
  

   Lower 
  Oolite 
  (Britain 
  ; 
  France). 
  Iraony. 
  

  

  10. 
  Natica 
  (allied 
  to) 
  Verneuili, 
  d'Archiac, 
  1843. 
  

   Lower 
  Oolite 
  (England 
  ; 
  France). 
  Iraony. 
  

  

  11. 
  Natica 
  (allied 
  to) 
  cincta, 
  Phillips, 
  1829. 
  

   Lower 
  Oolite 
  (England 
  ; 
  France). 
  Iraony. 
  

  

  Pelecypoda. 
  

  

  12. 
  Alectryonia 
  (Ostrea) 
  gregaria, 
  J. 
  Sowerby 
  (sp.), 
  1815, 
  var. 
  

   Lower 
  Oolite 
  (England 
  ; 
  France 
  ; 
  Germany). 
  Near 
  Ankoala. 
  

  

  13. 
  Ostrea 
  Sowerbyi, 
  Morris 
  and 
  Lycett, 
  1853. 
  

   Lower 
  Oolite 
  (England 
  ; 
  France). 
  Near 
  Iraony. 
  

  

  14. 
  Pern 
  a 
  mytiloides, 
  Lamarck, 
  1819. 
  

  

  Lower 
  Oolite 
  (England 
  ; 
  France 
  : 
  Germany). 
  Iraony. 
  

  

  15. 
  Pteroperna 
  costattjla, 
  Deslongchamps 
  (sp.), 
  1824. 
  

   Lower 
  Oolite 
  (England 
  ; 
  France). 
  Iraony. 
  

  

  16. 
  Modiola 
  imbricata, 
  J. 
  Sowerby, 
  1818. 
  

  

  Lower 
  Oolite 
  (England 
  ; 
  Germany). 
  2 
  or 
  3 
  miles 
  north 
  of 
  Ambo- 
  

   hitrombikely. 
  

  

  17. 
  Cipricardia 
  rostrata, 
  J. 
  Sowerby 
  (sp.), 
  1821. 
  

  

  Lower 
  Oolite 
  (England 
  ; 
  Germany). 
  1 
  or 
  2 
  miles 
  south 
  of 
  Ambo- 
  

   hitrombikely. 
  

  

  18. 
  Cypricardia 
  (allied 
  to) 
  bathonica, 
  d'OrbigDy, 
  1850. 
  

  

  Lower 
  Oolite 
  (England 
  ; 
  France). 
  2 
  or 
  3 
  miles 
  north 
  of 
  Ambohit- 
  

   rombikely. 
  

  

  Q.J.G. 
  S. 
  No. 
  178. 
  2 
  b 
  

  

  