﻿l82 
  

  

  PROCEEDINGS 
  OE 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  

  

  Table 
  XXX. 
  — 
  Showing 
  the 
  Genera 
  of 
  LamellibrancJis 
  largely 
  repre- 
  

   sented 
  by 
  Species 
  in 
  the 
  Lower 
  Jurassic 
  JRoclcs 
  ujp 
  to 
  the 
  

   Cornbrasli. 
  

  

  Chief 
  genera. 
  

  

  s 
  

  

  

  © 
  

  

  

  

  

  

  

  O 
  

  

  A 
  

  

  © 
  

  

  O 
  

  

  03 
  

  

  03 
  

   *4 
  

  

  

  ,3 
  

  

  OS 
  

  

  05 
  

  

  © 
  

  

  S3 
  

  

  P- 
  

  

  

  o 
  

  

  A 
  

  

  O 
  ! 
  Q 
  

  

  ^ 
  

  

  6 
  6 
  

  

  40 
  

  

  111 
  5 
  

  

  36 
  

  

  1 
  

  

  

  12 
  

  

  3 
  

  

  3 
  

  

  20 
  

  

  11 
  

  

  8 
  

  

  83 
  

  

  10 
  

  

  8 
  

  

  51 
  

  

  17 
  

  

  16 
  

  

  101 
  

  

  3 
  

  

  2 
  

  

  12 
  

  

  2 
  

  

  1 
  

  

  20 
  

  

  2 
  

  

  

  20 
  

  

  66 
  

  

  49 
  

  

  395 
  

  

  10 
  

  

  1 
  

  

  35 
  

  

  21 
  

  

  7 
  

  

  73 
  

   33 
  

  

  10 
  

  

  7 
  

  

  31 
  

  

  6 
  

  

  

  22 
  

  

  4 
  

  

  i 
  

  

  9 
  

  

  4 
  

  

  2 
  

  

  37 
  

  

  4 
  

  

  2 
  

  

  26 
  

  

  7 
  

  

  2 
  

  

  15 
  

  

  5 
  

  

  2 
  

  

  21 
  

  

  3 
  

  

  1 
  

  

  21 
  

  

  2 
  

  

  5 
  

  

  33 
  

  

  6 
  

  

  5 
  

  

  19 
  

  

  14 
  

  

  6 
  

  

  65 
  

  

  7 
  

  

  8 
  

  

  39 
  

  

  3 
  

  

  

  14 
  

  

  2 
  

  

  2 
  

  

  22 
  

  

  2 
  

  

  1 
  

  

  17 
  

  

  5 
  

  

  2 
  

  

  20 
  

  

  13 
  

  

  10 
  

  

  60 
  

   21 
  

  

  9 
  

  

  

  31 
  

  

  13 
  

  

  13 
  

  

  66 
  

  

  3 
  

  

  1 
  

  

  15 
  

  

  153 
  

  

  78 
  

  

  745 
  

  

  s 
  

  

  Avieula 
  .. 
  

   Gervillia 
  

   Gryplisea 
  

   Hinnites 
  

  

  Lima 
  

  

  Ostrea 
  . 
  . 
  

   Pecten 
  .. 
  

   Perna 
  . 
  . 
  

   Pinna 
  .. 
  

   Plicatula 
  

  

  _7i 
  

  

  p 
  

  

  Area 
  45 
  

  

  Astarte 
  77 
  

  

  Cardinia 
  29 
  

  

  Cardinal 
  35 
  

  

  Cercomya 
  18 
  

  

  Corbula 
  15 
  

  

  Cucullsea 
  37 
  

  

  Cyprieardia 
  26 
  

  

  Cyprina 
  19 
  

  

  Goniomya 
  15 
  

  

  Gresslva 
  19 
  

  

  Leda 
  31 
  

  

  Lucina 
  24 
  

  

  Mocliola 
  44 
  

  

  Myacites 
  33 
  

  

  Myoconcha 
  14 
  

  

  Mytilus 
  25 
  

  

  Nucula 
  19 
  

  

  Opis 
  20 
  

  

  Pholadoinya 
  49 
  

  

  Plenromya 
  23 
  

  

  Tancredia 
  | 
  26 
  

  

  Trigonia 
  

  

  Unicai'dium 
  12 
  

  

  380 
  100 
  

  

  743 
  

  

  3 
  

  

  5 
  

  

  10 
  

  

  1 
  

  

  8 
  

   2 
  

  

  4 
  

  

  4 
  

   2 
  

  

  6 
  

   8 
  

   4 
  

   1 
  

   3 
  

  

  115 
  91 
  66 
  

  

  26 
  

  

  3 
  

  

  9 
  

  

  "•2 
  

   1 
  

  

  "3 
  

  

  3 
  

  

  3 
  

  

  3 
  

   3 
  

  

  7 
  

   4 
  

   1 
  

   1 
  

   4 
  

   1 
  

   4 
  

   5 
  

   3 
  

  

  90 
  

  

  199 
  

  

  43 
  

  

  These 
  34 
  genera, 
  selected 
  from 
  the 
  94 
  that 
  are 
  known, 
  are 
  enume- 
  

   rated 
  on 
  account 
  of 
  their 
  being 
  largely 
  represented 
  ; 
  the 
  remain- 
  

   ing 
  60 
  genera 
  contain 
  species 
  under 
  14 
  in 
  number, 
  and 
  therefore 
  

   need 
  not 
  be 
  noticed, 
  although 
  zoologically 
  many 
  of 
  them 
  are 
  of 
  high 
  

   importance. 
  Anomia, 
  Crenatula, 
  Inoceramus, 
  Placunopsis, 
  Ptero- 
  

   pema, 
  and 
  Trichites 
  among 
  the 
  Monomyaria, 
  and 
  Carclita, 
  Corbis, 
  

  

  