﻿Ill] 
  Special 
  Report 
  No. 
  6 
  : 
  Lignitic 
  Fauna 
  303 
  

  

  Wagner 
  Free 
  Institute 
  of 
  Science. 
  So 
  far 
  as 
  known 
  this 
  species 
  

   is 
  confined 
  to 
  the 
  Upper 
  Lignitic 
  or 
  Woods 
  bluff 
  horizon. 
  

  

  Cardium 
  tuomeyi. 
  Plate 
  53, 
  fig. 
  9, 
  10. 
  

  

  Syn. 
  — 
  C. 
  tuomeyi 
  A\6.., 
  Geol. 
  Surv. 
  Ala., 
  Bull, 
  i, 
  p. 
  40, 
  pi. 
  4, 
  

   figs. 
  13, 
  13a, 
  1886. 
  

  

  See 
  also 
  Bull. 
  Am. 
  Pal., 
  vol. 
  2, 
  p. 
  252. 
  

  

  The 
  specimens 
  we 
  have 
  in 
  hand 
  are 
  of 
  the 
  same 
  species 
  as 
  

   those 
  of 
  the 
  Lower 
  Lignitic 
  of 
  Alabama. 
  They 
  often 
  show, 
  

   however, 
  a 
  somewhat 
  coarser 
  costation 
  than 
  the 
  type 
  specimen 
  

   of 
  tuomeyi 
  does 
  ; 
  but 
  so 
  do 
  many 
  specimens 
  from 
  Nanafalia, 
  the 
  

   type 
  locality. 
  We 
  have 
  come 
  to 
  think 
  the 
  gap 
  between 
  toumeyi 
  

   and 
  hatchetigbeense 
  not 
  so 
  very 
  wide. 
  C. 
  hatchetigbeense 
  is 
  sup- 
  

   posed 
  to 
  have 
  fewer 
  ribs 
  and 
  to 
  have 
  sharp 
  large 
  spines 
  on 
  the 
  

   anterior 
  and 
  posterior 
  slope. 
  Many 
  of 
  these 
  show 
  this 
  feature 
  

   clearly. 
  

  

  Locality. 
  — 
  Pendleton, 
  Texas; 
  Marthaville, 
  La.; 
  La 
  Nana 
  

   bayou, 
  near 
  Many, 
  La. 
  

  

  Horizon. 
  — 
  Lower 
  Lignitic. 
  

  

  Mactra 
  bistriata, 
  Plate 
  53, 
  fig. 
  4. 
  

  

  Syn. 
  — 
  M. 
  prcetenuis 
  var. 
  bistriata 
  Har., 
  Bull. 
  Amer. 
  Pal., 
  vol. 
  2, 
  

   p. 
  258, 
  pi. 
  19, 
  fig. 
  10, 
  1897. 
  

  

  With 
  better 
  specimens 
  in 
  hand 
  it 
  is 
  safe 
  to 
  say 
  that 
  this 
  is 
  

   distinct 
  from 
  M. 
  prce 
  tenuis, 
  Con. 
  

  

  Locality. 
  — 
  Sabinetown, 
  Tex. 
  

  

  Horizo7i. 
  — 
  Upper 
  Lignitic. 
  

  

  Corbula 
  alabamensis, 
  var. 
  

  

  Syn. 
  — 
  See 
  Bull. 
  Amer. 
  Paleont., 
  vol. 
  2, 
  p. 
  260. 
  

  

  Here 
  is 
  the 
  same 
  small 
  varietal 
  section 
  of 
  this 
  species 
  as 
  noted 
  

   in 
  the 
  above-mentioned 
  Bulletin 
  from 
  various 
  Lignitic 
  localities 
  

   in 
  Alabama. 
  It 
  has 
  no 
  strongly 
  marked 
  characteristics 
  by 
  which 
  

   to 
  differentiate 
  it 
  from 
  other 
  members 
  of 
  this 
  section. 
  

  

  Locality. 
  — 
  Sabinetown, 
  Tex. 
  

  

  I/Ucina 
  ozarkana. 
  

  

  Syn. 
  — 
  L. 
  ozarkana 
  Har., 
  Bull. 
  Amer. 
  Pal., 
  vol. 
  2, 
  p. 
  264, 
  1897. 
  

   These 
  fragmentary 
  specimens 
  from 
  Sabinetown 
  seem 
  to 
  

   belong 
  to 
  the 
  same 
  species 
  found 
  in 
  Woods 
  bluff 
  beds 
  at 
  

   Ozark, 
  Ala. 
  

  

  