﻿294 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  Neithea 
  quinquecostata 
  ? 
  Plate 
  49, 
  fig. 
  6, 
  7. 
  

  

  Syn. 
  — 
  Peden 
  quinquecostata 
  (Sowerby) 
  Morton, 
  Am. 
  Jour. 
  Sci., 
  

   vol. 
  18, 
  pi. 
  3, 
  fig. 
  6, 
  1830. 
  Synop. 
  Org. 
  Rem., 
  p. 
  

   57, 
  pi. 
  19, 
  fig. 
  I, 
  1834. 
  

   Neithea 
  quinqtiecostata 
  Whitf., 
  U. 
  S. 
  Geol. 
  Surv,, 
  Mou. 
  9, 
  

   p. 
  56, 
  pi. 
  8, 
  figs. 
  12-14, 
  1885. 
  

   Our 
  specimens 
  are 
  all 
  small 
  and 
  cannot 
  be 
  identified 
  with 
  this 
  

   species 
  beyond 
  doubt. 
  

  

  This 
  is 
  one 
  of 
  those 
  forms 
  showing 
  an 
  almost 
  universal 
  dis- 
  

   tribution. 
  

  

  Locality. 
  — 
  Rayburn's 
  salt 
  works. 
  

  

  Catnptonectes 
  burlingtonensis, 
  Plate 
  50, 
  fig. 
  3. 
  

  

  Syn. 
  — 
  Pecten 
  burlingtonensis 
  Gabb, 
  Acad. 
  Nat. 
  Sci. 
  Phil., 
  Jr., 
  

   vol. 
  4, 
  p. 
  304, 
  pi. 
  48, 
  fig. 
  25, 
  i860. 
  

   Caniptonectes 
  {Amusiuni) 
  burlingto7iensisV\[h\\.{.,\]. 
  S.Geol. 
  

   Surv., 
  Mon. 
  9, 
  p. 
  53, 
  pi. 
  8, 
  figs. 
  3-9, 
  1885. 
  

   The 
  specimen 
  figured 
  is 
  very 
  finely 
  and 
  beautifully 
  marked. 
  

   There 
  are 
  concentric 
  broad 
  undulations 
  about 
  the 
  beak 
  ; 
  over 
  the 
  

   whole 
  surface 
  are 
  concentric 
  lines 
  averaging 
  perhaps 
  one- 
  

   twentieth 
  or 
  thirtieth 
  inch 
  apart 
  ; 
  between 
  these 
  extend 
  radially 
  

   very 
  fine 
  and 
  sharply 
  defined 
  lines, 
  the 
  characteristic 
  markings 
  

   of 
  Campionectes. 
  

  

  Described 
  originally 
  from 
  Burlington 
  County, 
  N. 
  J. 
  

   Locality. 
  — 
  Rayburn's 
  salt 
  works, 
  La. 
  

  

  I/ima 
  pelagica, 
  Plate 
  49, 
  fig. 
  5. 
  

  

  Syn. 
  — 
  Plagiostoma 
  pelagica 
  Morton, 
  Amer. 
  Jr. 
  Sci., 
  vol. 
  23, 
  p. 
  

   293. 
  pl- 
  5. 
  fig- 
  2, 
  1833. 
  

   P. 
  pelagicum 
  Morton, 
  Synop. 
  Org. 
  Rem., 
  p. 
  61, 
  pi. 
  5, 
  fig. 
  

  

  2, 
  1833. 
  

   Radzda 
  pelagica 
  Whitf., 
  U. 
  S. 
  Geol. 
  Surv., 
  Mon. 
  9, 
  p. 
  61, 
  

   pi. 
  9, 
  figs. 
  3-5, 
  1885. 
  

   Described 
  originally 
  from 
  the 
  Lower 
  Greensand 
  marls 
  of 
  New 
  

   Jersey. 
  

  

  Locality. 
  — 
  Rayburn's 
  salt 
  works. 
  

  

  Cardium 
  alabatnense, 
  Plate 
  50, 
  fig. 
  4. 
  

  

  Stanton 
  has 
  so 
  labeled 
  several 
  imperfectly 
  preserved 
  specimens 
  

   in 
  our 
  coMections. 
  

  

  