﻿162 
  TwEXTY 
  -EIGHTH 
  BePORT 
  OX 
  THE 
  STATE 
  MUSEUM. 
  

  

  CCELOSPIRA 
  Hall. 
  

  

  C(ELOSPIEA 
  DISPARILIS. 
  

   Plate 
  25, 
  Figs 
  39-43. 
  

  

  Atrypa 
  disparilis 
  Haul. 
  Pal. 
  !N". 
  Y., 
  vol. 
  ii, 
  p. 
  277, 
  pi. 
  57, 
  figs. 
  6a-6?n. 
  1852. 
  

   Leptocoelia 
  disparilis 
  Haul. 
  10th 
  Rep. 
  St. 
  Cab. 
  Nat. 
  Hist., 
  p. 
  108. 
  1857. 
  

  

  This 
  species 
  is 
  comparatively 
  rare. 
  The 
  specimens 
  from 
  the 
  

   Waldron 
  locality 
  show 
  considerable 
  variation 
  in 
  form, 
  con- 
  

   vexity 
  of 
  the 
  valves, 
  and 
  number 
  of 
  plications. 
  Compared 
  

   with 
  specimens 
  of 
  Metzia 
  Barrandii 
  (Davidson, 
  1848) 
  from 
  

   Dudley, 
  England, 
  they 
  seem 
  to 
  be 
  very 
  closely 
  related, 
  if 
  not 
  

   identical. 
  

  

  ATRYPA 
  Dalman. 
  

   Atrypa 
  reticularis 
  (Linn.). 
  

  

  Plate 
  25, 
  Figs 
  4447. 
  

   For 
  Synoivymy, 
  see 
  Pal. 
  N. 
  Y., 
  vol. 
  iv, 
  p. 
  316. 
  1867- 
  

  

  ■ 
  This 
  is 
  a 
  very 
  abundant 
  species. 
  Many 
  of 
  the 
  specimens 
  

   are 
  more 
  rugose 
  than 
  is 
  usual 
  in 
  other 
  localities. 
  The 
  con- 
  

   centric 
  lamellae 
  are 
  often 
  produced 
  and 
  divided 
  into 
  subtubu- 
  

   lar 
  short 
  spines. 
  

  

  RHYISTCHONELLA 
  Fischer. 
  

   Rhynchonella 
  neglecta. 
  

  

  Plate 
  26, 
  Figs 
  1-6. 
  

  

  Atrypa 
  neglecta 
  Haul,. 
  Pal. 
  N. 
  Y., 
  vol. 
  ii, 
  p. 
  274, 
  pi. 
  57, 
  figs, 
  la-lp. 
  1852. 
  

   Rhynchonella 
  neglecta 
  Haul. 
  12th 
  Rep. 
  St. 
  Cab. 
  Nat. 
  Hist., 
  p. 
  78. 
  1859. 
  

  

  This 
  is 
  a 
  common 
  species 
  at 
  Waldron. 
  It 
  varies 
  somewhat 
  

   from 
  the 
  New 
  York 
  specimens 
  in 
  its 
  decidedly 
  more 
  angular 
  

   form, 
  sharper 
  plications, 
  deeper 
  and 
  more 
  prolonged 
  sinus. 
  

  

  