﻿100 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  of 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  var. 
  posterus 
  Hall 
  & 
  Clarke, 
  

   and 
  numerous 
  specimens 
  of 
  Productella 
  lachrymosa 
  (Con.) 
  Hall. 
  

   A 
  little 
  above 
  in 
  a 
  thin 
  sandstone 
  are 
  a 
  considerable 
  number 
  of 
  

   specimens 
  of 
  a 
  large 
  Schizodus, 
  referred 
  to 
  S. 
  chemungensis 
  (Con.) 
  

   Hall 
  var. 
  quadrangularis 
  Hall. 
  In 
  the 
  bed 
  of 
  the 
  creek 
  is 
  a 
  some- 
  

   what 
  concretionary 
  contorted 
  stratum 
  below 
  the 
  calcareous 
  one 
  

   which 
  is 
  thicker 
  than 
  the 
  majority 
  of 
  such 
  strata 
  in 
  the 
  Hamil- 
  

   ton 
  and 
  Chemung 
  series 
  of 
  eastern 
  New 
  York. 
  This 
  is 
  a 
  good 
  

   locality 
  for 
  collecting 
  in 
  the 
  lower 
  Chemung 
  as 
  the 
  following 
  list 
  

   will 
  show: 
  

  

  1 
  Spirifer 
  miicronatus 
  (Con.) 
  Bill. 
  (aa) 
  

  

  var. 
  posterus 
  H. 
  & 
  C. 
  

  

  2 
  S. 
  mesastrilis 
  Hall 
  - 
  (rr) 
  

  

  3 
  Productella 
  lachrymosa 
  (Con.) 
  Hall 
  (a) 
  

  

  4 
  Schizophoria 
  impressa 
  (Hall) 
  H. 
  & 
  C. 
  (rr) 
  

  

  5 
  Liorhynchus 
  globuliformis 
  (Van.) 
  Hall 
  (r) 
  

  

  6 
  Camarotoechia 
  contractu 
  (Hall) 
  H. 
  & 
  C. 
  (aa) 
  

  

  7 
  Schizodus 
  chemungensis 
  (Con.) 
  Hall 
  (c) 
  

  

  var. 
  quadrangularis 
  Hall 
  

  

  These 
  are 
  rather 
  large 
  specimens 
  43 
  mm 
  long 
  and 
  35 
  mm 
  

   high 
  hut 
  this 
  is 
  the 
  only 
  species 
  similar 
  in 
  outline. 
  

  

  8 
  Palaeoneilo 
  brevis 
  Hall 
  (a) 
  

  

  var. 
  quadrangularis 
  Hall 
  

   Abundant 
  on 
  one 
  slab. 
  

  

  9 
  P. 
  filosa 
  (Con.) 
  Hall 
  var. 
  (rr) 
  

  

  The 
  concentric 
  striae 
  are 
  fine 
  all 
  over 
  this 
  species 
  until 
  the 
  

   posterior 
  slope 
  is 
  reached 
  when 
  they 
  suddenly 
  become 
  

   sharp 
  and 
  angular. 
  

  

  10 
  Splienotus 
  sp. 
  (r) 
  

  

  Small 
  and 
  poorly 
  preserved. 
  

  

  11 
  Grammysia 
  cf. 
  undata 
  Hall 
  (r) 
  

  

  Broken 
  specimens. 
  

  

  12 
  Ectenodesma 
  birostratum 
  Hall 
  (rr) 
  

  

  13 
  Lyriopecten 
  cf. 
  priamus 
  Hall 
  ( 
  r 
  ) 
  

  

  The 
  ribs 
  of 
  the 
  large 
  specimen 
  have 
  finer 
  striae 
  on 
  them 
  and 
  

   a 
  smaller 
  rib 
  alternating 
  with 
  the 
  larger 
  ones. 
  

  

  14 
  Bellerophon 
  maera 
  Hall 
  (?) 
  ( 
  rr 
  ) 
  

  

  