﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  199 
  

  

  7 
  Palaeoneilo 
  cf. 
  plana 
  Hall 
  (rr) 
  

  

  8 
  Lingnla 
  sp. 
  (rr) 
  

  

  9 
  Grammy 
  sia 
  cf. 
  elliptica 
  Hall 
  (rr) 
  

  

  Similar 
  to 
  the 
  specimen 
  from 
  Ithaca, 
  N.' 
  Y., 
  as 
  figured 
  on 
  pi. 
  

   58, 
  fig. 
  1. 
  

  

  10 
  cf. 
  Glossites 
  depresses 
  Hall 
  (rr) 
  

  

  11 
  Belleroplion 
  sp. 
  (rr) 
  

  

  Fragment 
  of 
  a 
  very 
  large 
  specimen 
  showing 
  a 
  strong 
  mesial 
  

   band 
  with 
  a 
  deep 
  sinus 
  at 
  the 
  front 
  of 
  the 
  shell. 
  

  

  12 
  Tentaculites 
  spiculus 
  Hall 
  (c) 
  

  

  Another 
  bench 
  of 
  shales 
  occurs 
  310 
  feet 
  above 
  D 
  3 
  and 
  at 
  this 
  

   horizon 
  quite 
  a 
  number 
  of 
  species 
  were 
  collected 
  from 
  the 
  loose 
  

   pieces 
  though 
  it 
  is 
  not 
  certain 
  that 
  all 
  of 
  them 
  came 
  from 
  this 
  

   zone. 
  The 
  list 
  follows: 
  

  

  1 
  Camarotoechia 
  stevensi 
  (Con.) 
  Hall 
  (?) 
  (c) 
  

  

  2 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  (?) 
  (rr) 
  

  

  Poorly 
  preserved. 
  

  

  3 
  S. 
  mesastrialis 
  Hall 
  (r) 
  

  

  Most 
  of 
  the 
  specimens 
  are 
  worn 
  and 
  do 
  not 
  show 
  the 
  fine 
  

   striae, 
  but 
  on 
  the 
  dorsal 
  fold 
  of 
  one 
  they 
  are 
  clearly 
  

   shown. 
  

  

  4 
  S. 
  sp. 
  N 
  (rr) 
  

  

  In 
  form 
  and 
  size 
  of 
  plications 
  like 
  Sp. 
  granulosus 
  (Con.) 
  Hall, 
  

   but 
  too 
  imperfectly 
  preserved 
  to 
  show 
  granules. 
  

  

  5 
  Crinoid 
  stems. 
  (r) 
  

  

  Segments 
  of 
  small 
  ones. 
  

  

  6 
  Dalmanites 
  (Cryplieus) 
  ooothi 
  (Green) 
  Hall 
  (rr) 
  

  

  7 
  Microdon 
  {Cypricar 
  delta) 
  tenuistriatus 
  Hall 
  (rr) 
  

  

  8 
  Nyassa 
  arguta 
  Hall 
  (c) 
  

  

  Same 
  at 
  least 
  as 
  fig. 
  7 
  and 
  8, 
  pi. 
  53, 
  from 
  Pitcher 
  Springs, 
  

   which 
  is 
  in 
  the 
  Ithaca 
  group. 
  

  

  9 
  Sphenotus 
  truncatus 
  (Con.) 
  Hall 
  (c) 
  

  

  These 
  range 
  from 
  10 
  to 
  20 
  mm 
  in 
  length 
  and 
  are 
  apparently 
  

   quite 
  good 
  specimens 
  of 
  this 
  species. 
  

  

  10 
  Goniophora 
  hamiltonensis 
  (Hall) 
  Miller 
  (?) 
  (r) 
  

  

  Not 
  clearly 
  preserved 
  but 
  apparently 
  this 
  species. 
  

  

  11 
  Palaeoneilo 
  constricta 
  (Con.) 
  Hall 
  

  

  var. 
  flexuosa 
  Hall 
  (rr) 
  

  

  