﻿m:\v 
  fORK 
  BTATH 
  MUSI 
  

  

  Eopolychaetus 
  albaniensis 
  gen. 
  e1 
  Bpec. 
  n<»\ 
  

  

  rig. 
  

  

  L3 
  a 
  Bpecimen 
  from 
  the 
  Kara] 
  cemetery, 
  Albany 
  X. 
  Y. 
  

  

  Pontobdellopsis 
  cometa 
  gen. 
  el 
  spec. 
  nov. 
  

   14-1^ 
  Specimens 
  from 
  the 
  Bora] 
  cemetery, 
  Albany 
  X. 
  Y. 
  x3 
  

  

  Technophorus 
  cancellatus 
  sp. 
  n. 
  

  

  All 
  specimens 
  from 
  the 
  upper 
  Uttea 
  shale 
  of 
  Green 
  Island. 
  Albany 
  co. 
  

   N. 
  v. 
  All 
  enlarged. 
  x3. 
  

  

  19 
  Small 
  Bhort 
  Bpecimen, 
  showing 
  basal 
  margin 
  

  

  20 
  Surface 
  sculpture 
  of 
  the 
  same. 
  xG 
  

  

  21 
  Sperimen 
  with 
  perfect 
  posterior 
  part 
  

  

  22 
  Partial 
  cast, 
  showing 
  the 
  impressions 
  on 
  both 
  sides 
  of 
  the 
  

  

  beak 
  

   Valve 
  with 
  nearly 
  equally 
  strong 
  concentric 
  and 
  vertical 
  

   lines 
  

  

  24 
  Largest 
  specimen 
  observed 
  with 
  somewhat 
  different 
  outline 
  

   and 
  stronger 
  vertical 
  lines 
  

   Surface 
  sculpture 
  of 
  the 
  same. 
  x6 
  

  

  Plate 
  2 
  

   Ctenobolbina 
  subrotunda 
  sp. 
  n. 
  

   1 
  Bight 
  valve. 
  xl7 
  

   - 
  Ventral 
  view 
  of 
  the 
  same. 
  xl7 
  

  

  3 
  Another 
  valve. 
  xl7 
  

  

  4 
  Ventral 
  view 
  of 
  the 
  same. 
  xl7 
  

  

  Originals 
  of 
  figures 
  1-4 
  are 
  from 
  middle 
  Trenton 
  shale 
  of 
  Tort 
  

   Schuyler, 
  Albany 
  co. 
  X. 
  Y. 
  

  

  Ctenobolbina 
  ciliata 
  Emmons 
  sp.. 
  var. 
  cornuta 
  var. 
  nov. 
  

  

  5 
  Small 
  left 
  carapace. 
  \17 
  

  

  6 
  Ctenobolbina 
  ciliata. 
  Larger 
  riirh 
  t 
  valve. 
  xl7 
  

   Prom 
  lower 
  Utica 
  shale 
  ;it 
  tfechanicsville, 
  Saratoga 
  co. 
  N. 
  Y. 
  

  

  7 
  Ctenobolbina 
  ciliata. 
  Right 
  valve 
  

  

  •in 
  ill'- 
  upper 
  i'iica 
  shale 
  of 
  Green 
  Island. 
  Albany 
  co. 
  N. 
  Y. 
  

   a 
  17 
  

  

  