﻿HUDSON 
  RIVER 
  BEDS 
  NEAR 
  ALBANY 
  587 
  

  

  Ctenobolbina 
  ciliata 
  Emmons 
  sp. 
  

  

  8 
  Internal 
  cast, 
  xll 
  

  

  Upper 
  Utica 
  shale, 
  Menands, 
  Albany 
  co. 
  N. 
  Y. 
  

  

  9 
  Gutta 
  percha 
  impression 
  of 
  the 
  same 
  

  

  Lepidocoleus 
  jamesi 
  Hall 
  and 
  Whitfield 
  sp. 
  xlO 
  

  

  10 
  Trenton 
  beds 
  of 
  Trenton 
  Falls 
  N. 
  Y. 
  

  

  11 
  Middle 
  Trenton 
  beds 
  at 
  Port 
  Schuyler, 
  Albany 
  co. 
  N. 
  Y. 
  

  

  12 
  Lower 
  Utica 
  beds, 
  Mechanicsville, 
  Saratoga 
  co. 
  N. 
  Y. 
  

  

  Turrilepas 
  (?) 
  filosus 
  sp. 
  n. 
  

  

  13 
  Smaller 
  plate. 
  x3 
  

  

  14 
  Enlargement 
  of 
  part 
  of 
  the 
  same. 
  x9 
  

  

  15 
  Larger 
  plate. 
  x3 
  

  

  Lower 
  Utica 
  shale 
  of 
  Mechanicsville, 
  Saratoga 
  co. 
  N. 
  Y. 
  

  

  Pollicipes 
  siluricus 
  sp. 
  n. 
  

  

  All 
  figures 
  enlarged 
  three 
  times. 
  

  

  16 
  Left 
  tergum 
  

  

  Upper 
  Utica 
  shale 
  of 
  Green 
  Island, 
  Albany 
  co. 
  N. 
  Y. 
  

  

  17 
  A 
  smaller 
  and 
  shorter 
  tergum 
  from 
  the 
  lower 
  Utica 
  shale 
  of 
  

  

  Mechanicsville, 
  Saratoga 
  co. 
  N. 
  Y. 
  

  

  18 
  Carina 
  

  

  19 
  Lateral 
  view 
  of 
  larger 
  carina. 
  This 
  valve 
  has 
  a 
  prominent 
  

  

  lateral 
  ridge 
  and 
  narrow 
  marginal 
  border 
  

  

  20 
  Fragment 
  of 
  a 
  carina 
  with 
  broad 
  and 
  low 
  lateral 
  ridge 
  and 
  

  

  broad 
  marginal 
  border 
  

  

  21 
  Farther 
  enlargement 
  of 
  surface 
  of 
  original 
  of 
  fig. 
  18. 
  x8 
  

  

  22 
  Ko 
  strum 
  

  

  23 
  Lateral 
  view 
  of 
  the 
  same. 
  

  

  Originals 
  of 
  figures 
  18-23 
  are 
  from 
  the 
  upper 
  Utica 
  shale 
  of 
  

   Green 
  Island, 
  Albany 
  co. 
  N. 
  Y. 
  

  

  24 
  Upper 
  latus, 
  from 
  a 
  gutta 
  percha 
  impression. 
  Lower 
  Utica 
  

  

  shale 
  of 
  Mechanicsville, 
  Saratoga 
  co. 
  N. 
  Y. 
  

  

  