﻿574 
  SEW 
  TORE 
  I 
  x 
  ' 
  

  

  Bod} 
  loi 
  ader, 
  of 
  approximately 
  equal 
  width; 
  distinctly 
  

  

  gments 
  aboul 
  half 
  as 
  long 
  as 
  wide, 
  apparently 
  con- 
  

   , 
  h 
  provided 
  with 
  five 
  to 
  eight 
  annulations 
  and 
  long 
  setae 
  

   on 
  obm 
  dorsal 
  t 
  which 
  apparently 
  werenol 
  tnfted. 
  

  

  u.i 
  end 
  not 
  well 
  observed, 
  apparently 
  rounded. 
  

   Imiim 
  -usii 
  us. 
  I 
  Imen: 
  length 
  L3 
  mm, 
  or 
  more, 
  (speci- 
  

  

  mens 
  t>f 
  much 
  greater 
  length 
  observed), 
  width 
  1.2 
  mm; 
  length 
  of 
  

   in-in 
  .7 
  nun. 
  length 
  of 
  setae 
  1. 
  1 
  nun. 
  

   While, 
  wiili 
  ilit* 
  material 
  al 
  hand, 
  the 
  exact 
  systematic 
  position 
  

   bis 
  worm 
  could 
  not 
  be 
  established 
  with 
  certainty, 
  ii 
  seems 
  

   clear 
  that 
  this 
  type 
  belongs 
  to 
  the 
  class 
  Polyenaeti. 
  To 
  expi 
  

   this 
  taxonomic 
  date 
  the 
  generic 
  term, 
  E 
  o 
  p 
  o 
  1 
  y 
  <• 
  h 
  aet 
  us, 
  is 
  

   proposed 
  for 
  worms 
  with 
  similar, 
  slender, 
  cylindiric, 
  regularly 
  

   annulated 
  bodies 
  and 
  long 
  non-tufted 
  setae 
  on 
  one 
  side. 
  The 
  

   presence 
  of 
  another 
  worm 
  with 
  setae 
  was 
  made 
  known 
  l»\ 
  K. 
  0. 
  

   Ulrich, 
  who 
  found 
  tufts 
  of 
  long 
  sitae 
  in 
  the 
  Cincinnati 
  group 
  

   (Jour. 
  ("in. 
  80C. 
  nut. 
  hist. 
  1878. 
  1:91). 
  

  

  1* 
  o 
  n 
  t 
  o 
  1» 
  dell 
  o 
  p 
  s 
  i 
  s 
  c 
  o 
  tn 
  eta. 
  gen. 
  et 
  spec. 
  liov. 
  (see 
  pi. 
  1, 
  

   fig. 
  14-18) 
  

  

  Body 
  cylindric 
  or 
  rather 
  long 
  conical, 
  regularly 
  tapering 
  and 
  

   abruptly 
  terminating 
  (with 
  ring-like 
  section) 
  at 
  wider 
  end. 
  

   Other 
  (anterior?) 
  end 
  provided 
  with 
  chitinous 
  disk, 
  the 
  latter 
  

   somel 
  imes 
  \\ 
  it 
  h 
  central 
  depression. 
  

  

  Segmentation 
  ci 
  arse; 
  6 
  segments 
  in 
  2.9 
  nun; 
  segments 
  smooth, 
  

   apparently 
  not 
  annulated; 
  no 
  appendages 
  observed; 
  test 
  thick 
  

   ag 
  carbonaceous 
  film). 
  

   Dimensions. 
  Length 
  of 
  lai 
  specimen 
  observed, 
  11. 
  7 
  mm 
  

  

  and 
  \\ 
  idth 
  at 
  broadest 
  end, 
  l 
  mm. 
  

  

  This 
  small 
  l>m 
  common 
  and 
  characteristic 
  form 
  lias 
  b 
  

   termed 
  Pod 
  i 
  obde 
  1 
  I 
  o 
  psis 
  in 
  allusion 
  to 
  its 
  similarity 
  to 
  the 
  

   recent 
  genus 
  Pon 
  tobdel 
  la 
  , 
  from 
  which, 
  however, 
  no 
  cl 
  

   ematic 
  relationship 
  of 
  the 
  fossil 
  with 
  thai 
  highly 
  specialized 
  

   hi 
  worms 
  is 
  claimed. 
  

   The 
  form 
  is 
  most 
  common 
  in 
  the 
  Dtica 
  shah- 
  of 
  the 
  Rural 
  ceme- 
  

   near 
  Albany, 
  but 
  it 
  Ims 
  also 
  been 
  observed 
  in 
  the 
  lower 
  

   shale 
  of 
  Mechanicsville. 
  

  

  