﻿NO. 
  1125. 
  

  

  CESTODE 
  PARASITES 
  OF 
  FISHES— 
  LINTON. 
  

  

  453 
  

  

  the 
  construction 
  of 
  these 
  sketches, 
  draw-tube 
  open, 
  is 
  approximately 
  that 
  given 
  

   in 
  the 
  followino- 
  table 
  : 
  

  

  It 
  shonlcl 
  1)0 
  remembered, 
  in 
  using 
  this 
  table, 
  that 
  the 
  figures 
  have 
  been 
  reduced 
  

   one-fourth 
  linear 
  in 
  the 
  process 
  of 
  printing. 
  

  

  Most 
  of 
  the 
  sketches 
  were 
  made 
  with 
  the 
  aid 
  of 
  a 
  camera 
  lucida. 
  Those 
  in 
  wliich 
  

   the 
  Zeiss 
  eyepieces 
  and 
  objectives 
  were 
  used 
  were 
  made 
  with 
  an 
  Abbe 
  camera 
  Incida. 
  

   It 
  is 
  to 
  be 
  understood 
  that 
  the 
  sketches 
  are 
  made 
  from 
  alcoholic 
  specimens 
  unless 
  

   otherwise 
  stated. 
  

  

  PLArE 
  XXVII. 
  

  

  Tania 
  salveUnt, 
  from 
  Cristivomer 
  namaycush. 
  

  

  Fig. 
  1. 
  Head 
  and 
  neck. 
  Enlarged 
  fourteen 
  times. 
  

  

  2. 
  Head, 
  neck, 
  and 
  tirst 
  segments 
  of 
  another 
  specimen. 
  Enlarged 
  fourteen 
  

  

  times. 
  

  

  3. 
  Small 
  strobile, 
  entire. 
  Enlarged 
  fourteen 
  times. 
  

  

  4. 
  Head 
  and 
  neck. 
  Enlarged 
  thirty 
  times. 
  

  

  5. 
  Single 
  proglottis 
  of 
  one 
  of 
  longer 
  strobiles. 
  Enlarged 
  fourteen 
  times. 
  

  

  Tantia 
  ocellata 
  Rudolphi 
  (?), 
  from 
  AmhlopUtes 
  rupcstria. 
  

  

  6. 
  Front 
  view 
  of 
  head. 
  Enlarged 
  fifteen 
  times. 
  

  

  7. 
  Same 
  enlarged. 
  Enlarged 
  thirty 
  times. 
  

  

  8. 
  Posterior 
  segments. 
  Enlarged 
  fourteen 
  times. 
  

  

  9. 
  Postero-median 
  segment, 
  in 
  oil 
  of 
  cloves. 
  Enlarged 
  fifteen 
  times. 
  

  

  10. 
  Longitudinal 
  vertical 
  section 
  through 
  cirrus 
  and 
  vagina.. 
  Zeiss 
  2/A, 
  draw- 
  

   tube 
  open 
  . 
  

   Longitudinal 
  horizontal 
  section 
  through 
  cirrus-pouch 
  and 
  vagina. 
  Zeiss 
  

   2/A, 
  draw-tube 
  closed. 
  

  

  11. 
  

  

  Monohothrmm 
  hexacotyle, 
  new 
  species, 
  from 
  Catostomtts 
  sj). 
  

  

  12. 
  Ventral 
  view 
  of 
  specimen. 
  Enlarged 
  three 
  times. 
  

  

  13. 
  Head 
  of 
  same, 
  side 
  view. 
  Enlarged 
  fifteen 
  times. 
  

  

  14. 
  Head 
  of 
  another 
  specimen, 
  side 
  view. 
  Enlarged 
  fifteen 
  times. 
  

  

  15. 
  Marginal 
  view 
  of 
  head. 
  Enlarged 
  fifteen 
  times. 
  

  

  IG. 
  Transverse 
  section 
  near 
  anterior 
  end 
  of 
  head. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  17. 
  Transverse 
  section 
  of 
  head 
  farther 
  back 
  than 
  fig. 
  16. 
  Zeiss 
  2/A, 
  draw-tube 
  

  

  open. 
  

  

  18. 
  Cell 
  from 
  parenchyma 
  (see 
  Plate 
  XXTIII, 
  Fig. 
  2). 
  Zeiss 
  4/D, 
  draw-tube 
  

  

  open. 
  

  

  19, 
  Another 
  cell 
  from 
  same. 
  Zeiss 
  2/D, 
  draw-tube 
  open. 
  

  

  Plate 
  XXVIII. 
  

  

  (Mo7iobothrium 
  hexacotyle, 
  new 
  species 
  (continued). 
  

  

  Fig. 
  1. 
  Transverse 
  section 
  toward 
  base 
  of 
  head. 
  Zeiss 
  2/A, 
  draw-tube 
  oi>en. 
  

  

  2. 
  Transverse 
  section 
  through 
  middle 
  of 
  body, 
  r/c. 
  cell 
  in 
  parenchynea, 
  see 
  Plate 
  

  

  XXVII, 
  Figs. 
  18 
  and 
  19. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  3. 
  Diagrammatic 
  sketch, 
  ventral 
  view. 
  

  

  