﻿No.ii:i3. 
  TREMATODE 
  PARASITES 
  OF 
  FISHES— 
  LINTON. 
  545 
  

  

  IHstomum 
  mcwrocoti/le 
  Diesing. 
  from 
  Mold 
  tnola. 
  

  

  Fig. 
  8. 
  Side 
  view 
  of 
  alcoholic 
  specimens, 
  slightly 
  eularged. 
  

  

  9. 
  Partial 
  sketch 
  of 
  longitudinal 
  vertical 
  section 
  of 
  body. 
  A 
  specimen 
  was 
  

   cut, 
  bisected 
  longitudinally 
  with 
  a 
  razor, 
  and 
  the 
  inner 
  aspect 
  of 
  the 
  left 
  

   half 
  sketched. 
  Enlarged 
  about 
  eight 
  times. 
  

   10. 
  Transverse 
  section 
  through 
  neck, 
  showing 
  branches 
  of 
  the 
  intestine, 
  vas 
  

   deferens, 
  uterus, 
  etc. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  Plate 
  XLVI. 
  

   Distomiim 
  macrocotijle 
  Diesing. 
  

  

  Fig. 
  1. 
  Transverse 
  section 
  toward 
  posterior 
  end 
  of 
  body. 
  Zeiss 
  2/A, 
  draw-tube 
  

   open. 
  

  

  2. 
  Longitudinal 
  vertical 
  section 
  through 
  posterior 
  end 
  of 
  bodj-, 
  showing 
  common 
  

  

  longitudinal 
  vessel; 
  (. 
  e., 
  the 
  two 
  vessels 
  /. 
  (. 
  in 
  Fig. 
  1, 
  anastomose 
  near 
  

   the 
  j)osterior 
  end 
  of 
  the 
  bofly. 
  

  

  3. 
  Diagram 
  of 
  cirrus, 
  vas 
  deferens, 
  uterus, 
  etc. 
  

  

  4. 
  Transverse 
  section 
  of 
  uterus. 
  Zeiss 
  2/D, 
  draw-tube 
  open. 
  

  

  5. 
  Transverse 
  section 
  of 
  vas 
  deferens 
  and 
  portion 
  of 
  prostate 
  gland. 
  Zeiss 
  2/D, 
  

  

  draw-tube 
  open. 
  

  

  IHstomum 
  <jracUe 
  Diesing, 
  from 
  Lejjomis 
  uuriliis 
  and 
  Eu2)omoiis 
  jiallidus. 
  

  

  6. 
  Ventral 
  view 
  of 
  specimen 
  from 
  gills 
  of 
  E. 
  pallidus. 
  Enlarged 
  thirty 
  times, 
  

  

  «. 
  developing 
  uterus. 
  This 
  is 
  probably 
  a 
  younger 
  stage 
  of 
  the 
  adult 
  

   which 
  Wright 
  found 
  in 
  the 
  mouth 
  of 
  the 
  American 
  bittern 
  and 
  referred 
  

   provisionally 
  to 
  I>. 
  heterostomum. 
  

  

  7. 
  Ventral 
  view 
  of 
  specimen 
  from 
  L. 
  aurllus. 
  Enlarged 
  fifteen 
  times. 
  

  

  8. 
  Side 
  view 
  of 
  anterior 
  end 
  of 
  same. 
  Enlarged 
  fourteen 
  times. 
  

  

  Plate 
  XLVII. 
  

   Distomiim 
  hujeniforme, 
  new 
  species, 
  from 
  Remora 
  remorii. 
  

  

  Fig. 
  1. 
  Dorsal 
  view, 
  life. 
  Enlarged 
  three 
  times. 
  See 
  text 
  for 
  color 
  notes. 
  

  

  2. 
  Ventral 
  view 
  of 
  same 
  after 
  lying 
  some 
  time 
  in 
  water. 
  Enlarged 
  three 
  times. 
  

  

  This 
  bears 
  a 
  strong 
  superficial 
  resemblance 
  to 
  D. 
  cymhiforme 
  Rudolphi, 
  

   from 
  Chelonia 
  and 
  Thalassochelys, 
  but 
  in 
  view 
  of 
  the 
  great 
  difference 
  of 
  

   hosts 
  it 
  is 
  not 
  likely 
  that 
  the 
  species 
  are 
  identical. 
  

  

  Distomiim 
  simplex 
  Rudolphi 
  ? 
  from 
  Microgudiis 
  tomcod 
  and 
  Hemitriptcriis 
  americaniis. 
  

  

  3. 
  Ventral 
  view 
  of 
  specimen 
  from 
  Alicrogadus 
  made 
  transparent 
  with 
  acetic 
  

  

  acid. 
  Enlarged 
  forty-five 
  times. 
  

  

  4. 
  Ova 
  of 
  same, 
  acetic 
  acid. 
  Zeiss 
  2/D, 
  draw-tube 
  open. 
  

  

  5. 
  Ventral 
  view 
  of 
  specimen 
  from 
  Hemitripterus. 
  Enlarged. 
  twenty-two 
  times. 
  

  

  6. 
  Transverse 
  section 
  of 
  body 
  of 
  specimen 
  from 
  same 
  host 
  through 
  ovary. 
  

  

  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  7. 
  Longitudinal 
  horizontal 
  section 
  of 
  body 
  of 
  specimen 
  from 
  same 
  host 
  show- 
  

  

  ing 
  ovary, 
  testis, 
  etc. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  Distomiim 
  paUens 
  Rudolphi 
  from 
  iltitera 
  schoepjii. 
  

  

  8. 
  Side 
  view. 
  Enlarged 
  about 
  five 
  times. 
  

  

  9. 
  Ventral 
  view. 
  Enlarged 
  twenty-seven 
  times. 
  

  

  Proc. 
  N. 
  3r. 
  vol. 
  XX 
  35 
  

  

  