﻿54G 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  Distovmm 
  vaJdeinflatuvi 
  Stossicli 
  from 
  Alufera 
  schwpfii. 
  

  

  Fig. 
  10. 
  Veutral 
  view 
  of 
  living 
  specimen. 
  Enlarged 
  twenty- 
  seven 
  times. 
  

  

  11. 
  View 
  of 
  mouth 
  with 
  circumoval 
  spines. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  12. 
  Sketch 
  of 
  individual 
  compressed. 
  Enhirged 
  twenty-seven 
  times. 
  

  

  13. 
  Spines 
  from 
  back 
  of 
  Jit^ck. 
  Zeiss 
  2/D, 
  draw-tube 
  closed. 
  

  

  14. 
  Single 
  oral 
  spine. 
  Zeiss 
  2/D, 
  draw-tube 
  close<l. 
  

  

  Plate 
  XL 
  VI 
  II. 
  

  

  Distoininn 
  valdeinflatum 
  Stossich. 
  

  

  Fig. 
  1. 
  Part 
  of 
  transverse 
  section 
  just 
  behind 
  the'])harynx. 
  Zeiss 
  2/A, 
  draw-tube 
  

   open. 
  

  

  2. 
  Portion 
  of 
  body 
  wall 
  of 
  neck. 
  Zeiss 
  4/D, 
  draw-tube 
  open. 
  

  

  IHstomiim 
  conlortiim, 
  Kudolphi 
  host 
  not 
  known, 
  probably 
  Alola 
  mola. 
  

  

  3. 
  Side 
  view 
  of 
  alcoholic 
  specimen. 
  Enlarged 
  fourteen 
  times. 
  

  

  4. 
  Side 
  view 
  of 
  head 
  of 
  same 
  showing 
  oval 
  sucker 
  with 
  pharyngeal 
  papilla. 
  

  

  Enlarged 
  forty-six 
  times. 
  

  

  5. 
  Tuberculatod 
  spines 
  of 
  neck. 
  Enlarged 
  two 
  hundred 
  and 
  twenty-five 
  times. 
  

  

  6. 
  Longitudinal 
  vertical 
  section 
  of 
  head 
  showing 
  cirrus. 
  Zeiss 
  2/A, 
  draw-tube 
  

  

  open 
  . 
  

  

  7. 
  Transverse 
  seetiou 
  near 
  posterior 
  end 
  of 
  body. 
  Zeiss 
  2/A, 
  draw-tube 
  open. 
  

  

  IHstomiim 
  nigrottavnm 
  Rudolphi, 
  from 
  Mola 
  mola. 
  

  

  8. 
  Side 
  view, 
  alcoholic 
  specimen. 
  Enlarge<l 
  four 
  and 
  one-half 
  times. 
  This 
  

  

  specimen 
  has 
  numerous 
  folds 
  of 
  the 
  uterus 
  in 
  the 
  pedicel 
  of 
  the 
  ventral 
  

   sucker. 
  

  

  9. 
  Side 
  view 
  of 
  another 
  specimen. 
  Enlarged 
  nine 
  times. 
  In 
  this 
  vspecimen 
  the 
  

  

  testes 
  aie 
  juxtaposed. 
  

  

  10. 
  Side 
  view 
  of 
  a 
  specimen 
  with 
  testes 
  remote. 
  Enlarged 
  three 
  times. 
  

  

  11. 
  Transverse 
  section 
  of 
  body 
  a 
  short 
  distance 
  back 
  of 
  veutial 
  sucker, 
  show- 
  

  

  ing 
  testis, 
  seminal 
  receptacle, 
  prostate 
  and 
  vitelline 
  glands, 
  etc. 
  Zeiss 
  

   2/A, 
  draw-tube 
  open. 
  

  

  Plate 
  XLIX. 
  

   Disiomum 
  nigroflavum 
  Rudolphi. 
  

  

  Fig. 
  1. 
  Longitudinal 
  vertical 
  section, 
  showing 
  posterior 
  testis, 
  ovary, 
  shell 
  gland, 
  etc. 
  

   Enlarged 
  about 
  thirty 
  times. 
  The 
  granular 
  contents 
  of 
  the 
  longitudinal 
  

   vessel 
  showing 
  a 
  few 
  of 
  the 
  characteristic 
  crystals 
  noted 
  in 
  text. 
  Tlie 
  

   latter 
  are 
  greatly 
  enlarged 
  in 
  the 
  sketch. 
  

  

  2. 
  Transverse 
  section 
  of 
  body 
  back 
  of 
  ovary. 
  Zeiss 
  2/A, 
  draw-tube 
  o])en. 
  

  

  IHstomum 
  foliatum, 
  new 
  species, 
  from 
  Mola 
  mola. 
  

  

  3. 
  Side 
  view, 
  alcoholic. 
  Enlarged 
  niue 
  times. 
  

  

  4. 
  Longitudinal 
  vertical 
  section, 
  enlarged 
  about 
  thirty 
  times, 
  showing 
  testes, 
  

  

  ovary, 
  shell-gland, 
  vitelline 
  glands, 
  iiterns, 
  etc. 
  

  

  5. 
  Transverse 
  section 
  of 
  vas 
  deferens 
  and 
  ])rostate 
  gland; 
  enlarged 
  from 
  Fig. 
  3, 
  

  

  cells 
  partly 
  diagrammatic. 
  Zeiss 
  2/D, 
  draw-tube 
  oven. 
  

  

  Plate 
  L. 
  

   Distomum 
  foliatum, 
  new 
  species. 
  

  

  Fig. 
  1. 
  Side 
  view 
  of 
  specimen. 
  Enlaiged 
  about 
  twenty-six 
  times. 
  

  

  2. 
  View 
  of 
  neck 
  from 
  above. 
  Enlarged 
  about 
  four 
  and 
  one-half 
  times. 
  

  

  3. 
  Front 
  view 
  of 
  pedicel 
  and 
  ventral 
  sucker. 
  Enlarged 
  about 
  four 
  and 
  one-half 
  

  

  times. 
  

  

  