﻿424 
  

  

  PROCEEDINGS 
  OF 
  TEE 
  NATIONAL 
  MUSEUM. 
  

  

  List 
  of 
  parasites 
  and 
  hosts 
  — 
  Contiuued. 
  

  

  No. 
  

  

  Parasite. 
  

  

  Sp'iii'iiobothriviii 
  vftriahllf 
  Linton 
  

  

  l'lii/lhili(itliriir„i 
  /nluitinii 
  Liiilon 
  

  

  Oiyi/iiiatobiithrhnn 
  cniijvstinti 
  Linton 
  . 
  

   pauliiiii, 
  new 
  spe- 
  

   cies. 
  

  

  crenulatum, 
  new 
  

   species. 
  

  

  ("rossobotli 
  rum 
  laciniatum 
  Linton 
  

  

  Onchobnthrium 
  iincinatinn 
  Diesing 
  . 
  . 
  . 
  

  

  Calliohothriuni 
  eschrichlii 
  T.iiierten 
  ... 
  

  

  verticiUattuii 
  Uudolphi 
  

  

  Phofiiiibothrium 
  Jasiui/i 
  Linton 
  

  

  Tliiisanitcrphahiiii 
  rrispum 
  Linton 
  . 
  . 
  . 
  . 
  

   Jilii/ucIwbo(hrii(in 
  1 
  1 
  ulbifer 
  Liint 
  on 
  .... 
  

   tuiiiidiihnii 
  Linton 
  . 
  

   tcnuisj'ine 
  Linton 
  . 
  

   i}npansj>liii' 
  Linton 
  

   longicnrne 
  Linton 
  . 
  . 
  

   brevispiiie, 
  new 
  spe- 
  

   cies. 
  

   agile, 
  new 
  species.. 
  

  

  Tetrarhynchus 
  robustvm 
  Linton 
  

  

  llsulcatum 
  Linton 
  

  

  tenue 
  Linton 
  

  

  Host. 
  

  

  Dasi/atin 
  c.cn 
  rrura 
  . 
  . 
  . 
  

   Daxiia 
  t 
  in 
  cent 
  rii 
  ra. 
  .. 
  

  

  I'rioiiace 
  tjlaiica 
  

  

  Galeocenlo 
  tigrirnts 
  , 
  

  

  Dasyatis 
  centrura.. 
  . 
  

  

  Carch 
  arias 
  litt 
  oralis... 
  

  

  Dasyatis 
  crntnna 
  

  

  Mustrhis 
  cauis 
  

  

  Mustelus 
  canis 
  

  

  Prionace 
  glauca 
  

  

  Galcuciiido 
  tigriniis 
  

  

  Mustelus 
  canis 
  

  

  Jlluslclus 
  canis 
  

  

  I'rionaee 
  glauca 
  ^ 
  

  

  Iiaja 
  erinacea 
  

  

  Carch 
  arias 
  litViralis 
  . 
  . 
  . 
  

   Phinoptera 
  Jionasus 
  (?). 
  

  

  Rhino2)fe)a 
  honagus 
  

  

  Uhinrqitera 
  honasus 
  

  

  Carcharinus 
  obscunis 
  (.?). 
  

   Dasyatis 
  centrura 
  

  

  I'late. 
  Figure. 
  

  

  XXXIII 
  

  

  xxxiir 
  

  

  XXXIV 
  

   XXXIV 
  

  

  XXXIV 
  

  

  7,8 
  

  

  fXXXIII 
  9-12 
  

   \XXXIVi 
  1 
  

  

  XXXIV 
  9-11 
  

   XXXIV 
  12-15 
  

  

  1. 
  T.^NIA 
  SALVELINI, 
  new 
  species. 
  

  

  (Plate 
  XXVII, 
  

  

  1-5.) 
  

  

  Ty2)e. 
  — 
  No. 
  4811, 
  U.S.IST.M. 
  From 
  intestine 
  of 
  Great 
  Lake 
  trout 
  

   [Crist 
  i 
  vomer 
  namai/cush); 
  Outer 
  Island, 
  Lake 
  Superior; 
  J. 
  "W. 
  Milner. 
  

  

  In 
  this 
  lot 
  are 
  several 
  small 
  Tceniw; 
  scolices 
  with 
  few 
  roundish 
  or 
  

   oblong 
  segments, 
  in 
  some 
  of 
  which 
  the 
  male 
  genitalia 
  were 
  developed, 
  

   otherwise 
  immature; 
  length 
  from 
  3 
  to 
  5 
  mm. 
  

  

  These 
  specimens 
  bear 
  some 
  resemblance 
  to 
  the 
  young 
  of 
  T. 
  forulosa, 
  

   Batch, 
  as 
  described 
  by 
  Zschokke.' 
  

  

  Head 
  usually 
  rounded 
  in 
  front, 
  with 
  suckers 
  directed 
  anteriorly. 
  The 
  

   diameter 
  of 
  the 
  head 
  varies 
  according 
  to 
  state 
  of 
  contraction, 
  usually 
  

   0.-') 
  to 
  (►.4 
  mm.; 
  suckers 
  relatively 
  large, 
  usually 
  directed 
  forward, 
  

   prominent, 
  rather 
  deep, 
  0.15 
  to 
  0.18 
  mm. 
  in 
  diameter, 
  aperture 
  0.1 
  mm. 
  

   in 
  diameter. 
  Neck 
  assuming 
  various 
  contraction 
  shapes; 
  in 
  some 
  con- 
  

   tinuous 
  with 
  head 
  and 
  merging 
  imperceptibly 
  in 
  body; 
  in 
  others 
  sepa- 
  

   rated 
  by 
  a 
  constriction 
  behind 
  the 
  head 
  ; 
  in 
  others 
  not 
  separated 
  from 
  

   head 
  by 
  constriction 
  but 
  with 
  segments 
  beginning 
  abruptly; 
  numerous 
  

   calcareous 
  bodies 
  in 
  neck 
  behind 
  head. 
  Usually 
  first 
  segments 
  indis- 
  

   tinct, 
  broader 
  than 
  long. 
  Oldest 
  segments 
  longer 
  than 
  broad; 
  genital 
  

   aperture 
  near 
  middle 
  of 
  lateral 
  margin 
  a 
  little 
  nearer 
  anterior 
  margin. 
  

   Vitellaria 
  making 
  a 
  narrow 
  border 
  along 
  lateral 
  margins; 
  beginning 
  of 
  

   germ 
  gland 
  at 
  posterior 
  end; 
  central 
  region 
  in 
  front 
  of 
  rudimentary 
  

   germ 
  gland 
  occupied 
  by 
  prominent 
  testicular 
  lobes; 
  cirrus-bulb 
  oblong, 
  

   elliptical, 
  convex 
  on 
  posterior, 
  straight 
  or 
  slightly 
  concave 
  on 
  anterior 
  

   surface; 
  cirrus 
  enters 
  from 
  inner 
  anterior 
  edge 
  of 
  bulb, 
  then 
  traverses 
  

   middle 
  of 
  bulb 
  to 
  orifice; 
  length 
  of 
  bulb, 
  ().2(j 
  mm. 
  ; 
  diameter, 
  0.14 
  mm 
  ; 
  

   largest 
  segments, 
  1.5 
  mm. 
  m 
  length 
  and 
  0.75 
  mm. 
  in 
  breadth. 
  

  

  ' 
  Recb. 
  Vers 
  Parasit. 
  des 
  Poissons 
  d'ean 
  douce, 
  1884, 
  p. 
  20. 
  

  

  