﻿4 
  PEOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  67 
  

  

  more 
  than 
  semicircular 
  in 
  shape. 
  The 
  postero-lateral 
  ray 
  is 
  thicker 
  

   than 
  the 
  medio-lateral 
  ray. 
  All 
  the 
  rays 
  with 
  the 
  exception 
  of 
  the 
  

   dorsal 
  ray 
  are 
  more 
  or 
  less 
  sharply 
  pointed 
  at 
  the 
  ends 
  and 
  do 
  not 
  

   reach 
  the 
  margin 
  of 
  the 
  lobes. 
  The 
  terminal 
  portion 
  of 
  the 
  dorsal 
  

   ray 
  is 
  bifurcated, 
  each 
  branch 
  being 
  tridigitate. 
  The 
  spicules 
  are 
  

   slender 
  and 
  tubular 
  from 
  738 
  to 
  828u. 
  long 
  and 
  terminate 
  in 
  finely 
  

   pointed 
  ends. 
  The 
  gubernaculum 
  is 
  an 
  elongate 
  slender 
  structure 
  

   about 
  90[x 
  long. 
  

  

  Female. 
  — 
  The 
  females 
  are 
  from 
  7 
  to 
  11 
  mm. 
  long 
  by 
  308 
  to 
  324pi 
  

   wide. 
  The 
  position 
  of 
  the 
  vulva 
  corresponds 
  approximately 
  to 
  the 
  

   beginning 
  of 
  the 
  posterior 
  third 
  of 
  the 
  body. 
  The 
  distance 
  from 
  the 
  

   anus 
  to 
  the 
  tip 
  of 
  the 
  bristle 
  that 
  is 
  inserted 
  in 
  the 
  end 
  of 
  the 
  bluntly 
  

   rounded 
  tail 
  is 
  from 
  180 
  to 
  234pi 
  (fig. 
  3). 
  The 
  eggs 
  are 
  from 
  71 
  to 
  

   76/x, 
  long 
  by 
  41 
  to 
  46/a 
  wide. 
  

  

  Host. 
  — 
  Procyon 
  lotor. 
  

  

  Location. 
  — 
  Duodenum. 
  

  

  Locality. 
  — 
  Prince 
  Georges 
  County, 
  Maryland. 
  

  

  Type 
  specimen. 
  — 
  TJ. 
  S. 
  National 
  Museum. 
  Helminthological 
  Col- 
  

   lections 
  No. 
  26070. 
  

  

  REFERENCES 
  TO 
  LITERATURE 
  CITED 
  

  

  Baylis, 
  H. 
  A. 
  and 
  Daubney, 
  R. 
  

  

  1923. 
  — 
  A 
  further 
  report 
  on 
  parasitic 
  nematodes 
  in 
  the 
  collection 
  of 
  the 
  

   Zoological 
  Survey 
  of 
  India, 
  Rec. 
  Indian 
  Mus., 
  Calcutta, 
  vol. 
  25, 
  

   pt. 
  6, 
  Dec, 
  pp. 
  551-578, 
  figs. 
  1-20. 
  

   Molin 
  Raffaele. 
  

  

  [1861a]. 
  — 
  II 
  sottordine 
  degli 
  acrofalli 
  ordinate 
  scientificamente 
  seconde 
  i 
  

   risultamenti 
  delle 
  indagini 
  anatomiche 
  ed 
  embriogeniche, 
  Mem. 
  

   r. 
  1st. 
  Veneto 
  di 
  sc, 
  lett. 
  et 
  arti, 
  Venezia 
  (I860), 
  vol. 
  9, 
  pp. 
  

   427-633, 
  pis. 
  25-33. 
  

   Stossich, 
  Michele. 
  

  

  1899d. 
  — 
  Strongylidae. 
  Lavoro 
  monografico, 
  Boll. 
  Soc. 
  adriat. 
  di 
  sc. 
  nat, 
  in 
  

   Trieste, 
  vol. 
  19, 
  pp. 
  55-152. 
  

  

  o 
  

  

  