﻿THE 
  ANATOJIY 
  OF 
  ICEOILOCH/T-TUS, 
  GLAPAHEDE. 
  151 
  

  

  Fig. 
  57. 
  — 
  Eiilarj,'ed 
  portion 
  of 
  tlie 
  lip 
  of 
  a 
  nepliridiostome. 
  The 
  dark 
  black 
  

   dots 
  stain 
  red, 
  the 
  i,n-ey 
  siiadini^ 
  blue 
  in 
  niethvl-l)liie-eobin 
  preparations. 
  

   XllSO. 
  

  

  Fig. 
  58. 
  — 
  Horizontal 
  section 
  through 
  three 
  genital 
  segments, 
  showing 
  tiie 
  

   relation 
  of 
  the 
  ovary 
  to 
  the 
  nephridium. 
  X 
  6G. 
  

  

  Fig. 
  59. 
  — 
  Transverse 
  section 
  tlirough 
  a 
  genital 
  segment, 
  x 
  GO. 
  

  

  Fig. 
  60. 
  — 
  Section 
  througli 
  a 
  nephridial 
  tube, 
  showing 
  the 
  development 
  of 
  the 
  

   ova. 
  X 
  380. 
  

  

  Figs. 
  61 
  — 
  63. 
  — 
  Sections 
  of 
  ova 
  in 
  different 
  stages 
  of 
  maturation, 
  x 
  380. 
  

  

  Fig. 
  64. 
  — 
  Optical 
  section 
  of 
  living 
  mature 
  ovum, 
  x 
  212. 
  

  

  Fig. 
  65. 
  — 
  Optical 
  section 
  of 
  living 
  mature 
  ovum 
  afier 
  remaining 
  some 
  hours 
  

   in 
  sea-water. 
  X 
  212. 
  

  

  Fig. 
  66. 
  — 
  Surface 
  view 
  of 
  living 
  mature 
  ovum. 
  X 
  212. 
  

  

  