﻿PLATE 
  VJ. 
  

  

  Fig, 
  I 
  — 
  Freshh' 
  spawned 
  ovum 
  of 
  8had, 
  showing 
  wrinkled 
  

   and 
  folded 
  vitelline 
  membrane, 
  (page 
  97.) 
  

  

  Fig. 
  2 
  — 
  Ovum 
  after 
  having 
  been 
  in 
  water 
  for 
  a 
  few 
  iv.o- 
  

   raents, 
  (page 
  9S.) 
  

  

  Fig. 
  3 
  — 
  Unimpregnated 
  or 
  impregnated 
  swollen 
  ovum, 
  

   fjhowing 
  first 
  sltige 
  of 
  formation 
  of 
  *'limb," 
  

   (page 
  98.) 
  

  

  Fig. 
  4-— 
  Impregnated 
  ovum, 
  showing 
  marking 
  indicating 
  

   first 
  segmentation 
  furrow, 
  (page 
  100.) 
  

  

  Fig. 
  5 
  — 
  Unin)]iregnated, 
  or 
  impregnated, 
  swollen 
  ovum, 
  

   showing 
  'Mimb/" 
  (page 
  98 
  ) 
  

  

  Fig. 
  6 
  — 
  Impregnated 
  ovum, 
  showing 
  first 
  segmentation 
  

   furrow 
  and 
  marking 
  indicating 
  aecond, 
  (page 
  

   10;i.) 
  

  

  Fig. 
  7 
  — 
  Early 
  stage 
  of 
  segmentation, 
  (page 
  100. 
  j 
  

   Fig. 
  8—" 
  Mulh.-rry 
  " 
  stage, 
  (page 
  101.) 
  

   Fig. 
  9~Stage 
  showing 
  dorsal 
  folds, 
  (page 
  101.) 
  

   Fig. 
  10 
  — 
  One 
  of 
  the 
  " 
  irregulars," 
  (page 
  104.) 
  

   Fig. 
  11 
  — 
  Ova 
  ij.itural 
  size, 
  (page 
  97.) 
  

  

  