﻿78 
  W. 
  B. 
  HANDLES. 
  

  

  PLATE 
  6. 
  

  

  !FiG, 
  39. 
  — 
  General 
  dissection 
  of 
  T. 
  magus 
  from 
  above. 
  Tiie 
  mantle 
  lias 
  

   been 
  cut 
  along 
  the 
  middle 
  line 
  up 
  to 
  the 
  pericardium, 
  each 
  half 
  being 
  reflected 
  ; 
  

   the 
  floor 
  of 
  the 
  mantle-cavity 
  and 
  dorsal 
  surface 
  of 
  the 
  head 
  have 
  been 
  removed 
  

   to 
  show 
  the 
  arrangement 
  of 
  the 
  viscera, 
  x 
  3^. 
  

  

  Fig. 
  40. 
  — 
  General 
  dissection 
  of 
  T. 
  lineatus 
  from 
  the 
  right 
  side. 
  Tiie 
  

   mantle 
  has 
  been 
  cut 
  on 
  the 
  right 
  side, 
  close 
  to 
  the 
  body-wall, 
  and 
  reflected 
  to 
  

   the 
  left. 
  The 
  body-wall 
  has 
  been 
  removed 
  from 
  the 
  right 
  side 
  of 
  the 
  head 
  and 
  

   body. 
  X 
  3. 
  

  

  Fig. 
  i\. 
  — 
  Pallial 
  complex 
  of 
  T. 
  magus. 
  The 
  mantle 
  has 
  been 
  cut 
  along 
  

   the 
  right 
  and 
  left 
  sides 
  and 
  removed 
  from 
  the 
  body 
  ; 
  the 
  pericardium, 
  heart, 
  

   and 
  part 
  of 
  the 
  right 
  kidney 
  being 
  removed 
  with 
  it. 
  x 
  2. 
  

  

  Fig. 
  42. 
  — 
  Pallial 
  complex 
  of 
  T. 
  lineatus, 
  removed 
  from 
  the 
  body 
  as 
  above. 
  

   X 
  2. 
  

  

  Fig. 
  43. 
  — 
  Pallial 
  complex 
  of 
  T. 
  zizyphinus. 
  x 
  3. 
  

  

  Fig. 
  44. 
  — 
  Side 
  view 
  of 
  the 
  buccal 
  mass 
  of 
  T. 
  zizyphinus, 
  showing 
  the 
  

   salivary 
  gland, 
  cerebral 
  ganglia, 
  buccal 
  nerves, 
  and 
  labial 
  commissures, 
  x 
  3. 
  

  

  Fig. 
  45. 
  — 
  Stomach 
  of 
  T. 
  lineatus 
  opened 
  to 
  show 
  internal 
  structure. 
  

   X 
  5. 
  

  

  Fig. 
  46. 
  — 
  Section 
  through 
  the 
  stomach 
  of 
  T. 
  lineatus. 
  X 
  350. 
  

  

  Fig. 
  47. 
  — 
  Heart 
  of 
  T. 
  magus, 
  seen 
  from 
  above. 
  The 
  roof 
  of 
  the 
  peri- 
  

   cardium 
  has 
  been 
  removed, 
  x 
  4. 
  

  

  Fig. 
  48. 
  — 
  Pericardial 
  cavity 
  of 
  T. 
  magus; 
  the 
  heart 
  and 
  rectum 
  have 
  been 
  

   removed 
  together 
  with 
  the 
  roof 
  of 
  the 
  pericardium. 
  The 
  apertures 
  of 
  the 
  two 
  

   reno-pericardial 
  canals 
  are 
  seen 
  on 
  the 
  left 
  side, 
  and 
  the 
  large 
  efferent 
  renal 
  

   vein 
  on 
  the 
  floor 
  of 
  the 
  pericardial 
  cavity, 
  x 
  5. 
  

  

  Fig. 
  49. 
  — 
  Dissection 
  of 
  the 
  right 
  kidney 
  of 
  T. 
  zizyphinus, 
  showing 
  the 
  

   anterior 
  and 
  posterior 
  lobes, 
  the 
  ampullary 
  enlargement 
  of 
  the 
  ureter, 
  also 
  the 
  

   opening 
  of 
  the 
  oviduct 
  into 
  the 
  ureter 
  (semi-diagrammatic). 
  X 
  3. 
  

  

  