﻿496 
  Dr. 
  L. 
  Cognetti 
  de 
  Martiis 
  on 
  the 
  

  

  A 
  large 
  pair 
  of 
  testicular 
  vesicles 
  runs 
  through 
  septum 
  

   ix.-x. 
  laterally 
  to 
  the 
  gut. 
  The 
  anteseptal 
  part 
  of 
  each 
  

   vesicle 
  (a 
  little 
  more 
  developed 
  at 
  the 
  left 
  side) 
  is 
  divided 
  

   into 
  two 
  globular 
  portions 
  by 
  a 
  constriction. 
  The 
  postseptal 
  

   part 
  is 
  more 
  developed 
  than 
  the 
  anteseptal, 
  from 
  which 
  it 
  is 
  

   separated 
  by 
  a 
  deep 
  constriction. 
  The 
  postseptal 
  part 
  is 
  

   irregularly 
  pear-shaped, 
  diminishing 
  in 
  diameter 
  at 
  the 
  poste- 
  

   rior 
  end, 
  and 
  it 
  is 
  entirely 
  contained 
  in 
  the 
  x. 
  segment 
  

   (PI. 
  XIII. 
  tig. 
  2). 
  On 
  the 
  left 
  side 
  the 
  postseptal 
  part 
  is 
  

   longer 
  than 
  on 
  the 
  right, 
  and 
  at 
  the 
  end 
  is 
  rather 
  S-shaped. 
  

  

  A 
  sperm-duct-funnel 
  is 
  found 
  in 
  the 
  postseptal 
  portion 
  of 
  

   each 
  vesicle, 
  united 
  to 
  its 
  ventral 
  wall 
  just 
  behind 
  septum 
  

   ix.-x. 
  The 
  sperm-ducts 
  are 
  short 
  and 
  a 
  little 
  undulated 
  ; 
  

   they 
  enter 
  into 
  the 
  proximal 
  part 
  of 
  the 
  prostates. 
  The 
  

   prostates 
  are 
  white 
  and 
  tubular 
  ; 
  they 
  are 
  closely 
  coiled 
  on 
  each 
  

   side. 
  They 
  are 
  of 
  equal 
  thickness 
  throughout 
  their 
  length, 
  

   and 
  their 
  distal 
  extremity 
  is 
  provided 
  with 
  a 
  short, 
  thinner, 
  

   muscular 
  tract. 
  

  

  A 
  pair 
  of 
  enormously 
  developed 
  ovaries 
  lies 
  in 
  the 
  xi. 
  

   segment, 
  suspended 
  to 
  the 
  anterior 
  septum 
  along 
  a 
  line 
  that 
  

   almost 
  entirely 
  encloses 
  the 
  gut. 
  The 
  ovaries 
  are 
  enclosed 
  in 
  

   a 
  very 
  thin-walled 
  pericesophageal 
  capsule 
  that 
  extends 
  from 
  

   septum 
  x.-xi. 
  to 
  septum 
  xi.-xii. 
  At 
  the 
  posterior 
  wall 
  of 
  

   the 
  ovarial 
  capsule 
  (viz. 
  septum 
  xi.-xii.) 
  are 
  placed, 
  on 
  each 
  

   side, 
  the 
  orifice 
  of 
  an 
  egg-sac 
  and 
  the 
  funnel 
  of 
  the 
  oviduct. 
  

   The 
  first 
  is 
  surrounded 
  by 
  a 
  circle 
  and 
  placed 
  dorsally 
  to 
  

   the 
  gut. 
  The 
  little 
  oviducal 
  funnels 
  are 
  ventral 
  and 
  con- 
  

   nected 
  with 
  the 
  short 
  and 
  straight 
  oviducts. 
  

  

  The 
  egg-sacs 
  are 
  cylindrical 
  and 
  prolonged 
  backwards, 
  but 
  

   contained 
  in 
  the 
  xii. 
  segment, 
  in 
  which 
  they 
  are 
  only 
  once, 
  

   folded. 
  The 
  cavity 
  of 
  the 
  egg-sacs 
  is 
  partially 
  obliterated 
  by 
  

   a 
  rich 
  network 
  of 
  blood-vessels, 
  but 
  eggs 
  are 
  wanting. 
  

  

  Spermathecse 
  in 
  viii. 
  segment 
  near 
  to 
  septum 
  vii.-viii. 
  

   Each 
  spermatheca 
  consists 
  of 
  a 
  white, 
  thin-walled, 
  spherical 
  

   ampulla 
  and 
  a 
  thin, 
  long, 
  bent 
  duet 
  * 
  which 
  traverses 
  the 
  

   b 
  )dy-wall 
  to 
  open 
  directly 
  to 
  the 
  exterior. 
  Muscular 
  atrial 
  

   chambers 
  are 
  wanting. 
  The 
  two 
  ampullae 
  lie 
  dorsally 
  to 
  the 
  

   oesophagus, 
  and 
  the 
  pole 
  of 
  each 
  ampulla, 
  which 
  is 
  opposite 
  

   to 
  the 
  origin 
  of 
  the 
  canal, 
  is 
  fastened 
  to 
  the 
  middle 
  line 
  of 
  

   the 
  posterior 
  surface 
  of 
  septum 
  vii.-viii. 
  by 
  a 
  very 
  short 
  and 
  

   straight 
  ligament 
  (PI. 
  XIII. 
  fig. 
  3). 
  

  

  Hob. 
  Arumanaliur, 
  45 
  km. 
  E.S.E. 
  from 
  Trevandrum 
  {Mr. 
  

   /?. 
  Shungara 
  Narayana, 
  23. 
  vi. 
  1910). 
  

  

  This 
  new 
  species 
  of 
  Drawida 
  is 
  easily 
  distinguished 
  from 
  

  

  * 
  See 
  Michaelsen, 
  (12) 
  p. 
  139. 
  

  

  