﻿502 
  Dr. 
  L. 
  Cognetti 
  de 
  Martiis 
  on 
  the 
  

  

  versely 
  striped 
  ampulla, 
  which 
  is 
  somewhat 
  broader 
  distally 
  

   than 
  at 
  the 
  rounded 
  proximal 
  end, 
  and 
  of 
  an 
  abruptly- 
  

   separated 
  duct, 
  about 
  a 
  third 
  as 
  long 
  and 
  as 
  broad 
  as 
  the 
  

   ampulla. 
  Into 
  the 
  proximal 
  end 
  of 
  this 
  duct 
  opens 
  a 
  small 
  

   diverticulum, 
  which 
  contains 
  some 
  (4-5) 
  oval 
  seminal 
  

   chambers. 
  The 
  diverticulum 
  is 
  enclosed 
  in 
  the 
  duct-wall, 
  

   but 
  projects 
  above 
  its 
  surface 
  (PI. 
  XIII. 
  fig. 
  10). 
  

  

  Hab. 
  Coorloon 
  {Mr, 
  Shungara 
  Narayana, 
  23. 
  vi. 
  1910). 
  

  

  The 
  diverticulum 
  of 
  the 
  spermathecce 
  enclosed 
  in 
  the 
  duct- 
  

   wall 
  is 
  an 
  important 
  feature 
  of 
  this 
  new 
  species, 
  which 
  also 
  

   appears 
  in 
  Megascolex 
  cceruleus, 
  R. 
  Tempi. 
  *, 
  and 
  M. 
  hender- 
  

   soni, 
  Mich, 
  f, 
  but 
  M. 
  ratus 
  is 
  distinguished 
  from 
  these 
  two 
  

   species 
  by 
  well-defined 
  characters, 
  viz., 
  papilla3, 
  number 
  and 
  

   shape 
  of 
  the 
  sperm-sacs, 
  &c. 
  

  

  Fam. 
  Glossoscolecidae. 
  

  

  Subfam. 
  Micitocn&TiNm. 
  

  

  Glyphidrilus 
  annandalei, 
  Mich. 
  (PI. 
  XIII. 
  figs. 
  11 
  & 
  12.) 
  

   Glyphidrilus 
  annandalei, 
  Michaelsen, 
  (13) 
  p. 
  101. 
  

  

  Nine 
  mature 
  or 
  nearly 
  mature 
  specimens, 
  six 
  of 
  them 
  com- 
  

   plete 
  and 
  three 
  incomplete 
  young 
  specimens. 
  

  

  External 
  characters. 
  — 
  The 
  longest, 
  but 
  not 
  fully 
  mature, 
  

   specimen 
  measures 
  165 
  mm. 
  in 
  length, 
  and 
  2*5-3 
  mm. 
  in 
  

   greatest 
  (at 
  the 
  x. 
  segment 
  and 
  clitellum 
  $ 
  ) 
  or 
  1 
  mm. 
  in 
  

   smallest 
  thickness 
  (at 
  the 
  posterior 
  end). 
  This 
  specimen 
  is 
  

   composed 
  of 
  205 
  segments, 
  but 
  the 
  tail 
  is 
  wanting. 
  Other 
  

   mature 
  or 
  nearly 
  mature 
  specimens 
  : 
  length 
  90-128 
  mm., 
  

   greatest 
  thickness 
  3*5—4 
  mm., 
  smallest 
  thickness 
  1—1*5 
  mm. 
  ; 
  

   number 
  of 
  segments 
  125 
  (for 
  a 
  length 
  of 
  90 
  mm.) 
  to 
  322 
  (for 
  

   a 
  length 
  of 
  128 
  mm.). 
  

  

  The 
  shape 
  of 
  the 
  body 
  is 
  very 
  similar 
  to 
  that 
  of 
  Criodrilus 
  

   and 
  Alma. 
  The 
  anterior 
  region 
  is 
  conical 
  and 
  provided 
  at 
  

   the 
  end 
  with 
  a 
  broad 
  and 
  short 
  prostomium. 
  

  

  In 
  some 
  specimens 
  there 
  is 
  a 
  small 
  transverse 
  furrow 
  on 
  

   the 
  dorsal 
  surface 
  of 
  the 
  prostomium, 
  which 
  determines 
  the 
  

   head 
  prolobous. 
  

  

  Segments 
  i.-iii. 
  are 
  short, 
  iv.— 
  xii. 
  are 
  the 
  longest 
  of 
  all, 
  

   and 
  appear 
  more 
  or 
  less 
  distinctly 
  triannulated. 
  

  

  In 
  the 
  mature 
  specimens 
  the 
  body 
  is 
  somewhat 
  depressed 
  

   between 
  the 
  xxv. 
  and 
  xxxv. 
  segments, 
  and 
  this 
  depression 
  

   extends 
  often 
  to 
  all 
  the 
  clitellar 
  region. 
  

  

  * 
  See 
  Michaelsen, 
  (7) 
  p. 
  232, 
  ubi 
  liter. 
  

  

  t 
  See 
  Michaelsen, 
  (11) 
  p. 
  162, 
  and 
  (12) 
  p. 
  184, 
  pi. 
  xiii. 
  fig. 
  23. 
  

  

  % 
  The 
  fin-like 
  lateral 
  plates 
  are 
  not 
  included. 
  

  

  