﻿Oligocholia 
  of 
  Travancore. 
  505 
  

  

  first 
  and 
  last 
  lines 
  of 
  setse, 
  rarely 
  more 
  ventrally, 
  and 
  they 
  

   are, 
  nearly 
  always, 
  quite 
  in 
  the 
  lines 
  of 
  the 
  setae. 
  

  

  Internal 
  anatomy. 
  — 
  The 
  septa 
  6-7 
  to 
  11-12 
  are 
  slightly 
  

   thickened. 
  

  

  A 
  moderately 
  developed 
  oblong 
  gizzard 
  occupies 
  the 
  entire 
  

   length 
  of 
  the 
  viii. 
  segment 
  and 
  a 
  little 
  part 
  of 
  the 
  vii. 
  The 
  

   intestine 
  begins 
  in 
  the 
  xiv. 
  segment. 
  There 
  are 
  three 
  pairs 
  

   of 
  hearts 
  in 
  segments 
  ix., 
  x., 
  and 
  xi. 
  

  

  Two 
  pairs 
  of 
  testes 
  and 
  sperm-duct-funnels 
  lie 
  free 
  in 
  

   segments 
  x. 
  and 
  xi. 
  The 
  sperm-sacs 
  are 
  paired 
  and 
  placed 
  

   in 
  segments 
  ix., 
  x., 
  xi., 
  and 
  xii. 
  Those 
  of 
  the 
  first 
  three 
  

   pairs 
  are 
  nearly 
  equal 
  in 
  size, 
  but 
  those 
  of 
  the 
  last 
  pair 
  are 
  

   somewhat 
  larger, 
  and 
  push 
  backwards 
  the 
  two 
  thin 
  septa 
  

   xii.-xiii. 
  and 
  xiii.-xiv. 
  

  

  No 
  prostates 
  are 
  recognizable 
  with 
  the 
  dissection 
  lens. 
  

  

  The 
  ovaries 
  depend 
  in 
  the 
  xiii. 
  segment 
  from 
  the 
  ventral 
  

   margin 
  of 
  septum 
  xii.-xiii. 
  

  

  The 
  sperm 
  atheca3 
  are 
  quite 
  intersegmental 
  in 
  position, 
  and 
  

   they 
  appear 
  as 
  white 
  little 
  spherical 
  bodies, 
  which 
  are 
  visible 
  

   through 
  the 
  thin 
  body- 
  wall. 
  They 
  are 
  not 
  provided 
  with 
  a 
  

   distinct 
  duct. 
  Their 
  number 
  may 
  reach 
  to 
  six 
  pairs 
  on 
  each 
  

   of 
  the 
  intersegmental 
  furrows 
  xiii.-xiv., 
  xiv.-xv., 
  xv.-xvi., 
  

   and 
  xvi.-xvii. 
  

  

  Hab. 
  Achencoil 
  River 
  banks 
  (Mr. 
  Shungara 
  Narayana, 
  

   3. 
  v. 
  1910), 
  Arumanallur, 
  45 
  km. 
  E.S.E. 
  from 
  Trevandrum 
  

   (idem, 
  23. 
  vi. 
  1910), 
  ? 
  Azhagiapandipuram, 
  55 
  km. 
  E.S.E. 
  

   from 
  Trevandrum 
  (young 
  specimens, 
  idem, 
  20. 
  vii. 
  1910). 
  

  

  A 
  specimen 
  from 
  the 
  second 
  locality 
  shows 
  its 
  external 
  and 
  

   internal 
  organs 
  transferred 
  three 
  segments 
  forwards. 
  Its 
  

   male 
  pores 
  are 
  on 
  intersegmental 
  furrow 
  xxvi.— 
  xxvii., 
  a 
  

   little 
  laterally 
  to 
  the 
  lines 
  of 
  setae 
  b. 
  The 
  anterior 
  end 
  is 
  

   regularly 
  shaped 
  and 
  shows 
  no 
  signs 
  of 
  regeneration. 
  

  

  Memoirs 
  cited. 
  

  

  (i) 
  Benham, 
  W. 
  B. 
  — 
  1902. 
  On 
  a 
  new 
  Species 
  of 
  Earthworm 
  from 
  

   Norfolk 
  Island. 
  Trans. 
  & 
  Proc. 
  N.Z. 
  Inst. 
  xxxv. 
  

  

  (2) 
  Cognetti 
  de 
  Martiis, 
  L. 
  — 
  1905. 
  Sui 
  peptonefridi 
  degli 
  Oligo- 
  

  

  cheti. 
  Boll. 
  Mus. 
  Zool. 
  Anat. 
  Comp. 
  Torino, 
  xx. 
  

  

  (3) 
  Cognetti 
  be 
  Martiis, 
  L. 
  — 
  1908. 
  I 
  cosidetti 
  "peni" 
  dei 
  Crio- 
  

  

  drilini. 
  Atti 
  R. 
  Ace. 
  d. 
  Scienze 
  di 
  Torino, 
  xliii. 
  

  

  (4) 
  Fedarb, 
  S. 
  M. 
  — 
  1897. 
  On 
  some 
  Earthworms 
  from 
  India. 
  J, 
  

  

  Bombay 
  N. 
  H. 
  Soc. 
  xi. 
  

  

  (5) 
  Horst, 
  R— 
  1892. 
  Earthworms 
  from 
  the 
  Malay 
  Archipelago. 
  

  

  M. 
  Weber's 
  Zool. 
  Ergebn. 
  einer 
  Reise 
  in 
  Niederl. 
  Ost-Indien, 
  ii. 
  

  

  (6) 
  Michaelsen, 
  W.— 
  1897. 
  Oligochaeten. 
  Abh. 
  Senckenb. 
  Nat. 
  

  

  Ges. 
  Frankfurt-a.-M. 
  xxiii. 
  

  

  (7) 
  Michaelsen, 
  W.— 
  1900. 
  Oligochaeta. 
  Das 
  Tierreich, 
  Lief, 
  x. 
  

  

  