﻿256 
  Dr. 
  L. 
  Coguetti 
  de 
  Martlis 
  on 
  

  

  Setfe 
  arranged 
  in 
  continuous 
  rings 
  : 
  32/ii., 
  35/iii., 
  4(i/vi., 
  

   fi5/x., 
  70/xiii., 
  70/xxii. 
  ; 
  tliere 
  are 
  no 
  dorsal 
  and 
  ventral 
  gaj)s. 
  

   The 
  setae 
  of 
  the 
  anterior 
  and 
  caudal 
  segments 
  are 
  slightly 
  

   stronger. 
  

  

  First 
  dorsal 
  pore 
  in 
  intersegmental 
  furrow 
  xii./xiii. 
  

  

  Clitellum 
  embracing 
  segments 
  xiv.-xvi.j 
  unprovided 
  with 
  

   intersegmental 
  furrows. 
  The 
  seta3 
  are 
  wanting 
  on 
  the 
  

   clitellum. 
  

  

  Male 
  pores 
  in 
  the 
  ring 
  of 
  setae 
  of 
  the 
  xviii. 
  segment 
  ; 
  

   between 
  the 
  male 
  pores 
  the 
  setse 
  are 
  wanting. 
  On 
  segments 
  

   xvii. 
  or 
  xix. 
  there 
  are 
  about 
  seven 
  setiE 
  between 
  the 
  lines 
  

   of 
  male 
  pores. 
  The 
  distance 
  between 
  tiie 
  lines 
  of 
  male 
  pores 
  

   corresponds 
  to 
  j- 
  of 
  the 
  segment 
  circumference. 
  

  

  Paired 
  papillae 
  are 
  present 
  on 
  segments 
  xix. 
  and 
  xx., 
  

   one 
  pair 
  for 
  each 
  segment, 
  close 
  to 
  the 
  middle 
  ventral 
  line, 
  

   behind 
  the 
  ring 
  of 
  setse. 
  A 
  third 
  pair 
  of 
  papillai, 
  or 
  a 
  single 
  

   lateral 
  papilla, 
  may 
  be 
  present 
  in 
  the 
  same 
  position 
  on 
  the 
  

   xxi. 
  segment. 
  In 
  one 
  specimen 
  a 
  pair 
  of 
  papillas 
  is 
  present 
  

   on 
  the 
  viii. 
  segment, 
  in 
  front 
  of 
  the 
  ring 
  of 
  seta3, 
  and 
  about 
  

   in 
  the 
  same 
  lines 
  with 
  the 
  papillce 
  above 
  mentioned. 
  

  

  On 
  the 
  xix. 
  and 
  xx. 
  segments 
  there 
  is 
  also 
  present 
  a 
  pair 
  

   of 
  papillae, 
  or 
  a 
  single 
  lateral 
  papilla, 
  behind 
  the 
  ring 
  of 
  

   setaj 
  ; 
  these 
  papilla3 
  are 
  disposed 
  laterally 
  to 
  the 
  lines 
  of 
  the 
  

   male 
  pores. 
  The 
  distance 
  between 
  the 
  lateral 
  papillas 
  of 
  

   each 
  pair 
  corresponds 
  to 
  about 
  ^ 
  of 
  the 
  segmental 
  circum- 
  

   ference. 
  

  

  Female 
  pore 
  on 
  the 
  xiv. 
  segment, 
  in 
  a 
  little 
  grey 
  area 
  

   surrounded 
  by 
  a 
  white 
  ring. 
  Spermathecal 
  apertures 
  in 
  

   intersegmental 
  furrows 
  vii./viii. 
  and 
  viii./ix., 
  about 
  in 
  the 
  

   same 
  lines 
  with 
  the 
  male 
  pores, 
  slightly 
  closer 
  ventrally. 
  

  

  Internal 
  anatomy. 
  — 
  Septa 
  iv./v.-vii./viii. 
  are 
  moderately 
  

   thickened; 
  gizzard 
  septa 
  viii./ix. 
  and 
  ix./x. 
  are 
  wanting. 
  

   Gizzard 
  very 
  strong, 
  just 
  behind 
  septum 
  vii./viii. 
  The 
  

   sacculated 
  intestine 
  begins 
  in 
  the 
  xv. 
  segment, 
  and 
  is 
  

   provided 
  at 
  the 
  xxvi. 
  segment 
  with 
  a 
  pair 
  of 
  caeca 
  which 
  

   extend 
  forward 
  through 
  four 
  segments. 
  The 
  caeca 
  are 
  

   sim])le 
  in 
  structure. 
  Hearts 
  paired 
  in 
  segments 
  x.— 
  xiii. 
  

  

  The 
  s])erm-eapsules 
  in 
  segments 
  x. 
  and 
  xi. 
  are 
  ventral 
  

   to 
  the 
  oesophagus 
  ; 
  those 
  of 
  tliesame 
  segment 
  do 
  not 
  seem 
  to 
  

   communicate 
  with 
  each 
  other, 
  but 
  the 
  capsides 
  of 
  the 
  x. 
  

   communicate 
  with 
  those 
  of 
  the 
  following 
  segment 
  through 
  

   Septum 
  x./xi. 
  Sperm-sacs 
  paired 
  in 
  xi. 
  and 
  xii. 
  segments. 
  

  

  The 
  spermiducal 
  glands 
  are 
  rather 
  large, 
  and 
  extend 
  

   through 
  segments 
  xvii. 
  and 
  xviii. 
  Each 
  oland 
  is 
  a 
  white 
  

   renifurm 
  body, 
  compressed 
  between 
  tlie 
  body-wall 
  and 
  the 
  

  

  