65 
Concerning  the  internal  anatomy  can  be  stated,  that  the 
first  septum  is  situated  between  segment  V  and  VI  ;  this  and  the  two 
succeeding  dissepiments  are  specially  thickened  and  connected  with 
each  other  by  numerous  muscle-fascicles.  The  8th  and  9th  septum 
are  absent;  the  10th,  11th,  12th  and  13th  are  however  rather 
thick. 
The  pharynx  reaches  till  segment  IV;  it  is  entirely  covered  with 
glands  and  muscular  fibres,  radiating  in  all  directions  to  the  body- 
wall.  Next  to  it  follows  the  oesophagus,  which  extends  as  far  as  the 
posterior  septum  of  segment  VII.  In  segment  V  and  VI  there  occur 
on  each  side  of  the  oesophagus  large  groups  of  spirally  coiled  glan- 
dular tubes  (Perrier  mentions  them  also  of  segment  VII);  in  both 
segments  I  found  also  on  each  side  of  the  dorsal  vessel,  situated 
around  a  muscular  band,  connecting  the  anterior  and  the  posterior 
septum  of  the  relative  segments,  a  conical  glandular  body,  the  so- 
called  „ blood-gland"  of  Beddard. 
The  segments  VIII— X  are  occupied  by  the  gizzard,  which  is  some- 
what barrel-shaped;  on  its  dorsal  side,  nearly  at  two  thirds  of  its 
length  a  row  of  longitudinal  muscles  are  inserted,  which  pass  back- 
wards to  the  next  septum  and  undoubtedly  act  as  retractors  of  the 
intestinal  canal.  The  tubular  intestine  has  its  wall  glandularly  thickened 
in  segments  XI— XIV;  the  sacculated  intestine  commences  in  segment 
XV,  and  is  in  segment  XXVI  provided  with  a  pair  of  long  coeca, 
extending  forwards  till  the  prostate. 
The  shape  of  the  spermathecae,  situated  in  segment  VII ,  VIII  and 
IX,  very  well  agrees  with  the  drawing  ')  published  by  Perrier  ;  afterwards 
they  have  been  figured  also  by  Bourne  2)  and  Beddard  3).  Each  spermatheca 
consists  of  (1)  a  long ,  tongue-shaped  pouch ,  with  short  duct ,  (2)  a  tubular 
diverticulum  coiled  in  a  zigzag  line ,  nearly  half  as  long  as  the  pouch, 
and  (3)  a  small  long-stalked  globular  body.  In  the  present  examples  I 
found  that  the  first  pair  of  spermathecae  possesses  only  one  globular 
body,  but  the  two  other  pairs  have  a  greater  number  of  them,  viz.  3, 
4  or  5.  Perrier  only  mentions  a  single  „poche  glandulaire  bilobée," 
as  also  figured  by  Bourne;  Beddard  however  sometimes  found  a  pair 
1)  Nouv.  Arch.  Museum  T.  VIII,  PL  III,  fig.  58. 
2)  Journ.  Asiat.  Society.  T.  LV1I1,  pl.  Ill,  fig.  5. 
3)  Quartl.  Jouru.  Microsc.  Science,  Vol.  XXX,  1890,  Pl.  XXIX,  fig.  6. 
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