37 
The  gizzard  consists  of  two  divisions ,  separated  by  a  narrow  mem- 
branaceous interval. 
The  nephridia  in  the  posterior  region  of  the  body  are  arranged  in 
three  groups  of  delicate  tubules  on  each  side;  the  internal  of  them  is 
situated  near  the  dorsal  setae. 
The  penial  setae  of  our  species  much  resemble  those  of  B.  Bolavi  *), 
found  by  Mr.  Michaelsen  in  a  tannery  near  Hamburg.  Mr.  Michaelsen 
kindly  forwarded  me  some  individuals  of  this  species,  which  is  un- 
doubtedly imported  in  Germany.  B.  Bolavi  differs  from  B.  malayana, 
by  its  more  slender  habit,  its  segments  of  the  anterior  body-region 
having  all  the  same  longitudinal  diameter  and  by  its  incomplete  clitellum, 
wanting  the  glandular  modification  at  the  ventral  side;  it  has  not 
but  a  single  oviducal  pore,  surrounded  by  an  oval  wall,  of  which 
there  is  not  any  trace  in  our  species.  Michaelsen  states,  that  the 
spermathecae  of  B.  Bolavi  have  an  ellipsoidal  shape;  this  must  be  a 
slip  of  the  pen,  for  as  illustrated  by  fig.  14,  they  have  a  more  retort- 
like appearance  and  show  a  constriction  like  those  of  other  Benha- 
mm-species. 
Geoscolecidae. 
Glyphidrilus  n.  g. 2). 
Setae  of  the  common  shape,  arranged  in  four  series  of  couples.  Cli- 
tellum provided  with  a  folded,  crenulated  ridge  on  each  side.  Two 
pairs  of  testes  in  segments  X  and  XI;  vasa  deferentia  opening  in 
the  intersegmental  groove  of  segment  XXVII  and  XXVIII,  provided 
with  a  small  prostate-gland.  Ovaries  in  segment  XIII  ;  oviducal  pores 
upon  segment  XIV.  A  large  number  of  spermathecae,  more  than  one 
pair  in  each  segment. 
4.  Glyphidrilus  weberi  n.  sp. 
Java:  Buitenzorg,  in  humid  soil,  several  specimens. 
Sumatra:  Manindjau  and  lake  of  Singkarah,  dredged  at  great  depth. 
Flores:  Kotting. 
Celebes:  Luwu. 
The  length  of  the  largest  specimen  is  120  mm.;  the  number     .  , 
segments  amounts  to  about  250.  Most  individuals  are  Xf'  „  *  0  ^ 
 .  ^(mf  disco- 
1)  Jahrb.  der  Hamb.  Wissensch.  Anstalten,  VII,  1891.  ^ 
2)  Derived  from  y  yAt»4><ç  (fàoç),  notch  and  o  §p7*oc  ^f 
,j  ^rorro- 
