320 
Dr.  Max  Weber's  collection.  But  only  those  who  are  familiar  with  the 
vast  number  of  species  of  millipedes  that  abound  in  the  tropics,  with 
the  narrowness  of  the  range  of  each,  with  the  worthlessness  of  most 
of  the  existing  descriptions  and  with  the  dearth  of  good  figures ,  will 
be  able  to  understand  the  necessity  for  describing  such  a  host  of  new 
species  as  are  established  in  the  following  pages. 
That  all  the  species,  however,  will  ultimately  prove  to  be  new,  is 
what  I  scarcely  expect.  Nevertheless  I  shall  feel  well  satisfied  if  the 
descriptions  and  figures  that  are  here  published  are  sufficiently  exact 
to  enable  others  to  discover  which  of  the  species  have  been  previously 
described  by  my  predecessors. 
While  describing  Dr.  Max  Weber's  Celebes  species,  I  have  taken 
the  opportunity  of  adding  diagnoses  of  two  interesting  forms  that 
were  brought  from  this  island  by  Dr.  S.  J.  Hickson. 
II.  List  of  the  Localities  with  the  species  that 
were  obtained  at  each. 
Sumatra. 
Mount  Singalang:  Glomeris  infuscatus  ;  Glomeridesmus  sumatranus  : 
Siphonocryptus  compadus;  Heteroclwrdeuma  monticola;  Platyrhacus 
monticola. 
Ajer  Mantjur:  Sphœropœus  hercules;  Platyrhacus  mirandus;  P.  lati- 
collis;  P.  weberi. 
Fort  de  Kock:  Strongylosoma  coarctation;  Gambala  calva. 
Pajakombo:  (Ngalau  cavern).  Cambala  caver  nicola. 
Singkarah:  Glomeris  albicornis ;  Sphœropœus  hercules;  Strongylosoma 
semicarneum;  Str.  coar datum;  Cryptodesmus  bicolor ;  Spirostreptus 
xanthurus;  Trigoniulus  goësi. 
Manindjau:  Sphœropœus  hercules;  Siphoniulus  albus;  Platyrhacus  mi- 
randus; P.  laticollis;  P.  xanthopus  ;  P.  submissus  ;  P.  inaequidens  ; 
Strongylosoma  carneum;  S.  semicarneum  ;  S.  nigricorne;  S.  subnig- 
rum;  S.  coarctatum;  Centrodesmus  typicus  ;  Cryptodesmus  sumatra- 
nus; Spirostreptus  erythropleurus  ;  Sp.  pachyurus  ;  Trigoniulus  goësi. 
Padang  :  Sphœropœus  hercules  ;  Strongylosoma  carneum  ;  S.  coarctatum  ; 
Spirostreptus  rubro-limbatus ;  Trigoniulus  goësi;  Spirobolellus  chry- 
sodirus. 
Alahan  Pandjang.  Spirostreptus  weberi. 
Paningahan:  Sphœropœus  hercules;  Sphœropœus  gladiator  ;  Platyrhacus 
