93 
them  granular,  the  keels  much  more  closely  so  than  the  spaces,  the 
inner  edge  of  the  manus  sub-denticulate ,  the  anterior  surface  furnished 
with  two  weakly  granular  keels,  the  total  number  of  keels  or  ridges 
on  the  manus  amounts  to  nine  ;  digiti  curved ,  the  movable  longer  than 
the  hand-back.  Chelicerae  with  the  movable  dactylus  armed  above 
with  three  teeth  (the  first  small)  and  the  terminal  fang,  below  with  a 
series  of  small  subequal  teeth  and  the  terminal  fang;  the  immovable 
armed  below  with  a  series  of  small ,  subequal  teeth ,  and  above  with 
two  teeth,  of  which  the  posterior  is  bifid,  and  the  terminal  fang. 
Legs  nearly  smooth;  claws  free,  distal  tibial  segment  longer  than 
the  proximal. 
Sternum  longer  than  wide;  genital  plates  separated. 
Pectines  short,  with  4  —  4,  6  —  7  teeth,  the  apical  of  which  is  in- 
flated, the  proximal  fulcrum  the  largest,  the  shaft  composed  of  two 
segments,  whereof  the  distal  is  very  small. 
Measurements  in  millimeters.  Total  length  29  ;  céphalothorax,  length 
4.3,  width  4;  tail,  total  length  15.3,  length  of  1st  segm.  1.8,  of 
2,  of  3**  2.2,  of  4f-h  2.4,  of  5th  3,7,  0f  vesicle  and  aculeus  4.2; 
width  of  I**  2.2,  of  2^  2,  of  5th  1.6,  of  vesicle  1,6;  height  of  5th 
1.5,  of  vesicle  1.6:  humerus,  length  3.4,  width  1.5 ;  brachium,  length 
3.5,  width  1.7;  manus,  length  4,  width  2.8,  length  of  hand-back  3.6 , 
of  movable  digit  4.4. 
This  species,  may  be  immediately  recognised  from  the  preceding, 
Ch.  variegatus,  by  its  much  narrower  hand.  In  C.  variegatus  as  may 
be  seen  by  the  table  of  measurements  the  length  of  the  „hand-back" 
is,  less  than  the  width  of  the  hand. 
In  Ch.  borneensis,  Simon,  which  is  unknown  to  me,  the  manus  is 
even  wider  than  in  variegatus. 
This  new  species  then,  appears  to  come  nearest  to  Ch.  truncatus 
of  Karsch,  in  the  form  of  the  hand.  This  species  also  is  unknown 
to  me ,  but  it  appears  to  differ  from  Ch.  cavernicola  in  many  particulars , 
such  as  the  keeling  of  the  tail,  the  length  of  the  3rd  and  4th  segments 
of  this  organ  as  compared  to  the  5th,  the  length  of  the  „hand-back" 
as  compared  with  the  movable  digit  etc. 
7.  Chaerilus  celebensis.  sp.  n. 
A  single  small,  probably  immature,  specimen  from  Lu wu  in  Celebes. 
