318 
Basal  lamina  very  wide  and  short. 
Coxœ  of  maxillary  feet  also  very  wide  and  short;  claw  of  maxil- 
lary feet  unarmed. 
Tergites  rugose,  not  bisulcate. 
Sternites  entire,  without  pores. 
Very  many  pleural  sclerites,  as  many  as  five  separating  the  stig- 
matiferous  sclerite  from  the  tergite. 
Anal  pleurœ  very  much  inflated ,  thickly  covered  with  minute  pores  ; 
anal  legs  composed  of  six  segments;  unarmed. 
Unfortunately  owing  to  scarcity  of  material  I  have  been  unable  to 
put  the  mouth  parts  to  an  anatomical  investigation  sufficient  to  record 
the  characters  they  present.  Jlowever,  the  palpi  of  the  third  pair  of 
jaws  in  this  second  specimen  are  not  contorted  as  they  are  in  the 
type  of  G.  cumingii.  The  character,  therefore,  is  not  generic  and  can 
only  cautiously  be  regarded  as  specific  considering  the  material  that 
has  been  examined. 
22.  Gonibregmatus  insularis,  n.  sp.  Pl.  XIX,  fig.  9 -9b. 
Island  of  Saleyer,  a  single  Ç  specimen. 
Length  97  mm.;  131  pairs  of  legs. 
Colour  a  uniform  testaceo-ochraceous  tint. 
Head-plate  about  as  long  as  wide,  with  nearly  straight  posterior 
border,  lightly  convex  lateral  borders  and  angulate  anterior  border; 
obsoletely  punctured. 
Antennae  thick,  with  subquadrate  segments;  shortly  and  feebly 
hirsute.  Basal-plate  wider  than  the  head-plate,  more  than  six  times 
as  wide  as  it  is  long;  prebasal  plate  visible;  l*t  tergite  slightly  wider 
than  the  basal  plate  and  much  wider  than  the  second  tergite. 
Maxillary  coxœ  entire,  wide,  about  three  times  as  wide  as 
long;  the  anterior  border  mesially  very  lightly  concave,  not  dentate; 
lateral  margin  reduced  to  a  minimum  by  the  convergence  on  each 
side  of  the  anterior  and  posterior  margins;  claw  of  the  maxillipede 
very  stout,  somewhat  triangular,  curved,  with  blunt  point;  the 
maxillary  feet  largely  overlapping  the  head-plate  at  the  sides  but  not 
in  front. 
Tergites  entire,  lightly  rugulose,  not  very  noticeably  impressed  at 
the  sides;  sternites  entire,  almost  smooth.  Anal-tergite  and  its  pre- 
scutum  fused,  very  much  compressed  by  the  anal  pleurœ;  anal  tergite 
