397 
94.  Trigoniulus  megaïoproctus ,  sp.  n.  Pl.  XXII,  flg.  28. 
Flores:  Maumerie. 
Colour;  somites  pale  in  front,  black  in  the  middle,  ferruginous 
posteriorly;  head,  first  tergite,  anal  valves  and  tergite  fuscous,  an- 
tennae fusco-annulate ,  legs  ochraceous. 
Head  smooth,  marked  throughout  by  a  faint  vertical  sulcus,  which 
is  stronger  below;  four  pores  on  the  labrum.  Antennae  short,  only 
about  as  long  as  the  head.  Eyes  widely  separated,  the  distance  be- 
tween them  equal  to  about  twice  a  diameter. 
First  tergite  with  its  posterior  border  laterally  nearly  straight,  the 
corresponding  portion  of  the  anterior  border  very  lightly  concave  and 
defined  by  a  distinct  sulcus,  the  angle  acute,  rounded,  and  extending 
almost  as  low  as  the  inferior  extension  of  the  second.  The  rest  of 
the  somites  longitudinally  striate  about  half  way  up  to  the  pore;  the 
upper  surface  finely  striolate,  striolse  running  obliquely  backwards 
and  outwards  from  the  middle  dorsal  line  and  more  or  less  breaking 
up  into  punctulation  posteriorly  ;  only  the  extreme  hind  border  smooth  ; 
the  transverse  sulcus  visible  laterally  as  high  as  the  pore;  obsolete 
above.  The  pores  just  above  the  middle  of  the  side,  immediately  in 
front  of  the  sulcus,  the  anterior  one  a  little  the  lowest.  Anal  somite 
rugulose,  large,  its  upper  surface  convex  from  behind  forwards,  with 
a  strong  constriction  before  the  angle  which  covers  the  apex  of  the 
valves  without  extending  beyond  them;  valves  convex  with  margins 
scarcely  compressed;  sternite  not  angled  posteriorly,  its  hinder  mar- 
gin straight. 
Legs  with  a  single  seta  below  each  segment. 
cf  With  tarsi  padded.  Copulatory  feet  with  the  anterior  piece  long, 
with  two  long  upper  arms,  the  angle  extending  interiorly  as  low  as 
the  inferior  angle  of  the  anterior  lateral  piece,  beneath  which  the 
posterior  lateral  projects. 
Number  of  somites  about  49. 
Length  up  to  about  55  mm.;  width  about  5. 
This  species  is  perhaps  allied  to  decoratus  of  Karsch  from  Viti 
Levu;  but  the  last  it  described  as  having  the  somites  deeply  segmented. 
95.  Trigoniulus  tachypus,  sp.  n.  Pl.  XXII,  fig.  29. 
Island  of  Saleyer.  (Two  male  specimens). 
Colour ,  somites  olivaceo-fuscous  ;  head  fuscous  above  ,  ochraceous  be- 
26 
