﻿TWO 
  NKW 
  rOKMS 
  OF 
  CHONIOSTOMATID.E. 
  349 
  

  

  third, 
  which 
  terminates 
  in 
  a 
  seta. 
  (In 
  the 
  specimen 
  dis- 
  

   sected 
  the 
  left 
  antenna: 
  had 
  been 
  lost, 
  while 
  the 
  right 
  one 
  is 
  

   shown 
  on 
  the 
  left 
  side 
  of 
  the 
  figure.) 
  The 
  mouth 
  is 
  good- 
  

   sized, 
  with 
  a 
  broad 
  border. 
  The 
  maxillula) 
  (d) 
  with 
  a 
  well- 
  

   developed" 
  additionalbranch" 
  {d}). 
  Themaxilla) 
  (e)are 
  large; 
  

   the 
  basal 
  joint 
  is 
  robust 
  and 
  long, 
  with 
  a 
  rounded 
  protuber- 
  

   ance 
  on 
  the 
  lower 
  side, 
  a 
  little 
  from 
  the 
  base 
  and 
  from 
  the 
  

   outer 
  side, 
  but 
  without 
  hairs, 
  excepting 
  the 
  usual 
  row 
  along 
  

   the 
  distal 
  margin. 
  The 
  maxillipeds 
  (/) 
  are 
  long; 
  the 
  basal 
  

   joint 
  moderately 
  robust 
  without 
  hairs; 
  the 
  three 
  other 
  joints 
  

   are 
  well 
  marked 
  off 
  from 
  each 
  other 
  ; 
  the 
  terminal 
  one 
  is 
  

   slender, 
  and 
  terminates 
  in 
  a 
  few 
  exceedingly 
  fine, 
  spiniform 
  

   processes. 
  The 
  submedian 
  skeleton 
  presents 
  two 
  pairs 
  of 
  

   conspicuous 
  chitinous 
  strips; 
  each 
  of 
  these 
  is 
  sinuate, 
  and, 
  

   besides, 
  anteriorly 
  bent 
  very 
  sharply 
  in 
  an 
  acute 
  angle, 
  thus 
  

   forming 
  an 
  outer 
  short 
  strip 
  turning 
  outwards 
  and 
  backwards; 
  

   the 
  subtriangular 
  space 
  between 
  the 
  outer 
  set 
  of 
  these 
  strips, 
  

   situated 
  near 
  the 
  posterior 
  admedian 
  angle 
  of 
  the 
  maxillee, 
  is 
  

   adorned 
  with 
  very 
  long 
  hairs, 
  and 
  some 
  moderately 
  long 
  

   hairs 
  are 
  also 
  found 
  at 
  the 
  posterior 
  margin 
  of 
  the 
  maxillas. 
  

   Behind 
  the 
  maxillipeds 
  two 
  transverse 
  strips 
  are 
  seen 
  ; 
  rather 
  

   near 
  the 
  middle 
  the 
  strips 
  on 
  the 
  same 
  half 
  of 
  the 
  animal 
  run 
  

   together, 
  forming 
  a 
  single 
  strip 
  which 
  bends 
  backwards 
  and 
  

   inwards, 
  uniting 
  itself 
  in 
  the 
  middle 
  line 
  with 
  the 
  correspond- 
  

   ing 
  one 
  from 
  the 
  other 
  half 
  ; 
  the 
  front 
  one 
  of 
  these 
  trans- 
  

   verse 
  strips 
  is 
  adorned 
  with 
  some 
  long 
  hairs, 
  and 
  close 
  to 
  the 
  

   posterior 
  strip 
  or 
  a 
  little 
  removed 
  from 
  it 
  some 
  similar 
  hairs 
  

   are 
  seen, 
  Tlie 
  lateral 
  margin 
  of 
  the 
  head 
  with 
  a 
  fringe 
  of 
  

   moderately 
  long 
  hairs. 
  On 
  the 
  dorsal 
  surface, 
  a 
  little 
  behind 
  

   the 
  frontal 
  margin, 
  a 
  rather 
  small, 
  oblong, 
  transverse 
  area, 
  set 
  

   with 
  numerous 
  very 
  short 
  hairs, 
  is 
  seen 
  about 
  equidistant 
  

   from 
  the 
  middle 
  line, 
  and 
  from 
  the 
  base 
  of 
  the 
  antennula. 
  

   The 
  trunk 
  is 
  on 
  the 
  anterior 
  half, 
  and 
  especially 
  on 
  the 
  an- 
  

   terior 
  third, 
  set 
  with 
  a 
  good 
  number 
  of 
  rather 
  conspicuous, 
  

   simple, 
  stiff 
  hairs 
  ; 
  on 
  the 
  posterior 
  half 
  these 
  hairs 
  are 
  much 
  

   less 
  numerous, 
  shorter, 
  and 
  not 
  easily 
  observed 
  ; 
  the 
  trunk- 
  

   legs 
  are 
  exceedingly 
  small, 
  but 
  one 
  of 
  each 
  pair 
  was 
  found. 
  

  

  