﻿318 
  COLLECTIONS 
  FROM 
  MELANESIA, 
  

  

  long 
  joints, 
  and 
  is 
  tipped 
  with 
  a 
  pencil 
  of 
  hairs. 
  The 
  inferior 
  an- 
  

   tennae 
  slightly 
  exceed 
  in 
  length 
  the 
  head 
  and 
  first 
  five 
  segments 
  of 
  

   the 
  body 
  ; 
  the 
  basal 
  pednncular 
  joint 
  is 
  very 
  short, 
  the 
  second 
  is 
  

   slightly 
  longer 
  than 
  the 
  third 
  joint. 
  The 
  first 
  legs 
  (gnathopoda) 
  

   are 
  very 
  slender 
  and 
  feeble 
  ; 
  the 
  merus 
  short, 
  unarmed 
  ; 
  the 
  carpus, 
  

   like 
  the 
  propus, 
  convexly 
  arcuated 
  posteriorly 
  and 
  fringed 
  vrith 
  

   hairs 
  ; 
  dactyl 
  rather 
  less 
  than 
  half 
  the 
  length 
  of 
  the 
  propus. 
  The 
  

   second 
  legs 
  have 
  the 
  small 
  and 
  slender 
  merus 
  armed 
  with 
  a 
  posterior 
  

   spine 
  ; 
  the 
  carpus 
  very 
  short, 
  transverse, 
  and 
  equalling 
  the 
  proximal 
  

   end 
  of 
  the 
  propus 
  or 
  palm 
  in 
  width 
  ; 
  the 
  palms, 
  in 
  three 
  specimens 
  

   examined, 
  are 
  large, 
  similar, 
  and 
  subequal, 
  longer 
  than 
  broad, 
  

   rounded 
  at 
  base, 
  very 
  slightly 
  broader 
  at 
  the 
  distal 
  extremity 
  ; 
  the 
  

   distal 
  margin, 
  against 
  which 
  the 
  strong 
  arcuate 
  dactyl 
  closes, 
  has 
  a 
  

   wide 
  shallow 
  notch 
  above 
  the 
  postero-distal 
  angle 
  of 
  the 
  palm, 
  and 
  

   above 
  this 
  three 
  or 
  four 
  very 
  obscure 
  indications 
  of 
  teeth 
  ; 
  the 
  

   infero-distal 
  angle 
  is 
  not 
  defined 
  by 
  a 
  tooth 
  or 
  spine. 
  The 
  third 
  and 
  

   fourth 
  legs 
  are 
  very 
  slender, 
  with 
  the 
  dactyli 
  about 
  as 
  long 
  as 
  the 
  

   preceding 
  joints 
  ; 
  the 
  three 
  posterior 
  legs 
  are 
  robust, 
  with 
  the 
  basus- 
  

   joints 
  posteriorly 
  serrated 
  ; 
  the 
  fourth 
  to 
  sixth 
  joints 
  margined 
  with 
  

   long 
  hairs 
  ; 
  the 
  merus-joints 
  widening 
  to 
  the 
  distal 
  margin, 
  which 
  is 
  

   pi'olonged 
  into 
  an 
  anterior 
  and 
  posterior 
  spine, 
  the 
  posterior 
  spine 
  

   being 
  very 
  large 
  ; 
  dactyli 
  less 
  than 
  half 
  the 
  length 
  of 
  the 
  preceding 
  

   joints. 
  The 
  fourth 
  and 
  fifth 
  pairs 
  of 
  uropoda 
  have 
  the 
  slender 
  rami 
  

   margined 
  with 
  short 
  stiff 
  hairs 
  ; 
  the 
  sixth 
  pair 
  have 
  the 
  rami 
  sub- 
  

   foliaceous, 
  rather 
  narrow-ovate 
  and 
  not 
  greatly 
  elongated. 
  Colour 
  

   (in 
  spirit) 
  light 
  brownish 
  pink. 
  Length 
  (without 
  antennae) 
  a 
  little 
  

   over 
  4 
  lines 
  (9 
  millim.). 
  

  

  Two 
  specimens 
  are 
  in 
  the 
  collection 
  from 
  Albany 
  Island, 
  3-4 
  fms., 
  

   and 
  two 
  from 
  Port 
  Denison, 
  4 
  fms. 
  (jSTo. 
  122). 
  

  

  In 
  the 
  dorsally 
  bispinose 
  postabdominal 
  segments 
  this 
  species 
  

   resembles 
  McgcmKvra 
  diemeiiensis, 
  Haswell, 
  from 
  Tasmania, 
  but 
  difi"ers 
  

   from 
  this 
  and 
  all 
  of 
  the 
  other 
  Australian 
  species 
  of 
  Moera 
  and 
  Mega- 
  

   mcera 
  described 
  by 
  that 
  author 
  (as 
  it 
  appears) 
  in 
  the 
  form 
  of 
  the 
  

   palms 
  of 
  the 
  second 
  legs, 
  not 
  to 
  speak 
  of 
  other 
  characters. 
  If 
  our 
  

   specimens 
  should 
  prove 
  to 
  be 
  distinct 
  from 
  Megamoera 
  suensis, 
  

   which 
  is 
  only 
  known 
  to 
  me 
  by 
  Mr. 
  Haswell's 
  very 
  short 
  diagnosis, 
  

   I 
  would 
  propose 
  to 
  designate 
  them 
  ill. 
  hasweUi. 
  

  

  Mr. 
  Thomson* 
  has 
  recently 
  described 
  a 
  species, 
  Megamoera 
  fascicu- 
  

   lata, 
  from 
  Dunedin 
  Harbour 
  and 
  Christchurch, 
  New 
  Zealand, 
  which 
  

   is 
  distinguished 
  from 
  both 
  this 
  and 
  the 
  following 
  species 
  by 
  the 
  

   non-emarginate 
  unarmed 
  palms 
  of 
  the 
  first 
  and 
  second 
  legs, 
  the 
  first 
  

   pair 
  being 
  " 
  quite 
  transverse," 
  <S:c. 
  

  

  8. 
  Megamoera 
  thomsoni. 
  (Plate 
  XXXIV. 
  fig. 
  B.) 
  

  

  This 
  species 
  is 
  allied 
  to 
  the 
  foregoing 
  ; 
  but 
  the 
  body 
  is 
  somewhat 
  

   slenderer 
  ; 
  the 
  posterior 
  and 
  dorsal 
  margins 
  of 
  the 
  thoracic 
  and 
  

   postabdominal 
  segments 
  are 
  all 
  of 
  them 
  entire, 
  without 
  spines 
  or 
  

  

  * 
  Ann. 
  & 
  Mag. 
  Nat. 
  Hist. 
  ser. 
  5, 
  vi. 
  p. 
  5, 
  pi. 
  i. 
  fig. 
  5 
  (1880). 
  

  

  