﻿[53] 
  

  

  DECAPODA 
  FROM 
  ALBATROSS 
  DREDGINGS. 
  

  

  657 
  

  

  The 
  sculpturing 
  of 
  the 
  abdomen 
  resembles 
  that 
  of 
  G. 
  sculptus, 
  but 
  the 
  

   dorsal 
  carina 
  is 
  less 
  prominent 
  and 
  more 
  obtuse, 
  and 
  the 
  tubercles 
  are 
  

   fewer 
  in 
  number, 
  obtuse, 
  and 
  punctate. 
  The 
  marginal 
  spines 
  of 
  the 
  

   pleura 
  of 
  the 
  second 
  to 
  the 
  fifth 
  somite 
  are 
  all 
  short, 
  and 
  there 
  is 
  

   usually 
  no 
  posterior 
  spine 
  on 
  the 
  fifth. 
  The 
  lateral 
  spines 
  of 
  the 
  sixth 
  

   somite 
  are 
  about 
  as 
  prominent 
  and 
  fully 
  as 
  stout 
  as 
  in 
  G. 
  sculptus. 
  

  

  The 
  telson 
  is 
  shorter 
  than 
  in 
  the 
  young 
  specimen 
  originally 
  described, 
  

   being 
  considerably 
  shorter 
  than 
  the 
  carapax 
  exclusive 
  of 
  the 
  rostrum, 
  

   and 
  has 
  nearly 
  the 
  same 
  form 
  and 
  -sculpturing 
  as 
  in 
  G. 
  sculptus, 
  though 
  

   the 
  tip 
  is 
  slightly 
  more 
  upturned 
  and 
  the 
  carinas 
  smoother 
  toward 
  the 
  

   base. 
  The 
  outer 
  lamella 
  of 
  the 
  uropod 
  is 
  only 
  about 
  three-fourths 
  as 
  

   long 
  as 
  ihe 
  telson, 
  rather 
  more 
  than 
  a 
  third 
  as 
  broad 
  as 
  long, 
  with 
  the 
  

   lateral 
  spine 
  farther 
  from 
  the 
  tip 
  than 
  in 
  the 
  other 
  species. 
  The 
  inner 
  

   lamella 
  is 
  narrow 
  and 
  usually 
  longer 
  than 
  the 
  outer. 
  The 
  uropodal 
  

   lamellae 
  are, 
  however, 
  occasionally 
  subject 
  to 
  considerable 
  variation, 
  as 
  

   shown 
  in 
  the 
  first 
  column 
  of 
  the 
  accompanying 
  table 
  of 
  measurements. 
  

   There 
  is 
  no 
  appearance 
  of 
  injury 
  or 
  redevelopment 
  in 
  the 
  uropods 
  of 
  

   the 
  specimen 
  from 
  which 
  these 
  measurements 
  were 
  taken, 
  although 
  the 
  

   abnormal 
  variation 
  is 
  very 
  likely 
  due 
  to 
  some 
  such 
  cause. 
  

  

  A 
  female 
  104 
  mm 
  long, 
  taken, 
  1885, 
  at 
  station 
  2550, 
  was 
  carrying 
  80 
  

   eggs, 
  2.8 
  by 
  3.1 
  mm 
  in 
  shorter 
  and 
  longer 
  diameter, 
  and 
  the 
  entire 
  num- 
  

   ber 
  were 
  equal 
  to 
  a 
  little 
  more 
  than 
  a 
  tenth 
  of 
  the 
  bulk 
  of 
  the 
  entire 
  

   animal, 
  exclusive 
  of 
  the 
  eggs. 
  

  

  Measurements 
  in 
  millimeters. 
  

  

  Catalogue 
  number 
  

  

  Station 
  - 
  

  

  Sex 
  

  

  Length 
  from 
  tip 
  of 
  rostrum 
  to 
  tip 
  of 
  telson 
  .. 
  

  

  Length 
  of 
  carapax, 
  including 
  rostrum 
  

  

  Length 
  of 
  rostrum 
  

  

  Breadth 
  of 
  carapax 
  in 
  front, 
  including 
  spines 
  

  

  Breadth 
  of 
  carapax 
  at 
  cervical 
  suture 
  

  

  Breadth 
  of 
  carapax 
  back 
  of 
  cervical 
  suture 
  .. 
  

  

  Length 
  of 
  eye-stalk 
  and 
  eye 
  

  

  Greatest 
  diameter 
  of 
  eye 
  

  

  Length 
  of 
  antenna! 
  scale 
  

  

  Breadth 
  of 
  antenna! 
  scale 
  

  

  Length 
  of 
  second 
  guathopod 
  

  

  Length 
  of 
  lirst 
  peneopod 
  

  

  Length 
  of 
  morns 
  

  

  Length 
  of 
  carpus 
  

  

  Length 
  of 
  propodns 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  second 
  peraeopod 
  

  

  Length 
  of 
  rooms 
  

  

  Length 
  of 
  carpus 
  

  

  Length 
  of 
  chela 
  

  

  Length 
  of 
  third 
  peraeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  ' 
  

  

  Length 
  of 
  fifth'perfeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  sixth 
  somite 
  of 
  pleon 
  , 
  

  

  Length 
  of 
  telson 
  

  

  Length 
  of 
  inner 
  lamella 
  of 
  uropod 
  

  

  Breadth 
  of 
  inner 
  lamella 
  of 
  uropod 
  

  

  Length 
  of 
  outer 
  lamella 
  of 
  uropod 
  

  

  Lroadth 
  of 
  outer 
  lamella 
  of 
  uropod 
  

  

  ~S7 
  Mis770 
  42~~ 
  

  

  8257 
  

   2200 
  

  

  41. 
  

   19. 
  

   20. 
  

   13. 
  

   16. 
  

  

  5. 
  

  

  5. 
  

  

  8. 
  

  

  5. 
  

   22 
  

   21 
  

  

  8.2 
  

  

  2. 
  

   4. 
  

   2. 
  

   right. 
  

   29 
  

   5.3 
  

   13.5 
  

   1.2 
  

   35 
  

  

  2. 
  

  

  8. 
  

  

  17. 
  

  

  right. 
  

  

  13.3 
  

  

  2.9 
  

  

  12.0 
  

  

  4.8 
  

  

  1 
  

   5 
  

   left. 
  

  

  28 
  

  

  5.4 
  

   12.0 
  

  

  1.5 
  

  

  .5 
  

   .5 
  

  

  .0 
  

   3 
  

   

   5 
  

  

  left. 
  

   11.3 
  

  

  2.8 
  

   13.6 
  

  

  4.7 
  

  

  8257 
  

   2206 
  

  

  <s 
  

  

  101 
  

  

  5.8 
  

   5.7 
  

  

  18.3 
  

   right, 
  left. 
  

   13.6 
  

   3.0 
  

   13.0 
  

   4.7 
  

  

  13.6 
  

   3.0 
  

  

  13.0 
  

   4.7 
  

  

  8256 
  

   2205 
  

  

  ? 
  

   107 
  

   43.4 
  

   18.0 
  

   20.0 
  

   15.0 
  

   18.6 
  

  

  5.5 
  

  

  5.8 
  

   11.0 
  

  

  6.5 
  

   23 
  

   22 
  

  

  8.8 
  

  

  2.1 
  

  

  4.6 
  

  

  2.8 
  

   right, 
  left. 
  

  

  32 
  

  

  5.5 
  

   14.5 
  

  

  1.6 
  

  

  33 
  

   5.5 
  

   15.0 
  

   1.3 
  

   35 
  

   8.2 
  

   2.6 
  

   36 
  

   8.4 
  

  

  9.0 
  

  

  20.0 
  

   right, 
  left 
  

   14.5 
  

   3.5 
  

   14.0 
  

   5.8 
  

  

  14.6 
  

   3.5 
  

  

  14.0 
  

   5.7 
  

  

  