﻿690 
  

  

  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  [86] 
  

  

  the 
  entire 
  length, 
  and 
  the 
  spiniform 
  lateral 
  process 
  reaches 
  to 
  about 
  the 
  

   extremity 
  of 
  the 
  segment 
  itself, 
  which, 
  however, 
  is 
  armed 
  with 
  a 
  slen- 
  

   der 
  spine 
  just 
  outside 
  the 
  base 
  of 
  the 
  second 
  segment; 
  the 
  second 
  seg- 
  

   ment 
  is 
  about 
  twice 
  as 
  long 
  as 
  the 
  distal. 
  The 
  flagella 
  are 
  almost 
  ex- 
  

   actly 
  as 
  in 
  Aristeus 
  f 
  tridens. 
  The 
  antenna! 
  scale 
  is 
  about 
  three-fourths 
  

   as 
  long 
  as 
  the 
  carapax 
  excluding 
  the 
  rostrum, 
  half 
  as 
  broad 
  or 
  a 
  little 
  

   less 
  thau 
  half 
  as 
  broad 
  as 
  long, 
  and 
  in 
  form 
  and 
  texture 
  like 
  that 
  of 
  

   Aristeus 
  ? 
  tridens. 
  

  

  The 
  sixth 
  somite 
  of 
  the 
  pleon 
  is 
  about 
  half 
  as 
  high 
  as 
  long. 
  The 
  tel- 
  

   son 
  is 
  nearly 
  or 
  quite 
  as 
  long 
  as 
  the 
  sixth 
  somite, 
  regularly 
  tapered, 
  

   slightly 
  flattened 
  above, 
  armed 
  with 
  small 
  dorso-marginal 
  aculei, 
  and 
  

   terminates 
  in 
  an 
  acuminate 
  tip 
  armed 
  with 
  slender 
  setae. 
  

  

  A 
  female 
  taken 
  in 
  1885, 
  station 
  2563, 
  north 
  lat. 
  39° 
  18' 
  30", 
  west 
  

   long. 
  71° 
  23' 
  30", 
  1,422 
  fathoms, 
  is 
  much 
  larger 
  than 
  any 
  of 
  the 
  speci- 
  

   mens 
  previously 
  taken, 
  being 
  over 
  200 
  mm 
  in 
  length. 
  In 
  this 
  speci- 
  

   men 
  the 
  rostrum 
  is 
  longer 
  than 
  the 
  carapax 
  proper, 
  the 
  antennal 
  scales 
  

   are 
  half 
  as 
  broad 
  as 
  long, 
  and 
  the 
  telson 
  is 
  as 
  long 
  as 
  the 
  sixth 
  somite 
  

   of 
  the 
  pleon. 
  

  

  Measurements 
  in 
  millimeters. 
  

  

  Catalogue 
  number. 
  

   Station 
  

  

  Sex 
  

  

  Length 
  from 
  tip 
  of 
  rostrum 
  to 
  tip 
  of 
  telson 
  . 
  

  

  Length 
  of 
  carapax, 
  including 
  rostrum 
  

  

  Length 
  of 
  rostrum 
  

  

  Height 
  of 
  carapax 
  

  

  Breadth 
  of 
  carapax 
  

  

  Length 
  of 
  eye-stalk 
  and 
  eye 
  

  

  Greatest 
  diameter 
  of 
  eye 
  

  

  Length 
  of 
  antennal 
  scale 
  

  

  Breadth 
  of 
  antennal 
  scale 
  

  

  Length 
  of 
  second 
  gnathopod 
  

  

  Length 
  of 
  first 
  peraeopod 
  

  

  Length 
  of 
  chela 
  

  

  Breadth 
  of 
  chela 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  second 
  peroeopod 
  

  

  Length 
  of 
  chela 
  

  

  Breadth 
  of 
  chela 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  third 
  peraeopod 
  

  

  Length 
  of 
  chela 
  

  

  Breadth 
  of 
  chela 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  fourth 
  peraeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  fifth 
  peraeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  sixth 
  somite 
  of 
  pleon 
  

  

  Height 
  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 
  

  

  Breadth 
  of 
  outer 
  lamella 
  of 
  uropod 
  

  

  