﻿624 
  

  

  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  [20] 
  

  

  Iu 
  the 
  male 
  the 
  abdomen 
  is 
  much 
  broader 
  relatively 
  to 
  the 
  sternum 
  

   than 
  in 
  Euprognatha 
  rastellifera, 
  and 
  has 
  a 
  low 
  tuberculiform 
  elevation 
  

   on 
  each 
  somite. 
  The 
  first 
  and 
  second 
  somites 
  are 
  narrow, 
  the 
  third 
  

   broadest 
  of 
  all, 
  the 
  fourth 
  and 
  fifth 
  successively 
  a 
  very 
  little 
  narrower, 
  

   the 
  fifth 
  fully 
  twice 
  as 
  broad 
  as 
  long, 
  and 
  the 
  sixth 
  and 
  seventh 
  consol- 
  

   idated 
  as 
  in 
  Euprognatha 
  and 
  Collodes, 
  together 
  much 
  broader 
  than 
  long 
  

   and 
  very 
  broad 
  and 
  obtuse 
  at 
  the 
  tip. 
  The 
  appendages 
  of 
  the 
  first 
  

   somite 
  reach 
  nearly 
  to 
  the 
  tip 
  of 
  the 
  abdomen, 
  and 
  their 
  tips 
  are 
  stout 
  

   and 
  curved 
  outward 
  very 
  strongly. 
  

  

  The 
  eggs 
  are 
  numerous, 
  nearly 
  spherical, 
  and 
  approximately 
  0.7""" 
  in 
  

   diameter 
  in 
  alcoholic 
  specimens. 
  

  

  These 
  specimens 
  and 
  three 
  others 
  from 
  the 
  Bay 
  of 
  Biscay 
  give 
  the 
  

   following 
  : 
  

  

  Measurements 
  in 
  millimeters 
  and 
  hundred/Its 
  of 
  length 
  of 
  carapax. 
  

  

  Station. 
  

  

  Sex 
  

  

  Length 
  of 
  carapax, 
  including 
  rostral 
  spines 
  

  

  Length 
  of 
  carapax, 
  excluding 
  rostral 
  spines 
  

  

  Breadth 
  of 
  carapax, 
  including 
  spines 
  

  

  Breadth 
  of 
  carapax, 
  excluding 
  spines 
  

  

  Same 
  in 
  hundredths 
  of 
  the 
  length, 
  excluding 
  rostral 
  

  

  spines 
  

  

  Breadth 
  of 
  front 
  between 
  orbits 
  

  

  Length 
  of 
  cheliped 
  

  

  Length 
  of 
  chela 
  

  

  Breadth 
  of 
  chela, 
  excluding 
  spines 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  first 
  ambulatory 
  pemeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  

  

  Length 
  of 
  second 
  ambulatory 
  peraeopod 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dact.\ 
  lus 
  

  

  Length 
  of 
  fourt 
  h 
  ambulatory 
  peraeopod 
  v 
  

  

  Length 
  of 
  propodus 
  

  

  Length 
  of 
  dactylus 
  

  

  1,090. 
  

  

  12.0 
  

   9.3 
  

   7.fi 
  

  

  7.6 
  

  

  82 
  

  

  2.0 
  

   23.0 
  

   10 
  

  

  3.1 
  

  

  4.6 
  

   41.0 
  

   13. 
  5 
  • 
  

  

  8.6 
  

   37.0 
  

   10.8 
  

  

  7.0 
  

   31.0 
  

  

  9.0 
  

  

  5.5 
  

  

  ? 
  

   12 
  + 
  

   10.8 
  

   9.6 
  

   9.3 
  

  

  86 
  

   2.1 
  

  

  19.0 
  

   8.0 
  

   2.1 
  

   4.0 
  

  

  38. 
  

  

  12.0 
  

   8.0 
  

  

  34.0 
  

   9.9 
  

   6.8 
  

  

  30.0 
  

   8.0 
  

   6.0 
  

  

  10.5 
  

   9.4 
  

   9.3 
  

  

  98 
  

   2.0 
  

  

  20. 
  

   8.5 
  

   2.0 
  

   4.5 
  

  

  36.0 
  

  

  10.7 
  

  

  7.3 
  

  

  31.0 
  

  

  8.8 
  

  

  6.1 
  

  

  Bay 
  of 
  Biscay. 
  

  

  7.0 
  

   5.8 
  

   5.7 
  

  

  81 
  

   1.6 
  

  

  13.0 
  

   5.4 
  

   1.3 
  

   2.6 
  

  

  27.0 
  

   9.0 
  

   6. 
  

  

  24. 
  

   7.1 
  

   5. 
  3 
  

  

  20.0 
  

   6.0 
  

   4.2 
  

  

  82 
  

   1.4 
  

  

  ? 
  

   7.1 
  

   6.3 
  

   5.2 
  

   5.1 
  

  

  81 
  

   1.4 
  

  

  Anamathia 
  Agassizii 
  Smith. 
  

  

  Amathia 
  Agassisii 
  Smith, 
  Bull. 
  Mus. 
  Comp. 
  ZooL, 
  x, 
  p. 
  1, 
  pi. 
  2, 
  figs. 
  2, 
  3, 
  1S82; 
  

  

  Proc. 
  Nat. 
  Mus., 
  vi, 
  p. 
  3, 
  1883; 
  Report 
  U. 
  S. 
  Fish 
  Com., 
  x, 
  for 
  1882, 
  p. 
  

  

  346, 
  1884. 
  

   Anamathia 
  Agassizii 
  Smith, 
  Proc. 
  Natiomil 
  Mus., 
  vii, 
  p. 
  497, 
  1885. 
  

  

  (Plato 
  I, 
  Figs. 
  2, 
  3, 
  3a.) 
  

  

  Specimens 
  examined. 
  

  

  