﻿654 
  EEPOKT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [50] 
  

  

  Length 
  of 
  second 
  perseopod 
  9.5 
  

  

  Length 
  of 
  third 
  perseopod 
  25.0 
  

  

  Length 
  of 
  merus 
  6. 
  

  

  Length 
  of 
  carpus 
  7.3 
  

  

  Length 
  of 
  propodus 
  3. 
  7 
  

  

  Length 
  of 
  dactylus 
  1.9 
  

  

  Length 
  of 
  fourth 
  peneopod 
  23. 
  

  

  Length 
  of 
  merus 
  5. 
  4 
  

  

  Length 
  of 
  carpus 
  3. 
  3 
  

  

  Length 
  of 
  propodus 
  4.5 
  

  

  Length 
  of 
  dactylus 
  2.8 
  

  

  Length 
  of 
  sixth 
  somite 
  of 
  pleon 
  11.0 
  

  

  Height 
  of 
  sixth 
  somite 
  of 
  pleon 
  3. 
  5 
  

  

  Length 
  of 
  telson 
  11.5 
  

  

  Length 
  of 
  inner 
  lamella 
  of 
  uropod 
  9.0 
  

  

  Breadth 
  of 
  inner 
  lamella 
  of 
  uropod 
  1.7 
  

  

  Length 
  of 
  outer 
  lamella 
  of 
  uropod 
  8.4 
  

  

  Breadth 
  of 
  outer 
  lamella 
  of 
  uropod 
  2.5 
  

  

  PONTOPHILTJS 
  GRACILIS 
  Smith. 
  

  

  Bull. 
  Mus. 
  Comp. 
  Zool., 
  x, 
  p. 
  36, 
  pi. 
  7, 
  figs. 
  2, 
  2a, 
  26, 
  2c, 
  3, 
  3a, 
  1882. 
  

  

  (Plate 
  XI, 
  Figs. 
  1, 
  la, 
  2.) 
  

  

  This 
  species, 
  first 
  described 
  from 
  a 
  single 
  specimen 
  in 
  the 
  Blake 
  col- 
  

   lection 
  of 
  ] 
  880, 
  has 
  not 
  yet 
  been 
  found 
  in 
  the 
  Albatross 
  collections, 
  al- 
  

   though 
  two 
  specimens 
  were 
  taken 
  by 
  the 
  Fish 
  Hawk 
  in 
  1881 
  off 
  Martha's 
  

   Vineyard 
  : 
  Station 
  994, 
  September 
  8, 
  north 
  lat. 
  39° 
  40', 
  west 
  long. 
  71° 
  

   30', 
  3G8 
  fathoms, 
  mud, 
  temperature 
  40° 
  — 
  one 
  female 
  ; 
  and 
  station 
  1029, 
  

   September 
  14, 
  north 
  lat. 
  39° 
  57' 
  6", 
  west 
  long. 
  69° 
  16', 
  456 
  fathoms, 
  mud 
  

   and 
  sand, 
  temperature 
  40° 
  — 
  one 
  male. 
  

  

  Sabinea 
  princeps 
  Smith. 
  

  

  