﻿692 
  

  

  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  [88] 
  

  

  ly 
  problematical, 
  but 
  Bate's 
  genus 
  is 
  described 
  as 
  having 
  the 
  eyes 
  "not 
  

   large," 
  the 
  eye-stalks 
  flattened 
  and 
  furnished 
  witb 
  a 
  conspicuous 
  tu- 
  

   bercle, 
  and 
  the 
  flagella 
  of 
  the 
  antennula 
  "not 
  longer 
  than 
  thecarapax" 
  

   (although 
  under 
  the 
  second 
  species 
  these 
  flagella 
  are 
  said 
  to 
  be 
  "half 
  as 
  

   long 
  as 
  the 
  animal"), 
  characters 
  which 
  I 
  should 
  not 
  expect 
  to 
  find 
  in 
  

   species 
  congeneric 
  with 
  the 
  one 
  here 
  described. 
  

  

  Benthonectes 
  filipes 
  Smith. 
  

  

  Proc. 
  National 
  Mus., 
  vii, 
  p. 
  509, 
  1885. 
  

  

  (Plate 
  XVIII, 
  Figs. 
  1, 
  la; 
  Plate 
  XIX, 
  Figs. 
  1, 
  la, 
  l&.) 
  

   Specimens 
  examined. 
  

  

  This 
  species 
  is 
  apparently 
  very 
  closely 
  allied 
  to 
  that 
  figured 
  by 
  A. 
  

   Milne-Edwards 
  as 
  "Benthesicymus 
  Bartletti 
  (Smith)?" 
  (Recueil 
  de 
  figures 
  

   de 
  Crustaces 
  nouveaux 
  ou 
  peu 
  connus, 
  1883), 
  and 
  is 
  probably 
  specifically 
  

   identical 
  with 
  it. 
  

  

  The 
  carapax 
  is 
  similar 
  to 
  that 
  of 
  Benthcecetes 
  Bartletti 
  in 
  general 
  form, 
  

   but 
  is 
  considerably 
  narrower 
  and 
  less 
  expanded 
  posteriorly. 
  The 
  dor- 
  

   sum 
  is 
  carinated 
  or 
  slightly 
  angulated 
  to 
  near 
  the 
  posterior 
  border, 
  and 
  

   rising 
  anteriorly 
  projects 
  forward 
  iu 
  a 
  rostrum 
  almost 
  exactly 
  as 
  in 
  that 
  

   species 
  except 
  that 
  it 
  is 
  a 
  very 
  little 
  longer, 
  so 
  as 
  slightly 
  to 
  overreach 
  

   the 
  eyes, 
  and 
  the 
  lower 
  edge 
  is 
  more 
  nearly 
  horizontal. 
  The 
  inferior 
  

   angle 
  of 
  the 
  orbit 
  is 
  slightly 
  more 
  acute, 
  the 
  anteunal 
  spine 
  a 
  little 
  larger 
  

   and 
  a 
  little 
  farther 
  forward, 
  and 
  there 
  is 
  in 
  addition 
  a 
  hepatic 
  spine 
  

   nearly 
  as 
  large 
  as 
  the 
  anteunal. 
  

  

  The 
  eye-stalks 
  are 
  relatively 
  short, 
  and 
  the 
  very 
  dark 
  brown 
  eyes, 
  

   large, 
  swollen, 
  reniform, 
  project 
  over 
  the 
  ends 
  of 
  the 
  stalks 
  and 
  extend 
  

   proximally 
  along 
  their 
  mesial 
  sides 
  more 
  than 
  half 
  way 
  to 
  the 
  bases 
  of 
  

   the 
  stalks, 
  the 
  greatest 
  diameter 
  of 
  the 
  eye 
  being 
  at 
  least 
  three-fourths 
  

   of 
  the 
  whole 
  length 
  of 
  the 
  stalk. 
  There 
  is 
  a 
  small 
  and 
  inconspicuous 
  

   tubercle 
  on 
  the 
  mesial 
  side 
  of 
  the 
  stalk 
  just 
  back 
  of 
  the 
  edge 
  of 
  the 
  

   eye. 
  The 
  antennal 
  scales 
  are 
  slightly 
  narrower 
  than 
  in 
  Benthcecetes 
  

   Bartletti, 
  but 
  otherwise 
  the 
  antennae 
  and 
  antennulse 
  are 
  essentially 
  as 
  

   in 
  that 
  species. 
  The 
  flagella 
  of 
  the 
  antennula 
  are 
  approximately 
  equal 
  

   iu 
  length, 
  much 
  longer 
  than 
  the 
  body 
  of 
  the 
  animal, 
  and 
  very 
  slender, 
  

   while 
  the 
  flagellum 
  of 
  the 
  antenna 
  is 
  very 
  much 
  longer 
  and 
  almost 
  

   equally 
  slender. 
  

  

  The 
  oral 
  appendages 
  are 
  similar 
  to 
  those 
  of 
  Benthcecetes 
  Bartletti, 
  but 
  

  

  