﻿274 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  m 
  

  

  Sea. 
  Also 
  Iceland, 
  Faroes 
  to 
  Portugal, 
  Azores, 
  Madeira, 
  Mediter- 
  

   ranean, 
  Adriatic; 
  to 
  Rhode 
  Island; 
  to 
  Gulf 
  of 
  California 
  and 
  Mexico; 
  

   Japan; 
  South 
  Atlantic 
  and 
  Antarctic. 
  In 
  low 
  water 
  to 
  1,889 
  fathoms; 
  

   epitokous 
  phase 
  in 
  surface 
  layers. 
  

  

  Family 
  Goniadidae 
  

  

  Body 
  elongated, 
  more 
  or 
  less 
  attenuated 
  at 
  both 
  ends, 
  divided 
  

   into 
  two 
  regions, 
  anterior 
  region 
  with 
  uniramous 
  parapodia 
  (fig. 
  31, 
  

   f) 
  and 
  long, 
  wider 
  posterior 
  region 
  with 
  biramous 
  parapodia 
  (fig. 
  31, 
  

   g). 
  Segments 
  uniannulate. 
  Prostomium 
  sharply 
  conical, 
  trans- 
  

   versely 
  annulated, 
  ending 
  distally 
  in 
  four 
  small 
  antennae 
  (fig. 
  31, 
  e). 
  

   Elongated 
  conical 
  dorsal 
  and 
  ventral 
  cirri 
  (fig. 
  31, 
  /, 
  g). 
  Two 
  anal 
  

   cirri. 
  Notosetae 
  simple; 
  neurosetae 
  compound. 
  Branchiae 
  absent. 
  

   Proboscis 
  eversible, 
  long, 
  cylindrical, 
  with 
  terminal 
  papillae 
  and 
  

   proboscidial 
  organs, 
  a 
  pair 
  of 
  larger, 
  dentate, 
  dark 
  horny 
  macrognaths, 
  

   and 
  a 
  circlet 
  of 
  many 
  smaller 
  H- 
  or 
  Y-shaped 
  micrognaths. 
  Epitoky 
  

   involves 
  only 
  biramous 
  portion. 
  

  

  Represented 
  by 
  a 
  single 
  species 
  from 
  Point 
  Barrow. 
  

  

  Genus 
  Glycinde 
  F. 
  Miiller, 
  1858 
  

   Glycinde 
  wireni 
  Arwidsson, 
  1898 
  

  

  FiGUEE 
  31, 
  e-g 
  

  

  Goniada 
  nordmanni 
  Wir^n, 
  1883, 
  p. 
  403, 
  pi. 
  30, 
  figs. 
  4, 
  5, 
  pi. 
  32, 
  figs. 
  1, 
  2; 
  (not 
  

  

  Eone 
  nordmanni 
  Malmgren, 
  1867). 
  

   Glycinde 
  wirini 
  Arwidsson, 
  1898, 
  p. 
  53, 
  pi. 
  3, 
  figs. 
  48, 
  49. 
  — 
  not 
  Moore, 
  1908, 
  p. 
  

  

  348 
  ( 
  = 
  (?. 
  armigera 
  Moore; 
  in 
  USNM). 
  

  

  Description. 
  — 
  Length 
  up 
  to 
  45 
  mm., 
  width 
  without 
  setae 
  2.5 
  mm., 
  

   width 
  including 
  setae 
  5 
  mm., 
  120 
  segments. 
  Anterior 
  region 
  rounded, 
  

   tapering 
  sharply 
  to 
  pointed 
  anterior 
  end; 
  posterior 
  two-thirds 
  wider, 
  

   more 
  flattened, 
  tapering 
  gradually 
  posteriorly. 
  Prostomium 
  with 
  10 
  

   annuli; 
  two 
  pairs 
  of 
  small 
  deeply-set 
  eyes, 
  one 
  pair 
  in 
  basal 
  ring, 
  one 
  

   pair 
  in 
  distal 
  ring 
  (may 
  be 
  obscure). 
  Anterior 
  uniramous 
  region 
  

   consisting 
  of 
  30-32 
  (31 
  in 
  Arwidsson) 
  setigers, 
  with 
  presetal 
  lobe 
  wide 
  

   basally, 
  narrowed 
  abruptly 
  to 
  a 
  lanceolate 
  tip; 
  postsetal 
  lobe 
  wide, 
  

   conical; 
  pre- 
  and 
  postsetal 
  lobes 
  as 
  well 
  as 
  dorsal 
  and 
  ventral 
  cirri 
  

   subequal 
  in 
  length; 
  a 
  fan-shaped 
  bundle 
  of 
  compound, 
  spinigerous 
  

   neurosetae. 
  Posterior 
  biramous 
  region 
  with 
  shorter 
  notopodia 
  dis- 
  

   tinctly 
  separated 
  from 
  neuropodia. 
  Notopodium 
  a 
  short, 
  rounded 
  

   lobe 
  with 
  a 
  short 
  dorsal 
  cirrus 
  and 
  a 
  short, 
  protruding 
  presetal 
  lobe; 
  

   notosetae 
  few 
  in 
  number, 
  acicular, 
  hooked 
  at 
  tip, 
  with 
  long 
  pointed 
  

   hood. 
  Neuropodia 
  with 
  short 
  conical, 
  postsetal 
  lobe, 
  subequal 
  to 
  

   ventral 
  cirrus; 
  presetal 
  lobe 
  wide 
  basally 
  with 
  a 
  lanceolate 
  narrower 
  

   tip, 
  longer 
  than 
  postsetal 
  lobe; 
  neurosetae 
  as 
  in 
  anterior 
  region. 
  

  

  