﻿226 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  los 
  

  

  Ardeobia 
  anticostiensis 
  Annenkova, 
  1934, 
  p. 
  322; 
  1937, 
  p. 
  149, 
  pi. 
  3, 
  figs. 
  26, 
  27; 
  

  

  1938, 
  p. 
  133. 
  

   Eucranta 
  anticostiensis 
  Hartman, 
  1944a, 
  p. 
  337. 
  

  

  Description. 
  — 
  Length 
  11-26 
  mm., 
  width 
  mcluding 
  setae 
  4-8 
  mm. 
  

   Segments 
  35 
  or 
  36. 
  Prostomium 
  with 
  distinct 
  cephaHc 
  peaks; 
  anterior 
  

   pair 
  of 
  eyes 
  antero 
  ventral, 
  not 
  visible 
  dorsally. 
  Antennae 
  and 
  dorsal 
  

   cirri 
  with 
  short, 
  clavate 
  papillae. 
  Elytral 
  pairs 
  get 
  larger 
  posteriorly, 
  

   the 
  last 
  pair 
  usually 
  extending 
  beyond 
  end 
  of 
  body. 
  Elytra 
  without 
  

   fringe 
  of 
  papillae, 
  smooth 
  except 
  for 
  scattered 
  microtubercles 
  on 
  

   anterior 
  curved 
  part. 
  Upper 
  notosetae 
  shorter, 
  stouter, 
  with 
  short, 
  

   blunt 
  to 
  sharp-pointed 
  tips; 
  most 
  of 
  notosetae 
  more 
  slender, 
  with 
  

   capillary 
  tips. 
  Few 
  upper 
  neurosetae 
  longer, 
  ending 
  in 
  sharp, 
  slender 
  

   tips;mostofnem'Osetae 
  with 
  bifid 
  tips. 
  Color: 
  In 
  life 
  and 
  iu 
  alcohol 
  : 
  

   Irregularly 
  banded 
  middorsally, 
  gi-eenish 
  to 
  greenish 
  black, 
  with 
  a 
  

   transverse 
  stripe 
  and 
  often 
  a 
  pair 
  of 
  small 
  spots; 
  elytra 
  with 
  reddish 
  

   brown 
  pigmented 
  area, 
  usually 
  C-shaped 
  on 
  inner 
  and 
  posterior 
  parts 
  

   and 
  often 
  a 
  darker 
  spot 
  over 
  place 
  of 
  attachment; 
  may 
  form 
  a 
  com- 
  

   plete, 
  circular, 
  colored 
  area. 
  

  

  Remarks.- 
  — 
  -Probably 
  commensal 
  in 
  habit; 
  off 
  Labrador, 
  found 
  com- 
  

   mensal 
  in 
  the 
  sinuous 
  tubes 
  of 
  the 
  terebeUid 
  Pista 
  Jlexuosa 
  (Grube), 
  

   one 
  worm 
  per 
  tube. 
  

  

  New 
  records. 
  — 
  Arctic 
  Alaska: 
  Point 
  Barrow 
  base, 
  washed 
  ashore; 
  

   off 
  Pomt 
  Barrow 
  base, 
  up 
  to 
  12.1 
  miles 
  from 
  shore, 
  24.7-123.5 
  fms., 
  

   on 
  bottoms 
  of 
  mud, 
  masses 
  of 
  worm 
  tubes, 
  and 
  various 
  combinations 
  

   of 
  mud, 
  gravel, 
  stones, 
  rocks, 
  and 
  large 
  perforated 
  rocks 
  (7 
  stations, 
  

   14 
  specimens). 
  East 
  Coast 
  North 
  America: 
  Off 
  Labrador, 
  40-95 
  

   fms.. 
  Blue 
  Dolphin 
  Expedition, 
  1949; 
  off 
  Nova 
  Scotia, 
  Maine, 
  Mas- 
  

   sachusetts, 
  10-86 
  fms., 
  U. 
  S. 
  Fish 
  Commission. 
  

  

  Distribution. 
  — 
  Alaskan 
  Arctic; 
  Labrador 
  to 
  Massachusetts; 
  Bering 
  

   Sea; 
  north 
  Japan 
  Sea. 
  In 
  low 
  water 
  to 
  123.5 
  fathoms. 
  

  

  Genus 
  Gattyana 
  IVIcIntosh, 
  1897 
  

  

  Key 
  to 
  the 
  species 
  of 
  Gattyana 
  from 
  Point 
  Barrow 
  

  

  1. 
  Notosetae 
  with 
  tips 
  blunt 
  to 
  capillary. 
  Anterior 
  pair 
  of 
  eyes 
  anteroventral, 
  

   not 
  visible 
  dorsally; 
  cephalic 
  peaks 
  distinct. 
  Elytra 
  with 
  microtubercles 
  

   only 
  G. 
  cirrosa 
  

  

  AH 
  notosetae 
  with 
  capillary 
  tips. 
  Anterior 
  pair 
  of 
  eyes 
  anterolateral; 
  cephalic 
  

   peaks 
  short 
  and 
  blunt. 
  Elytra 
  with 
  conical 
  and 
  bifid 
  microtubercles, 
  with 
  a 
  

   few 
  larger, 
  knobUke 
  macrotubercles 
  G. 
  ciliata 
  

  

  Gattyana 
  cirrosa 
  (Pallas, 
  1766) 
  

  

  Figure 
  26, 
  b 
  

  

  Aphrodita 
  cirrhosa 
  Pallas, 
  1766, 
  p. 
  95, 
  pi. 
  8, 
  figs. 
  3-6. 
  

  

  Nychia 
  cirrosa 
  Malmgren, 
  1865, 
  p. 
  58, 
  pi. 
  8, 
  fig. 
  1.— 
  Th6el, 
  1879, 
  p. 
  7.— 
  VerriU, 
  

  

  1881, 
  pp. 
  306, 
  311.— 
  Wir6n, 
  1883, 
  p. 
  387.— 
  Webster 
  and 
  Benedict, 
  1884, 
  p. 
  

  

  700; 
  1887, 
  p. 
  708.— 
  ? 
  Andrews, 
  1891, 
  p. 
  279. 
  

  

  