﻿64 
  PROCEEDTNGff 
  OF 
  THE 
  NATIONAL 
  MVfiEVM. 
  vol.44. 
  

  

  These 
  cudoxids, 
  in 
  both 
  of 
  which 
  the 
  bract 
  is 
  25 
  mm. 
  long, 
  agree 
  

   very 
  well 
  with 
  one 
  of 
  corresponding 
  size 
  from 
  the 
  eastern 
  Pacific. 
  

   The 
  best 
  one 
  is 
  somewhat 
  younger 
  than 
  the 
  one 
  I 
  have 
  figured 
  (191 
  1&, 
  

   pi. 
  1, 
  Ag. 
  5), 
  its 
  apical 
  canal 
  giving 
  off 
  only 
  four 
  branches 
  instead 
  of 
  

   six, 
  the 
  odd 
  basal 
  canal 
  three 
  instead 
  of 
  four. 
  But 
  these 
  differences 
  

   are 
  only 
  indications 
  of 
  differences 
  in 
  development. 
  Its 
  tentacles 
  and 
  

   gonophoros 
  are 
  not 
  in 
  good 
  enough 
  condition 
  to 
  add 
  anything 
  to 
  my 
  

   previous 
  account. 
  

  

  The 
  polygastric 
  state 
  is 
  not 
  represented 
  in 
  the 
  collection. 
  

  

  F.amily 
  PRAYIDAE 
  KoUiker, 
  1853. 
  

  

  Genus 
  ROSACEA 
  Quoy 
  and 
  Gaimard, 
  1827. 
  

   ROSACEA 
  PLICATA 
  Quoy 
  and 
  Gaimard. 
  

  

  Plates, 
  figs. 
  ]0, 
  II. 
  

   Rosacea 
  plicata 
  Quoy 
  and 
  Gaimard, 
  1827, 
  p. 
  147, 
  pi. 
  4 
  B. 
  

   (For 
  discussion 
  and 
  synonymy 
  of 
  this 
  species, 
  see 
  Bigelow, 
  19116, 
  pp. 
  197, 
  201.) 
  

  

  Station 
  4764, 
  1130-0 
  fathoms; 
  2 
  loose 
  nectophores. 
  

  

  Station 
  4766, 
  300-0 
  fathoms; 
  1 
  complete 
  specimen, 
  9 
  loose 
  necto- 
  

   phores. 
  

  

  Station 
  4767, 
  300-0 
  fathoms; 
  2 
  complete 
  specimens, 
  2 
  loose 
  

   nectophores. 
  

  

  Station 
  4775, 
  200-0 
  fathoms; 
  1 
  complete 
  specimen, 
  3 
  loose 
  nec- 
  

   tophores. 
  

  

  Station 
  4785, 
  300-0 
  fathoms; 
  1 
  complete 
  specimen, 
  19 
  loose 
  

   nectophores. 
  

  

  Station 
  4785, 
  300-0 
  fathoms; 
  2 
  loose 
  nectophores. 
  

  

  Station 
  4800, 
  300-0 
  fathoms; 
  1 
  complete 
  specimen, 
  16 
  loose 
  

   nectophores. 
  

  

  Station 
  4865, 
  200-0 
  fathoms; 
  9 
  loose 
  nectophores. 
  

  

  Station 
  4902, 
  432-0 
  fathoms; 
  2 
  loose 
  nectophores. 
  

  

  Station 
  4920, 
  300-0 
  fathoms; 
  2 
  loose 
  nectophores. 
  

  

  Forty-five 
  of 
  the 
  loose 
  nectophores 
  are 
  younger 
  (superior) 
  , 
  and 
  2 
  1 
  

   older 
  (inferior). 
  The 
  largest 
  nectophores 
  are 
  about 
  30 
  mm. 
  long. 
  

  

  The 
  series 
  is 
  tantalizing, 
  for 
  although 
  the 
  nectophores 
  are 
  in 
  good 
  

   condition, 
  the 
  stems 
  are 
  invariably 
  broken 
  oft' 
  short, 
  so 
  that 
  the 
  most 
  

   important 
  question, 
  that 
  is, 
  whether 
  there 
  are 
  special 
  nectophores 
  in 
  

   the 
  cormidia, 
  must 
  remain 
  unanswered. 
  The 
  evidence 
  that 
  R. 
  

   flicata 
  does 
  have 
  such 
  organs 
  is 
  not 
  as 
  conclusive 
  as 
  might 
  be 
  sup- 
  

   posed, 
  for 
  nothing 
  of 
  the 
  sort 
  is 
  shown 
  by 
  Keferstein 
  and 
  Ehlers 
  

   (1861, 
  "P. 
  diphyes") 
  or 
  by 
  Kolliker 
  (1853&, 
  "P. 
  dipliyes"), 
  and 
  the 
  

   special 
  nectophore 
  in 
  Vogt's 
  figure 
  (1854, 
  "P. 
  diphyes'') 
  might 
  be 
  a 
  

  

  