﻿208 
  Mr. 
  J. 
  W. 
  Fewkes 
  on 
  a 
  new 
  Athorybia. 
  

  

  spicuous 
  peduncle. 
  The 
  outer 
  surface 
  of 
  each 
  hydrophyllium 
  

   is 
  crossed 
  by 
  longitudinal 
  rows 
  of 
  nematocysts, 
  which 
  are 
  

   easily 
  seen. 
  

  

  Each 
  hydrophyllium 
  is 
  penetrated 
  by 
  a 
  tube, 
  which 
  com- 
  

   municates 
  with 
  the 
  cavity 
  of 
  the 
  body 
  below 
  the 
  float. 
  This 
  

   tube 
  ends 
  csecally 
  at 
  the 
  distal 
  extremity 
  of 
  the 
  hydro- 
  

   phyllium, 
  and 
  is 
  simple 
  and 
  unbranched. 
  

  

  Tasters. 
  — 
  Below 
  the 
  circle 
  of 
  hydrophyllia 
  there 
  arise 
  from 
  

   the 
  body 
  of 
  the 
  Athorybia 
  numerous 
  long, 
  highly 
  flexible, 
  

   flask-shaped 
  bodies, 
  which 
  closely 
  resemble 
  the 
  so-called 
  

   " 
  tasters 
  " 
  of 
  Physophores. 
  They 
  also 
  recall 
  the 
  flexible 
  

   bodies 
  which 
  are 
  found 
  appended 
  to 
  the 
  nectostem 
  of 
  

   Apolemia 
  *. 
  

  

  They 
  can 
  be 
  gracefully 
  moved 
  back 
  and 
  forth 
  and 
  can 
  be 
  

   extended 
  outward 
  between 
  the 
  hydrophyllia, 
  so 
  that 
  their 
  

   extremities 
  often 
  reach 
  far 
  beyond 
  these 
  organs. 
  Filamentous 
  

   appendages 
  of 
  the 
  tasters 
  were 
  not 
  noticed. 
  The 
  tasters 
  have 
  

   a 
  pinkish 
  colour. 
  

  

  Polypites. 
  — 
  A 
  single, 
  large, 
  well-developed, 
  and 
  several 
  

   immature 
  polypites 
  were 
  noticed. 
  The 
  large, 
  fully 
  developed 
  

   polypite, 
  p, 
  opens 
  directly 
  into 
  the 
  cavity 
  of 
  the 
  body 
  below 
  

   the 
  float, 
  of 
  which 
  it 
  appeared 
  to 
  be 
  a 
  continuation. 
  This 
  

   polypite 
  is 
  flask-shaped, 
  with 
  an 
  opening 
  or 
  mouth 
  at 
  the 
  

   distal 
  end 
  which 
  extends 
  far 
  beyond 
  the 
  hydrophyllia. 
  The 
  

   lips 
  of 
  the 
  mouth 
  are 
  often 
  expanded, 
  imparting 
  a 
  trumpet- 
  

   shape 
  to 
  this 
  region 
  of 
  the 
  polypite. 
  This 
  polypite 
  is 
  more 
  

   opaque 
  than 
  the 
  others, 
  although 
  partially 
  digested 
  food 
  was 
  

   observed 
  through 
  its 
  outer 
  body-walls. 
  The 
  other 
  polypites 
  

   are 
  immature, 
  closely 
  resembling 
  in 
  form 
  the 
  tasters, 
  and 
  in 
  

   many 
  of 
  them 
  an 
  open 
  mouth 
  was 
  observed. 
  

  

  Three 
  well 
  -developed 
  tentacles 
  are 
  figured 
  in 
  my 
  sketch 
  

   (PI. 
  VII. 
  tig. 
  1). 
  The 
  tentacle, 
  t, 
  which 
  arises 
  from 
  the 
  basal 
  

   region 
  of 
  the 
  largest 
  polypite 
  is 
  somewhat 
  more 
  conspicuous 
  

   than 
  the 
  others. 
  The 
  tentacles 
  were 
  observed 
  to 
  have 
  a 
  

   single 
  kind 
  of 
  tentacular 
  knob 
  (tig. 
  2), 
  which, 
  while 
  it 
  differs 
  

   considerably 
  from 
  either 
  kind 
  of 
  tentacular 
  knob 
  found 
  in 
  

   Diploryhia 
  formosa, 
  resembles 
  somewhat 
  those 
  of 
  Athorybia 
  

   rosacea. 
  Koll. 
  Each 
  tentacular 
  knob 
  has 
  a 
  single 
  unbranched 
  

   peduncle, 
  pa 
  1 
  , 
  which 
  hangs 
  at 
  intervals 
  from 
  the 
  tentacle 
  itself. 
  

   The 
  structure 
  of 
  the 
  tentacular 
  knob 
  of 
  A. 
  californica 
  is 
  

   peculiar 
  f. 
  The 
  base 
  of 
  the 
  knob 
  by 
  which 
  it 
  is 
  joined 
  to 
  

  

  * 
  For 
  these 
  bodies 
  in 
  Apolemia 
  the 
  name 
  nectotasters 
  is 
  suggested. 
  

  

  + 
  The 
  tentacular 
  knobs 
  of 
  A. 
  californica 
  differ 
  very 
  greatly 
  from 
  those 
  

   of 
  any 
  known 
  species 
  of 
  Athorybia. 
  The 
  character 
  of 
  the 
  tentacular 
  

   knobs 
  is 
  a 
  very 
  good 
  feature 
  by 
  which 
  to 
  distinguish 
  different 
  species 
  of 
  

   Phpophoran 
  genera. 
  

  

  