﻿NOTES 
  ON 
  liHABDOPLEUHA 
  NORMANI, 
  ALLMAN. 
  23 
  

  

  Notes 
  on 
  Rhabdopleura 
  Normani, 
  AUman. 
  

  

  By 
  

   O. 
  Herbert 
  Fowler, 
  B,A., 
  Ph.D., 
  F.Z.S., 
  F.L.S. 
  

  

  (Witli 
  Plate 
  3.) 
  

  

  These 
  notes, 
  written 
  mainly 
  some 
  years 
  ago, 
  did 
  not 
  seem 
  

   worthy 
  of 
  publication 
  by 
  themselves. 
  But 
  my 
  friend 
  Mr. 
  

   Harmer 
  lately 
  called 
  my 
  attention 
  to 
  some 
  remarkable 
  state- 
  

   ments 
  made 
  by 
  Messrs. 
  Conte 
  and 
  Vaney 
  * 
  which 
  seem 
  to 
  

   justify 
  the 
  publication 
  of 
  the 
  present 
  paper, 
  despite 
  the 
  small 
  

   quantity 
  and 
  imperfect 
  preservation 
  of 
  my 
  materials. 
  

  

  These 
  gentlemen 
  state 
  that 
  the 
  peduncle 
  is 
  inserted 
  " 
  en 
  

   uu 
  point 
  d'oii 
  divergent 
  le 
  corps 
  proprement 
  dit, 
  I'epistome 
  

   et 
  les 
  deux 
  bras." 
  This 
  point, 
  on 
  the 
  ventral 
  surface, 
  is 
  the 
  

   mouth 
  ; 
  but, 
  as 
  a 
  matter 
  of 
  fact, 
  the 
  peduncle 
  is 
  inserted 
  

   considerably 
  behind 
  it 
  (compare 
  Professor 
  Lankester's 
  figures 
  

   from 
  living 
  material"). 
  I 
  can 
  neither 
  confirm 
  nor 
  deny 
  the 
  

   statement 
  that 
  the 
  " 
  fibres 
  musculaires 
  de 
  ce 
  pedoncle 
  se 
  

   prolongent 
  dans 
  les 
  bras 
  et 
  dans 
  I'epistome," 
  but 
  I 
  do 
  not 
  

   think 
  it 
  probable 
  that 
  they 
  really 
  extend 
  so 
  far; 
  the 
  longi- 
  

   tudinal 
  muscles 
  of 
  the 
  peduncle 
  are 
  for 
  the 
  retraction 
  of 
  the 
  

   animal 
  as 
  a 
  whole 
  in 
  its 
  tube; 
  the 
  graceful 
  movements 
  of 
  arms 
  

   and 
  epistome, 
  shown 
  so 
  beautifully 
  in 
  Professor 
  Lankester's 
  

   figures, 
  demand 
  an 
  intrinsic 
  musculature, 
  parts 
  of 
  which 
  I 
  

   have 
  already 
  recorded.^ 
  It 
  is 
  stated 
  that 
  I 
  "denied" 
  the 
  

   existence 
  of 
  the 
  testis 
  figured 
  and 
  described 
  by 
  Lankester, 
  

  

  1 
  A. 
  Conte 
  and 
  C. 
  Vaiiey, 
  ' 
  Comptes 
  rendus 
  Acad. 
  Sci. 
  Paris,' 
  cxxxv, 
  pp. 
  

   63, 
  748. 
  

  

  2 
  E. 
  R. 
  Lankester, 
  ' 
  Quart. 
  Jourii. 
  Micr. 
  Sci.,' 
  xxiv, 
  pi. 
  38. 
  

  

  ^ 
  G. 
  H. 
  Powler, 
  ' 
  Festschrift 
  zum 
  ZOteii 
  Gebiirtstage, 
  Rudolf 
  Leuckarls, 
  

   Leipzig, 
  1893, 
  4to. 
  

  

  / 
  

  

  