﻿THE 
  ANNALS 
  

  

  AND 
  

  

  MAGAZINE 
  OF 
  NATURAL 
  HISTORY. 
  

  

  [EIGHTH 
  SERIES.] 
  

   No. 
  41. 
  MAY 
  1911. 
  

  

  LI 
  I. 
  — 
  On 
  the 
  Structure 
  of 
  Magelona. 
  By 
  Prof. 
  M'Intosh, 
  

   F.R.S., 
  Gatty 
  Marine 
  Laboratory, 
  St. 
  Andrews*. 
  

  

  In 
  his 
  observations 
  on 
  the 
  Annelids 
  from 
  the 
  Island 
  of 
  

   St. 
  Catherine, 
  off 
  the 
  coast 
  of 
  Brazil, 
  Dr. 
  Fritz 
  Miiller, 
  in 
  

   1858, 
  briefly 
  mentions 
  f, 
  under 
  the 
  name 
  of 
  Magelona 
  papilli- 
  

   cor/iis, 
  a 
  remarkable 
  form 
  with 
  a 
  flattened 
  snout, 
  two 
  long 
  

   tentacles 
  furnished 
  with 
  cylindrical 
  papilla?, 
  corpusculated 
  

   blood, 
  and 
  other 
  features 
  which 
  appear 
  to 
  agree 
  in 
  the 
  closest 
  

   manner 
  with 
  the 
  British 
  annelid 
  which 
  forms 
  the 
  subject 
  of 
  

   the 
  following 
  remarks. 
  The 
  type 
  was 
  next 
  referred 
  to 
  by 
  

   Dr. 
  Edouard 
  Claparede 
  in 
  his 
  account 
  J 
  of 
  a 
  larval 
  form 
  

   which 
  he 
  found 
  at 
  St. 
  Vaast 
  la 
  Hougue, 
  on 
  the 
  west 
  coast 
  of 
  

   France. 
  The 
  same 
  singular 
  species, 
  however, 
  as 
  that 
  indi- 
  

   cated 
  by 
  the 
  first-mentioned 
  author 
  was 
  probably 
  originally 
  

   discriminated 
  by 
  the 
  late 
  Dr. 
  George 
  Johnston, 
  of 
  Berwick 
  §, 
  

   but 
  as 
  his 
  description 
  was 
  not 
  published 
  until 
  1865 
  || 
  — 
  long 
  

   after 
  his 
  death 
  — 
  the 
  name 
  (Mcea 
  mirabilis) 
  he 
  gave 
  it 
  lapses. 
  

   In 
  Britain 
  it 
  has 
  occurred 
  abundantly 
  at 
  St. 
  Andrews, 
  and 
  

   also, 
  as 
  Dr. 
  Carrington 
  first 
  showed 
  ^[, 
  at 
  Southport 
  ; 
  indeed, 
  

  

  * 
  Translated 
  from 
  the 
  Zeitsch. 
  f. 
  wiss. 
  Zool. 
  Bel. 
  xxxi. 
  p. 
  401 
  (1878). 
  

  

  t 
  " 
  Einiges 
  iiber 
  die 
  Annelidenfauna 
  der 
  Insel 
  Santa 
  Catharina 
  an 
  der 
  

   Brasilianischen 
  Kiiste/' 
  von 
  Dr. 
  Fr. 
  Miiller. 
  (Aus 
  einer 
  brieiiichen 
  Mit- 
  

   theilung 
  an 
  Prof. 
  Grnbe.) 
  Hierzu 
  Taf. 
  vi. 
  & 
  vii. 
  Arcbiv 
  fur 
  Naturges. 
  

   1858, 
  p. 
  211. 
  

  

  X 
  ' 
  Beobachtungen 
  iiber 
  Anat. 
  n. 
  Entwicklungsgeschichte 
  wirb. 
  Thiere 
  

   an 
  der 
  Kiiste 
  von 
  Normandie 
  angestellt,' 
  Leipzig, 
  18fc»3. 
  

  

  § 
  From 
  preparations 
  forwarded 
  by 
  the 
  distinguished 
  botanist, 
  Dr. 
  

   Greville. 
  

  

  || 
  ' 
  British 
  Museum 
  Catalogue 
  of 
  Worms,' 
  p. 
  278. 
  

  

  % 
  Proceed. 
  Lit. 
  & 
  Philos. 
  Soc. 
  Manchester, 
  iv, 
  1865, 
  p. 
  \6~>. 
  

  

  Ann 
  & 
  May. 
  X. 
  Hist. 
  Ser. 
  8. 
  Vol. 
  vii. 
  2S 
  

  

  