﻿290 
  Miscellaneous. 
  

  

  MISCELLANEOUS. 
  

  

  Note 
  on 
  the 
  Relative 
  Claims 
  to 
  Recognition 
  of 
  the 
  Generic 
  Names 
  

   Arbacia, 
  Gray, 
  and 
  Echinocidaris, 
  Des 
  Moulins. 
  By 
  F. 
  Jeffrey 
  

   Bell. 
  

  

  In 
  the 
  year 
  1835 
  Dr. 
  J. 
  E. 
  Gray 
  and 
  M. 
  Des 
  Moulins 
  gave 
  respec- 
  

   tively 
  the 
  names 
  Arbacia 
  and 
  Echinocidaris 
  to 
  the 
  same 
  typo 
  of 
  

   Echinoids. 
  The 
  latter 
  claimed 
  priority 
  *, 
  " 
  puisque 
  mon 
  Tableau 
  

   synoptique 
  des 
  genres 
  ... 
  a 
  ete 
  publie 
  en 
  aout 
  1835," 
  while, 
  he 
  

   Bays, 
  the 
  name 
  of 
  Gray 
  was 
  not 
  published 
  till 
  October 
  1835. 
  Mr. 
  A. 
  

   Agassiz, 
  in 
  his 
  ' 
  Bevision 
  of 
  the 
  Echini 
  ' 
  (p. 
  90), 
  gave 
  the 
  priority 
  

   to 
  Gray, 
  adding 
  to 
  his 
  name 
  " 
  April," 
  to 
  Des 
  Moulins's 
  " 
  July 
  : 
  " 
  

   these 
  months 
  mark, 
  however, 
  only 
  the 
  date 
  of 
  reading 
  ; 
  the 
  date 
  of 
  

   publication, 
  which 
  is 
  quite 
  another 
  matter, 
  was 
  for 
  Des 
  Moulins's 
  

   name 
  August 
  15 
  ; 
  that 
  of 
  Gray's 
  name 
  cannot 
  be 
  definitely 
  asserted 
  

   from 
  the 
  contents 
  of 
  the 
  ' 
  Proceedings 
  of 
  the 
  Zoological 
  Society 
  ' 
  for 
  

   1835, 
  and 
  the 
  only 
  known 
  date 
  was 
  the 
  republication 
  in 
  the 
  October 
  

   number 
  of 
  the 
  ' 
  Philosophical 
  Magazine.' 
  I 
  have 
  now 
  to 
  say 
  that 
  at 
  

   my 
  request 
  Mr. 
  "Williams, 
  of 
  the 
  Zoological 
  Society, 
  has 
  instituted 
  a 
  

   search 
  through 
  their 
  records, 
  and 
  finds 
  that 
  the 
  sheet 
  containing 
  

   Gray's 
  paper 
  " 
  was 
  delivered 
  to 
  the 
  Society 
  at 
  their 
  rooms 
  on 
  the 
  

   1 
  7th 
  July, 
  1835. 
  In 
  those 
  days 
  sheets 
  so 
  soon 
  as 
  printed 
  off 
  were 
  

   distributed 
  to 
  the 
  Fellows." 
  I 
  am 
  afraid, 
  therefore, 
  the 
  case 
  for 
  

   Gray's 
  nonsense 
  name 
  as 
  against 
  Des 
  Moulins's 
  happy 
  suggestion 
  is 
  

   complete 
  and 
  that 
  we 
  cannot 
  avoid 
  using 
  the 
  name 
  Arbacia. 
  

  

  On 
  the 
  presence 
  of 
  Spinnerets 
  in 
  the 
  Myriopoda. 
  

   By 
  M. 
  Jules 
  Chalatjde. 
  

  

  One 
  of 
  the 
  principal 
  characters 
  of 
  the 
  Araneida 
  consists 
  in 
  the 
  

   presence 
  at 
  the 
  extremity 
  of 
  the 
  abdomen 
  of 
  spinnerets, 
  or 
  tubes, 
  

   serving 
  for 
  the 
  outflow 
  of 
  the 
  secretion 
  of 
  spinning-glands. 
  The 
  

   existence 
  of 
  analogous 
  organs 
  has 
  not 
  hitherto 
  been 
  demonstrated 
  

   in 
  the 
  Myriopoda, 
  although 
  M. 
  Fabre, 
  of 
  Avignon, 
  having 
  remarked 
  

   that 
  the 
  spermatophores 
  of 
  the 
  Geophili 
  are 
  deposited 
  upon 
  nets 
  

   composed 
  of 
  threads 
  like 
  those 
  of 
  spiders, 
  concluded 
  that 
  the 
  

   Chilopoda 
  must 
  spin 
  these 
  themselves 
  with 
  the 
  secretion 
  of 
  their 
  

   genital 
  glands 
  f. 
  My 
  observations 
  upon 
  those 
  animals 
  have 
  not 
  

   yet 
  furnished 
  mc 
  with 
  exact 
  facts 
  demonstrative 
  of 
  the 
  opinion 
  

   expressed 
  by 
  the 
  above 
  acute 
  observer. 
  

  

  I 
  have 
  been 
  more 
  fortunate 
  with 
  another 
  species, 
  Scolopendrella 
  

   immaculata, 
  Newport. 
  This 
  Myriopod, 
  which 
  has 
  been 
  separated 
  

   from 
  the 
  order 
  Chilopoda 
  to 
  form 
  that 
  of 
  the 
  Symphila 
  (Latzel), 
  

   presents 
  the 
  remarkable 
  peculiarity 
  of 
  possessing 
  an 
  apparatus 
  

  

  * 
  ' 
  Etudes 
  sin- 
  les 
  Echinid 
  is,' 
  p. 
  ^04. 
  . 
  

   t 
  Ann. 
  Sci-»~Na.1 
  iii. 
  v. 
  305. 
  

  

  