﻿Siphonophoraofthe 
  Canary 
  Islands. 
  231 
  

  

  rable 
  Eudoxice 
  with 
  reserve-gonocalyces. 
  As 
  I 
  showed 
  in 
  

   1886*, 
  Erscea 
  elongata, 
  Will, 
  represents 
  the 
  Eudoxia 
  belong- 
  

   ing 
  to 
  D. 
  subtilis. 
  

  

  It 
  appeared 
  singly 
  and 
  not 
  so 
  frequently 
  as 
  in 
  the 
  Medi- 
  

   terranean 
  during 
  the 
  whole 
  winter. 
  

  

  1 
  1 
  . 
  Diphyes 
  bipartita, 
  Costa. 
  

  

  The 
  common 
  Diphyid 
  of 
  the 
  Mediterranean 
  {Diphyes 
  

   Sieboldii, 
  Roll., 
  D. 
  gracilis, 
  Gregenb., 
  D. 
  acuminata, 
  Leuck.) 
  

   is 
  abundant 
  both 
  in 
  the 
  depths 
  and 
  at 
  the 
  surface 
  of 
  the 
  

   Atlantic 
  Ocean, 
  and 
  appeared, 
  with 
  the 
  Eudoxia 
  pertaining 
  

   to 
  it 
  {Eudoxia 
  campanula, 
  Leuck.), 
  throughout 
  the 
  whole 
  

   winter. 
  

  

  12. 
  Diphyes 
  serrata, 
  sp. 
  n. 
  

  

  Nectocalyces 
  more 
  slender 
  than 
  those 
  of 
  D. 
  bipartita, 
  with 
  

   strong 
  projecting 
  teeth 
  on 
  the 
  umbrellar 
  margin. 
  Ridges 
  on 
  

   the 
  dome 
  of 
  the 
  superior 
  nectocalyx 
  produced 
  into 
  wings. 
  

   Eudoxise 
  like 
  Eudoxia 
  campanula, 
  with 
  a 
  very 
  slender 
  long 
  

   bract. 
  

  

  Diphyes 
  serrata, 
  appeared 
  abundantly 
  during 
  the 
  whole 
  

   winter. 
  Its 
  Eudoxire 
  {Eudoxia 
  serrata, 
  m.) 
  are 
  easily 
  recog- 
  

   nized 
  by 
  the 
  slender 
  bract, 
  resembling 
  an 
  arrow-head. 
  They 
  

   attain 
  a 
  considerable 
  size 
  (as 
  much 
  as 
  8 
  millim.) 
  and 
  have 
  

   sulphur-yellow 
  cnidaria. 
  

  

  13. 
  Diphyopsis 
  campanulifera, 
  Q. 
  & 
  G. 
  

  

  The 
  large 
  and 
  beautiful 
  D. 
  campanulifera 
  is 
  the 
  commonest 
  

   Diphyid 
  occurring 
  at 
  the 
  Canaries 
  and 
  apparently 
  throughout 
  

   the 
  Atlantic 
  Ocean. 
  It 
  appeared 
  regularly 
  from 
  the 
  end 
  of 
  

   October 
  onwards, 
  and 
  1 
  observed 
  it 
  in 
  great 
  swarms 
  in 
  the 
  

   larger 
  currents 
  during 
  a 
  passage 
  from 
  Teneriffe 
  to 
  Palma 
  in 
  

   March. 
  It 
  is 
  possible 
  that 
  Diphyes 
  dispar 
  ,Cham. 
  &. 
  Eysenh.t, 
  

   is 
  identical 
  with 
  it 
  ; 
  under 
  this 
  latter 
  name 
  it 
  has 
  also 
  been 
  

   thoroughly 
  described 
  by 
  Huxley. 
  However, 
  a 
  careful 
  inves- 
  

   tigation 
  furnished 
  me 
  with 
  much 
  information 
  as 
  to 
  the 
  change 
  

   of 
  the 
  nectocalyces 
  and 
  the 
  occurrence 
  of 
  a 
  large 
  vascular 
  

   plate, 
  consisting 
  of 
  numerous 
  anastomoses, 
  at 
  the 
  lower 
  ven- 
  

   tral 
  section 
  of 
  the 
  nectocalyces. 
  Its 
  Eudoxia-^>w^.s' 
  become 
  

   developed 
  into 
  the 
  Eudoxia 
  Lessonii, 
  Huxley 
  J, 
  furnished 
  with 
  

  

  * 
  Sitzungsb. 
  Akad. 
  Berl. 
  xxxviii. 
  

  

  t 
  Nova 
  Ada 
  Ac. 
  Cses. 
  Leop.-Car. 
  x. 
  (1822), 
  p. 
  365, 
  pi. 
  xxxii. 
  fig. 
  4. 
  

  

  J 
  ' 
  The 
  Oceanic 
  Hydrozoa,' 
  p. 
  57, 
  pi. 
  iii. 
  fig. 
  (5. 
  

  

  