﻿32 
  COLLECTIONS 
  FROM 
  MULANTJSIA. 
  

  

  3. 
  Branchiostoma 
  belcheri. 
  

  

  Amphioxus 
  belcheri, 
  Gray, 
  P. 
  Z, 
  S. 
  1847, 
  p. 
  35. 
  

   Brancliiostoma 
  belcheri, 
  Gray, 
  Chondropt. 
  p. 
  150. 
  

  

  Myocommas 
  37-1-14 
  + 
  13=64 
  (Borneo). 
  

  

  37 
  + 
  14 
  + 
  14 
  = 
  05 
  (Prince 
  of 
  Wales 
  Isl.). 
  

  

  This 
  Lancelot 
  is 
  very 
  similar 
  to, 
  biit 
  rather 
  more 
  elongate 
  than, 
  

   B. 
  lanceolatmn, 
  and 
  the 
  fins, 
  instead 
  of 
  being 
  dilated 
  behind, 
  gradually 
  

   decrease 
  in 
  width 
  towards 
  the 
  extremity 
  of 
  the 
  tail. 
  

  

  The 
  specimens 
  were 
  collected 
  partly 
  by 
  Sir 
  E. 
  Belcher 
  during 
  the 
  

   cruise 
  of 
  H.M.S. 
  ' 
  Samarang 
  ' 
  on 
  the 
  coast 
  of 
  Borneo, 
  partly 
  by 
  

   Dr. 
  Coppinger 
  at 
  Prince 
  of 
  Wales 
  Island, 
  Torres 
  Straits. 
  

  

  4. 
  Branchiostoma 
  caribaeum. 
  

   Sundemllf 
  I. 
  c. 
  1853, 
  p. 
  12. 
  

  

  Myocommas 
  37 
  + 
  14 
  + 
  9 
  = 
  60 
  (Sundevall). 
  

   37 
  + 
  14 
  + 
  9 
  = 
  60. 
  

   37 
  + 
  13+9=59. 
  

  

  Distinguished 
  from 
  B. 
  belcheri 
  and 
  lanceolatum 
  by 
  the 
  shortness 
  

   of 
  its 
  tail 
  and 
  by 
  the 
  attenuated 
  form 
  of 
  the 
  extremities 
  of 
  the 
  body. 
  

  

  St. 
  Thomas 
  ; 
  Rio 
  de 
  Janeiro 
  ; 
  mouth 
  of 
  the 
  Plate 
  river. 
  

  

  I 
  am 
  indebted 
  for 
  specimens 
  of 
  this 
  species 
  to 
  the 
  kindness 
  of 
  

   Prof. 
  Ed. 
  Van 
  Beneden, 
  who 
  obtained 
  them 
  in 
  great 
  numbers 
  

   in 
  the 
  Bay 
  of 
  Botafogo 
  ; 
  they 
  are 
  the 
  same 
  species 
  on 
  wliich 
  Moreau 
  

   made 
  his 
  researches 
  on 
  the 
  structure 
  of 
  the 
  notochord 
  (Bull. 
  Ac. 
  

   Roy. 
  Belg. 
  1875, 
  p. 
  312). 
  The 
  name 
  of 
  Amphioxus 
  mulleri 
  (Kroyer, 
  

   MS.) 
  was 
  adopted 
  for 
  them 
  ; 
  but, 
  as 
  this 
  has 
  never 
  been 
  described, 
  

   it 
  is 
  doubtful 
  W'hether 
  the 
  name 
  was 
  intended 
  for 
  this 
  or 
  some 
  

   other 
  species. 
  

  

  5. 
  Branchiostoma 
  lanceolatum 
  {Fall.). 
  

  

  Myocommas 
  35 
  + 
  12+12=59 
  (Polperro). 
  

  

  36 
  + 
  14 
  + 
  11 
  = 
  61 
  (Scandin., 
  Sundevall). 
  

   34 
  + 
  13 
  + 
  13=60 
  (Jv^aples). 
  

   35+12+13=60 
  (Naples)*. 
  

  

  Coasts 
  of 
  Europe 
  ; 
  Atlantic 
  coasts 
  of 
  North 
  America. 
  

  

  6. 
  Branchiostoma 
  cultellum. 
  

  

  Epigonichthys 
  cultellus, 
  Peters, 
  Berl. 
  MB. 
  1876, 
  p. 
  327 
  (c. 
  fig.). 
  

  

  Myocommas 
  32 
  + 
  10 
  + 
  10 
  = 
  52, 
  or 
  

   31 
  + 
  11 
  + 
  10=52. 
  

  

  Anterior 
  part 
  of 
  the 
  dorsal 
  fi.n 
  high 
  ; 
  fin 
  between 
  branchial 
  porus 
  

  

  * 
  I 
  take 
  this 
  opportunity 
  of 
  correcting 
  an 
  error 
  on 
  p. 
  03 
  of 
  ' 
  Studj 
  of 
  

   Fishes,' 
  where 
  in 
  fig. 
  28 
  the 
  letters 
  b 
  and 
  c 
  have 
  inadrertentlv 
  been 
  reversed. 
  

  

  