﻿NO. 
  1946. 
  PACIFIC 
  MEDUSAE 
  AND 
  SIPHONOPHORAE—BIOELOW. 
  105 
  

  

  proves 
  to 
  be 
  well 
  founded. 
  This 
  tentative 
  conclusion 
  (of 
  course 
  it 
  

   may 
  have 
  to 
  be 
  modified) 
  is 
  based 
  on 
  the 
  occurrence 
  of 
  Pantachogon 
  

   Tmeckeli 
  and 
  of 
  Crossota 
  brunnea 
  var. 
  norvegica. 
  If 
  these 
  species 
  had 
  

   been 
  represented 
  by 
  only 
  a 
  few 
  scattered 
  captures, 
  we 
  might 
  well 
  hesi- 
  

   tate 
  to 
  use 
  them 
  as 
  instances 
  of 
  geographic 
  range; 
  but 
  both 
  were 
  taken 
  

   in 
  considerable 
  numbers 
  at 
  10 
  stations 
  each, 
  and 
  the 
  regularity 
  of 
  their 
  

   distribution 
  is 
  striking 
  when 
  we 
  observe 
  that 
  only 
  14 
  hauls 
  with 
  the 
  

   intermediate 
  net 
  from 
  300 
  fathoms 
  were 
  made 
  south 
  of 
  the 
  Shumagin 
  

   Islands, 
  in 
  Bering 
  Sea 
  and 
  in 
  the 
  Sea 
  of 
  Okhotsk, 
  in 
  11 
  of 
  which 
  

   one 
  or 
  other 
  of 
  the 
  two 
  species 
  was 
  taken 
  (in 
  six 
  hauls 
  the 
  two 
  were 
  

   taken 
  together; 
  each 
  was 
  likewise 
  taken 
  in 
  the 
  trawl). 
  On 
  the 
  

   other 
  hand, 
  both 
  were 
  conspicuously 
  absent 
  in 
  the 
  intermediate 
  

   hauls 
  made 
  in 
  Japanese 
  waters, 
  nor 
  are 
  they 
  represented 
  in 
  the 
  

   extensive 
  collections 
  made 
  by 
  the 
  Albatross 
  off 
  the 
  coasts 
  of 
  Cali- 
  

   fornia, 
  British 
  Columbia, 
  and 
  southern 
  Alaska, 
  which 
  have 
  passed 
  

   through 
  my 
  hands. 
  In 
  the 
  Atlantic, 
  too, 
  these 
  two 
  species 
  have 
  

   been 
  taken 
  only 
  at 
  far 
  northern 
  stations, 
  though 
  the 
  expeditions 
  

   of 
  the 
  National, 
  of 
  the 
  Valdivia, 
  and 
  of 
  the 
  Prince 
  of 
  Monaco 
  

   might 
  have 
  been 
  expected 
  to 
  reveal 
  them 
  in 
  the 
  warmer 
  parts 
  of 
  

   the 
  Atlantic 
  were 
  they 
  as 
  common 
  there 
  as 
  in 
  Bering 
  Sea, 
  or 
  as 
  are 
  

   such 
  genera 
  as 
  Halicreas, 
  PeripJiylla, 
  and 
  Atolla. 
  And 
  the 
  fact 
  that 
  

   P. 
  TmecJceli 
  is 
  represented 
  by 
  a 
  distinct, 
  though 
  allied, 
  species, 
  scotti, 
  in 
  

   the 
  Antarctic 
  and 
  C. 
  brunnea 
  var. 
  norvegica 
  by 
  a 
  recognizable 
  variety 
  in 
  

   tropical 
  regions, 
  is 
  also 
  strong 
  evidence 
  that 
  the 
  two 
  are 
  restricted 
  to 
  

   northern 
  regions. 
  The 
  collection 
  made 
  by 
  the 
  Michael 
  Sars, 
  now 
  

   being 
  studied 
  by 
  Doctor 
  Broch, 
  may 
  throw 
  further 
  light 
  on 
  this 
  sub- 
  

   ject, 
  but 
  we 
  are 
  probably 
  safe 
  in 
  assuming 
  that 
  both 
  Pantachogon 
  

   and 
  Crossota 
  entered 
  Bering 
  Sea 
  from 
  the 
  north. 
  

  

  Botrynema 
  ellinorae 
  is 
  likewise 
  known 
  only 
  from 
  "intermediate" 
  

   hauls 
  in 
  Bering 
  Sea 
  and 
  in 
  the 
  Arctic 
  Ocean; 
  but 
  the 
  records 
  of 
  its 
  

   captures 
  are 
  too 
  few 
  to 
  warrant 
  the 
  assumption 
  that 
  it 
  is 
  confined 
  to 
  

   high 
  latitudes, 
  while 
  the 
  fact 
  that 
  its 
  close 
  ally, 
  brucei, 
  is 
  Antarctic, 
  

   suggests 
  that 
  the 
  genus, 
  at 
  least, 
  wiU 
  be 
  found 
  in 
  the 
  deeper 
  water 
  

   layers 
  of 
  low 
  latitudes. 
  It 
  is 
  not 
  improbable 
  that 
  the 
  two 
  new 
  

   "intermediate" 
  species, 
  Pandea 
  rubra 
  and 
  Meator 
  rubatra, 
  may 
  

   belong 
  to 
  the 
  same 
  category, 
  for 
  their 
  occurrence 
  in 
  the 
  northwestern 
  

   Pacific 
  closely 
  parallels 
  that 
  of 
  Pantachogon 
  and 
  Crossota; 
  but, 
  as 
  

   pointed 
  out 
  above, 
  it 
  is 
  best 
  to 
  suspend 
  judgment 
  on 
  this 
  point 
  for 
  

   the 
  present. 
  

  

  We 
  can 
  not 
  trace 
  the 
  cold 
  water 
  medusae 
  southward 
  along 
  the 
  

   west 
  and 
  east 
  sides 
  of 
  the 
  northwestern 
  Pacific 
  as 
  well 
  as 
  we 
  could 
  

   wish, 
  because 
  we 
  know 
  very 
  little 
  about 
  the 
  medusae 
  of 
  the 
  Ameri- 
  

   can 
  coast 
  between 
  the 
  Aleutians 
  and 
  Puget 
  Sound. 
  But 
  the 
  collec- 
  

   tions 
  from 
  the 
  latter 
  region, 
  recorded 
  by 
  A. 
  Agassiz 
  (1865) 
  and 
  by 
  

   Murbach 
  and 
  Shearer 
  (1903), 
  and 
  a 
  series 
  in 
  the 
  Museum 
  of 
  Com- 
  

  

  