﻿NO. 
  1946. 
  PACIFTG 
  MEDUSAE 
  AND 
  8IPH0N0PH0RAE—BI0EL0W. 
  55 
  

  

  the 
  "heart-shaped," 
  a 
  fact 
  which 
  I 
  have 
  been 
  able 
  to 
  corroborate 
  

   on 
  the 
  eastern 
  Pacific 
  series. 
  Therefore 
  all 
  Liriopes 
  with 
  triangular 
  

   or 
  heart-shaped 
  gonads, 
  which 
  may 
  finally 
  become 
  pentagonal, 
  are 
  

   best 
  imited 
  in 
  one 
  species. 
  Hartlaub 
  (1909&), 
  it 
  is 
  true, 
  recognizes 
  

   a 
  second 
  species 
  with 
  triangular 
  gonads, 
  under 
  the 
  nsime 
  L.haeckeU 
  

   Gotte, 
  but 
  neither 
  of 
  the 
  characters 
  by 
  which 
  he 
  characterizes 
  it, 
  

   i. 
  e., 
  long 
  peduncle, 
  and 
  gonads 
  close 
  to 
  the 
  circular 
  canal, 
  seem 
  to 
  

   deserve 
  the 
  importance 
  he 
  gives 
  them, 
  because 
  the 
  fu*st 
  is 
  subject 
  to 
  

   great 
  individual 
  variation 
  (at 
  least 
  in 
  preserved 
  series), 
  and 
  the 
  second 
  

   is 
  probably 
  a 
  growth 
  character. 
  

  

  My 
  use 
  of 
  the 
  name 
  tetraphylla, 
  instead 
  of 
  rosacea, 
  for 
  the 
  species 
  

   ^\'ith 
  angular 
  gonads, 
  is 
  warranted, 
  I 
  believe, 
  by 
  the 
  fact 
  that 
  the 
  

   figure 
  of 
  the 
  former, 
  the 
  oldest 
  Liriope 
  (Chamisso 
  and 
  Eysenhardt 
  

   (1821, 
  pi. 
  27, 
  fig. 
  2) 
  has 
  distinctly 
  triangular 
  gonads, 
  the 
  outline 
  being 
  

   fully 
  as 
  pronounced 
  as 
  it 
  is 
  in 
  the 
  Eschscholtz 
  figm'e 
  of 
  rosacea 
  (1829, 
  

   pi. 
  11, 
  fig. 
  2). 
  It 
  is 
  therefore 
  incorrect 
  to 
  use 
  tetraphylla 
  for 
  a 
  

   Liriope, 
  the 
  distinguishing 
  character 
  of 
  which 
  is 
  that 
  its 
  gonads 
  are 
  

   not 
  triangular. 
  

  

  Tins 
  leaves 
  the 
  Indo-Pacific 
  form 
  with 
  oval 
  gonads, 
  which 
  both 
  

   Maas 
  (1905) 
  and 
  I 
  (1909a) 
  have 
  studied, 
  mthout 
  a 
  name; 
  and 
  I 
  am 
  

   content 
  to 
  let 
  it 
  remain 
  so 
  until 
  some 
  student 
  can 
  determine 
  its 
  rela- 
  

   tionship 
  to 
  the 
  numerous 
  Atlantic 
  "species" 
  of 
  similar 
  character, 
  

   with 
  some 
  of 
  which 
  it 
  is 
  undoubtedly 
  identical. 
  

  

  LIRIOPE 
  TETRAPHYLLA 
  (Chamisso 
  and 
  Eysenhardt). 
  

   Geryonia 
  tetraphylla 
  Chamisso 
  and 
  Eysenhardt, 
  1821, 
  p. 
  357, 
  pi. 
  27, 
  fig. 
  2. 
  

  

  (For 
  synonymy, 
  see 
  Bigelow, 
  1909a. 
  p. 
  112, 
  with 
  the 
  exception 
  that 
  L. 
  tetraphylla 
  

   Maas 
  "was 
  wrongly 
  included, 
  as 
  pointed 
  out 
  above.) 
  

  

  Station 
  4827, 
  surface; 
  19 
  specimens, 
  2-7 
  mm. 
  in 
  diameter. 
  

  

  Station 
  4864, 
  surface; 
  4 
  specimens, 
  2-7 
  mm. 
  in 
  diameter. 
  

  

  Station 
  4889, 
  surface; 
  15 
  specimens, 
  4-10 
  mm. 
  in 
  diameter. 
  

  

  Station 
  4920, 
  300-0 
  fathoms; 
  5 
  specimens, 
  8-15 
  mm. 
  in 
  diameter. 
  

  

  Station 
  4927, 
  surface; 
  7 
  specimens, 
  6-12 
  mm. 
  in 
  diameter. 
  

  

  Station 
  4955, 
  surface; 
  about 
  20 
  specimens. 
  

  

  Station 
  4978, 
  surface; 
  9 
  specimens. 
  

  

  Station 
  5081, 
  surface; 
  2 
  specimens, 
  13 
  and 
  16 
  mm. 
  in 
  diameter. 
  

  

  The 
  series, 
  which 
  as 
  a 
  whole 
  is 
  in 
  good 
  condition, 
  is 
  of 
  interest 
  as 
  

   illustrating 
  the 
  variability 
  of 
  the 
  species 
  and 
  the 
  impossibility 
  of 
  draw- 
  

   ing 
  any 
  exact 
  parallel 
  between 
  gonad-form 
  and 
  general 
  size. 
  Among 
  

   the 
  larger 
  ones 
  both 
  triangular 
  gonads 
  and 
  pentagonal 
  ones, 
  in 
  con- 
  

   tact 
  with 
  one 
  another 
  and 
  consequently 
  truncated, 
  are 
  to 
  be 
  seen. 
  

   One 
  specimen 
  of 
  12 
  mm. 
  has 
  three 
  pentagonal, 
  one 
  triangular. 
  All 
  of 
  

   the 
  specimens 
  have 
  gonads, 
  as 
  might 
  be 
  expected, 
  for 
  these 
  organs 
  

   appear 
  when 
  a 
  diameter 
  of 
  3-4 
  mm. 
  is 
  reached 
  (Maas, 
  1909) 
  ; 
  and 
  they 
  

  

  