﻿456 
  

  

  PR0CEEDIX08 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  the 
  California 
  example 
  is 
  seen 
  to 
  be 
  somewhat 
  more 
  slender, 
  the 
  

   caudal 
  peduncle 
  is 
  narrower, 
  the 
  head 
  and 
  snout 
  are 
  shorter, 
  the 
  

   eye 
  smaller, 
  the 
  fins 
  shorter, 
  and 
  the 
  color 
  different, 
  lacking 
  entirely 
  

   the 
  peculiar 
  curved 
  bands 
  so 
  conspicuous 
  on 
  the 
  body 
  of 
  the 
  type 
  

   specimen. 
  

  

  The 
  measurable 
  differences 
  are 
  shown 
  in 
  the 
  appended 
  table. 
  

  

  Hawaiian 
  

   specimens. 
  

  

  Length 
  of 
  body 
  in 
  milliinoters 
  

  

  Length 
  head, 
  in 
  hundredths 
  of 
  length 
  

  

  Depth 
  body 
  

  

  Depth 
  caudal 
  peduncle 
  

  

  Length 
  snout 
  

  

  Diameter 
  eye 
  

  

  Interorbital 
  width 
  

  

  Distance 
  between 
  eye 
  and 
  top 
  of 
  head. 
  . 
  . 
  

  

  Between 
  gill-opening 
  and 
  back 
  

  

  Between 
  gill-opening 
  and 
  ventral 
  surface 
  

  

  Between 
  gill-opening 
  and 
  eye 
  

  

  Height 
  dorsal 
  

  

  Height 
  anal 
  

  

  Length 
  pectoral 
  

  

  Length 
  caudal 
  

  

  Dorsal 
  rays 
  

  

  Anal 
  rays 
  

  

  Pectoral 
  rays 
  

  

  Fully 
  developed 
  caudal 
  rays 
  

  

  470 
  

   .37 
  

   .515 
  

  

  101 
  

  

  .35 
  

  

  .32 
  

  

  .15 
  

  

  .13 
  

  

  . 
  0(15 
  

  

  .09 
  

  

  .045 
  

  

  .115 
  

  

  .18 
  

  

  .15 
  

  

  .215 
  

  

  .20 
  

  

  .15 
  

  

  .08 
  

   17 
  

   18 
  

   13 
  

   18 
  

  

  The 
  second 
  Hawaiian 
  example 
  was 
  obtained 
  in 
  the 
  Honolulu 
  

   market 
  by 
  Doctor 
  Jordan, 
  and 
  is 
  now 
  in 
  the 
  collection 
  of 
  the 
  Bureau 
  

   of 
  Fisheries. 
  (PI. 
  63, 
  fig. 
  2.) 
  It 
  is 
  a 
  young 
  individual, 
  measuring 
  

   about 
  108 
  millimeters 
  in 
  length, 
  ar^d 
  consequently 
  of 
  especial 
  value, 
  

   as 
  it 
  aids 
  in 
  illustrating 
  some 
  of 
  the 
  structural 
  changes 
  that 
  occur 
  

   with 
  advancing 
  age. 
  It 
  is 
  much 
  more 
  elongate 
  than 
  the 
  older 
  speci- 
  

   mens, 
  the 
  narrowness 
  of 
  the 
  body 
  being 
  most 
  e"\ddent 
  in 
  the 
  caudal 
  

   region. 
  The 
  base 
  of 
  the 
  caudal 
  fin 
  is 
  a 
  straight 
  oblique 
  line; 
  not 
  con- 
  

   vex 
  as 
  in 
  older 
  examples. 
  The 
  caudal 
  rays 
  are 
  not 
  fan-shaped,^ 
  but 
  

   are 
  branched 
  in 
  the 
  ordinary 
  way, 
  the 
  division 
  appearing 
  farther 
  from 
  

   the 
  base 
  than 
  is 
  usual 
  among 
  fishes. 
  The 
  length 
  of 
  the 
  caudal 
  

   fin 
  is 
  relatively 
  greater, 
  while 
  that 
  of 
  the 
  other 
  fins 
  is 
  less. 
  The 
  

   body 
  is 
  eveiywheie 
  silveiy, 
  very 
  dark 
  on 
  the 
  back. 
  On 
  the 
  body 
  

   behind 
  the 
  pectoral 
  are 
  about 
  15 
  more 
  or 
  less 
  distinct 
  dark 
  spots, 
  

   which 
  are 
  nearly 
  equal 
  in 
  size 
  to 
  the 
  eye. 
  There 
  are 
  no 
  bands 
  on 
  

   the 
  head. 
  

  

  The 
  Japanese 
  figure 
  ^ 
  is 
  a 
  splendid 
  painting, 
  and 
  although 
  it 
  

   omits 
  certain 
  slight 
  details 
  of 
  structure, 
  there 
  can 
  be 
  no 
  doubt 
  as 
  

   to 
  the 
  species 
  which 
  it 
  represents. 
  It 
  delineates 
  a 
  form 
  similar 
  

   to 
  that 
  of 
  the 
  others, 
  but 
  of 
  a 
  different 
  color. 
  The 
  plates 
  are 
  broadly 
  

   outlined 
  in 
  white, 
  except 
  m 
  certain 
  restricted 
  areas 
  where 
  they 
  are 
  

   narrowly 
  bordered 
  by 
  brown, 
  the 
  centers 
  being 
  everywhere 
  dark. 
  

  

  > 
  Jenkins, 
  Proc. 
  Cal. 
  Acad. 
  Sci., 
  ser. 
  2, 
  vol. 
  5, 
  1895, 
  p. 
  780, 
  fig. 
  3. 
  

  

  2 
  Through 
  the 
  coiu-tesy 
  of 
  Count 
  Date, 
  who 
  presented 
  Doctor 
  Jordan 
  with 
  a 
  copy 
  of 
  the 
  painting, 
  a 
  

   photograph 
  is 
  here 
  reproduced. 
  (PI. 
  63, 
  flg. 
  1.) 
  

  

  