﻿A 
  Fish 
  luhose 
  existence 
  has 
  been 
  doubted. 
  75 
  

  

  filament 
  itself 
  are 
  dusky, 
  with 
  a 
  broad 
  margin 
  of 
  the 
  same 
  along 
  the 
  edge 
  of 
  the 
  fin 
  

   as 
  far 
  as 
  the 
  seventh 
  ray, 
  the 
  other 
  rays 
  being 
  merely 
  tipped 
  with 
  dusky, 
  while 
  

   the 
  rest 
  of 
  the 
  fin 
  is 
  of 
  a 
  pale 
  flesh 
  color. 
  Pectorals 
  and 
  ventrala 
  colorless. 
  Ante- 
  

   rior 
  margin 
  of 
  anal 
  greenish 
  dusky, 
  the 
  long 
  filament 
  of 
  the 
  same 
  color, 
  and 
  the 
  rest 
  

   of 
  the 
  fin 
  of 
  a 
  paler 
  hue 
  than 
  the 
  dorsal. 
  Upper 
  part 
  of 
  the 
  body 
  or 
  tail 
  just 
  behind 
  

   the 
  second 
  dorsal 
  darker 
  than 
  the 
  rest 
  of 
  the 
  body. 
  Tips 
  of 
  caudal 
  broadly 
  edged 
  

   with 
  dusky, 
  the 
  rest 
  of 
  the 
  fin 
  of 
  a 
  pale 
  amber. 
  The 
  occipital 
  region 
  and 
  the 
  jaws 
  

   of 
  a 
  pale 
  watery 
  pearl 
  color, 
  the 
  rest 
  of 
  the 
  head 
  strongly 
  iridescent. 
  Body 
  above 
  

   the 
  lateral 
  line 
  more 
  iridescent 
  than 
  below. 
  

  

  It 
  is 
  hardly 
  necessary 
  to 
  show 
  the 
  difference 
  between 
  this 
  fish 
  and 
  Argyreiosus 
  

   Vomer. 
  The 
  size 
  attained 
  by 
  the 
  Selene 
  is 
  almost 
  enough 
  to 
  draw 
  attention 
  to 
  the 
  

   minor 
  specific 
  distinctions. 
  The 
  first 
  dorsal 
  of 
  the 
  Selene 
  is 
  short, 
  as 
  well 
  as 
  the 
  

   veutrals, 
  while 
  the 
  second 
  dorsal 
  and 
  anal 
  have 
  a 
  long 
  filamentous 
  continuation. 
  In 
  

   A. 
  Vomer 
  the 
  first 
  dorsal 
  has 
  a 
  very 
  long 
  filamentous 
  ray, 
  and 
  the 
  five 
  soft 
  rays 
  of 
  

   the 
  ventrals 
  are 
  excessively 
  long 
  ; 
  the 
  second 
  dorsal 
  and 
  anal 
  being 
  long, 
  but 
  not 
  

   filamentous, 
  and 
  not 
  reaching 
  to 
  the 
  caudal 
  lobes. 
  The 
  caudal 
  lobes 
  ol 
  Selene 
  are 
  

   much 
  longer 
  than 
  those 
  of 
  A. 
  Vomer, 
  the 
  pectorals 
  rather 
  longer 
  also. 
  The 
  profile 
  

   of 
  Selene 
  is 
  much 
  more 
  vertical 
  than 
  that 
  of 
  A. 
  Vomer, 
  and 
  the 
  angles 
  of 
  the 
  out- 
  

   line 
  more 
  sharply 
  defined. 
  In 
  color, 
  the 
  principal 
  difference 
  is 
  in 
  the 
  ventrals, 
  

   which 
  are 
  transparent 
  and 
  colorless 
  in 
  Selene, 
  but 
  nearly 
  black 
  in 
  A. 
  Vomer, 
  and 
  in 
  

   the 
  broad 
  indistinct 
  bands 
  on 
  Selene, 
  which 
  are 
  not 
  noticeable 
  in 
  A. 
  Vomer. 
  The 
  

   numbers 
  of 
  the 
  fin 
  rays 
  are 
  almost 
  identical 
  in 
  the 
  two 
  species. 
  

  

  The 
  distance 
  from 
  the 
  snout 
  or 
  tip 
  of 
  the 
  upper 
  jaw 
  to 
  the 
  centre 
  of 
  the 
  margin 
  

   of 
  the 
  caudal 
  opposite 
  the 
  termination 
  of 
  the 
  lateral 
  line, 
  beir^ 
  measured 
  and 
  divided 
  

   into 
  one 
  hundred 
  parts, 
  will 
  give 
  the 
  following 
  proportions, 
  which 
  have 
  been 
  verified 
  

   and 
  averaged 
  on 
  the 
  three 
  specimens. 
  These 
  were 
  respectively 
  6^, 
  6f 
  , 
  and 
  7^ 
  

   inches 
  long, 
  measured 
  as 
  above 
  : 
  

  

  Snout 
  to 
  margin 
  of 
  caudal 
  ------- 
  ]00. 
  

  

  Height 
  of 
  body 
  from 
  base 
  of 
  first 
  dorsal 
  to 
  ventrals 
  - 
  - 
  - 
  67. 
  

  

  Thickness 
  of 
  body 
  at 
  base 
  of 
  pectorals 
  ----- 
  13. 
  

  

  Snout 
  to 
  eye 
  ■---.....- 
  21.5 
  

  

  Diameter 
  of 
  eye 
  --------- 
  7.5 
  

  

  Eye 
  from 
  profile 
  -. 
  6. 
  

  

  Snout 
  to 
  tip 
  of 
  maxillaries 
  ------- 
  12. 
  

  

  Posterior 
  tip 
  of 
  opercle 
  to 
  profile 
  ------ 
  22.5 
  

  

  Snout 
  to 
  base 
  of 
  pectorals 
  ------- 
  39. 
  

  

  Longest 
  ray 
  of 
  pectorals 
  along 
  the 
  curve 
  - 
  - 
  , 
  . 
  39, 
  

  

  Snout 
  to 
  base 
  of 
  ventrals 
  ------- 
  35. 
  

  

  Longest 
  ray 
  of 
  ventrals 
  --.._.- 
  g. 
  

  

  Snout 
  to 
  base 
  of 
  first 
  dorsal 
  ------- 
  63.5 
  

  

  Second 
  spine 
  of 
  first 
  dorsal, 
  long 
  ------ 
  7. 
  

  

  Base 
  of 
  first 
  to 
  base 
  of 
  second 
  dorsal 
  - 
  - 
  - 
  . 
  . 
  jg^ 
  

  

  Base 
  of 
  second 
  dorsal, 
  long 
  ------- 
  44. 
  

  

  Longest 
  ray 
  of 
  second 
  dorsal 
  -.-... 
  67.-78. 
  

  

  Last 
  ray 
  of 
  second 
  dorsal, 
  long 
  ------ 
  4, 
  

  

  Snout 
  to 
  base 
  of 
  anal 
  -------- 
  59. 
  

  

  Base 
  of 
  anal, 
  long 
  --..-... 
  445 
  

  

  