﻿54 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.96 
  

  

  tinctly 
  fleshy 
  pad, 
  posterior 
  margin 
  free 
  and 
  joined 
  opposite 
  at- 
  

   tachment 
  of 
  gill 
  membranes 
  {Gobiesox 
  Lacepede). 
  

   21ffi. 
  Disk 
  much 
  greater 
  than 
  distance 
  from 
  tip 
  of 
  chin 
  to 
  front 
  of 
  disk. 
  

   22a. 
  Origin 
  of 
  dorsal 
  fin 
  equidistant 
  between 
  midcaudal 
  fin 
  base 
  and 
  

   rear 
  one-third 
  of 
  pectoral 
  fin 
  rays 
  or 
  a 
  little 
  behind 
  them 
  ; 
  anal 
  

   origin 
  under 
  fifth 
  dorsal 
  fin 
  ray, 
  behind 
  middle 
  of 
  base 
  of 
  rays 
  

   of 
  that 
  fin; 
  teeth 
  of 
  lower 
  jaw 
  not 
  projecting 
  forward 
  in 
  a 
  

   nearly 
  horizontal 
  position 
  but 
  directed 
  nearly 
  straight 
  up- 
  

   ward 
  in 
  adults, 
  a 
  little 
  more 
  oblique 
  in 
  young 
  specimens; 
  

   head 
  2.2 
  to 
  2.7, 
  disk 
  2.6 
  to 
  3.3, 
  and 
  depth 
  4 
  to 
  5.5, 
  all 
  in 
  

   standard 
  length 
  ; 
  dorsal 
  rays 
  8 
  or 
  9, 
  anal 
  5 
  to 
  7, 
  i)ectoral 
  18 
  

   to 
  21 
  ; 
  anus 
  equidistant 
  between 
  anal 
  origin 
  and 
  rear 
  margin 
  

   of 
  disk 
  or 
  a 
  little 
  nearer 
  to 
  anal 
  origin 
  ; 
  eye 
  1% 
  (young) 
  to 
  5 
  

   (adults) 
  times 
  in 
  interorbital 
  space. 
  

   23a. 
  Length 
  of 
  disk 
  when 
  measured 
  from 
  its 
  rear 
  margin 
  reaches 
  

   nearly 
  to 
  end 
  of 
  anal 
  fin 
  usually 
  from 
  midbase 
  to 
  base 
  of 
  

   last 
  anal 
  ray 
  ; 
  small 
  dark 
  spot 
  often 
  present 
  near 
  front 
  of 
  

   base 
  of 
  dorsal 
  fin 
  (Costa 
  Rica, 
  West 
  Indies, 
  to 
  Brazil). 
  

  

  Gobiesox 
  cephalus 
  Lacepede 
  

  

  23&. 
  Length 
  of 
  disk 
  when 
  measured 
  from 
  its 
  rear 
  margin 
  reaches 
  

  

  only 
  to 
  base 
  of 
  first 
  or 
  second 
  anal 
  fin 
  ray 
  ; 
  front 
  of 
  dorsal 
  

  

  with 
  a 
  large 
  dark 
  blotch 
  not 
  at 
  base 
  of 
  fin 
  (Cocos 
  Island). 
  

  

  Gobiesox 
  fulvus 
  Meek 
  

  

  226. 
  Dorsal 
  origin 
  equidistant 
  between 
  midcaudal 
  fin 
  base 
  and 
  upper 
  

  

  base 
  of 
  pectoral 
  fin 
  or 
  rear 
  of 
  head 
  ; 
  dorsal 
  rays 
  10 
  or 
  11, 
  anal 
  

  

  8, 
  pectoral 
  19 
  to 
  21 
  ; 
  gill 
  membrane 
  attached 
  opposite 
  fourth 
  

  

  to 
  seventh 
  upper 
  pectoral 
  fin 
  rays 
  ; 
  interorbital 
  3% 
  to 
  4i/^ 
  in 
  

  

  head 
  ; 
  distance 
  from 
  base 
  of 
  last 
  dorsal 
  ray 
  to 
  midcaudal 
  base 
  

  

  2% 
  to 
  Sli 
  times 
  in 
  distance 
  from 
  dorsal 
  origin 
  to 
  rear 
  of 
  head 
  ; 
  

  

  anus 
  equidistant 
  between 
  or 
  closer 
  to 
  anal 
  origin 
  than 
  rear 
  

  

  margin 
  of 
  disk 
  ; 
  fleshy 
  pad 
  on 
  pectoral 
  fin 
  base 
  with 
  posterior 
  

  

  margin 
  free 
  all 
  way 
  up 
  to 
  attachment 
  of 
  gill 
  membrane 
  ; 
  anal 
  

  

  origin 
  under 
  fifth 
  dorsal 
  ray 
  ; 
  depth 
  of 
  caudal 
  peduncle 
  equals 
  

  

  its 
  length. 
  

  

  24a. 
  Eye 
  IV2 
  to 
  2 
  in 
  interorbital 
  space 
  (Texas; 
  British 
  Honduras; 
  

  

  Bahamas 
  and 
  West 
  Indies). 
  Gobiesox 
  punctulatus 
  (Poey) 
  

  

  246. 
  Eye 
  0.9 
  to 
  1.1 
  in 
  interorbital 
  space 
  (Pacific-Mazatlan). 
  

  

  Gobiesox 
  adustus 
  Jordan 
  and 
  Gilbert 
  

   216. 
  Disk 
  about 
  equal 
  to 
  distance 
  from 
  tip 
  of 
  chin 
  to 
  front 
  of 
  disk; 
  

   pelvic 
  fins 
  attached 
  about 
  one-third 
  way 
  out 
  pectoral 
  fin 
  rays; 
  

   length 
  of 
  disk 
  equal 
  to 
  distance 
  from 
  rear 
  margin 
  of 
  disk 
  to 
  

   anus 
  or 
  1% 
  times 
  from 
  disk 
  to 
  anal 
  origin; 
  head 
  2.9, 
  disk 
  3.8 
  

   to 
  4.2, 
  depth 
  5 
  or 
  6, 
  width 
  of 
  head 
  3%, 
  all 
  in 
  standard 
  length 
  ; 
  

   eye 
  1% 
  to 
  2 
  in 
  interorbital 
  space; 
  interorbital 
  3^ 
  and 
  disk 
  

   1% 
  in 
  head 
  ; 
  dorsal 
  origin 
  equidistant 
  from 
  midcaudal 
  fin 
  base 
  

   and 
  middle 
  of 
  length 
  of 
  pectoral 
  fin 
  ; 
  distance 
  from 
  last 
  dorsal 
  

   ray 
  to 
  midcaudal 
  fin 
  base 
  4 
  times 
  in 
  distance 
  from 
  rear 
  of 
  head 
  

   to 
  dorsal 
  origin 
  ; 
  anus 
  closer 
  to 
  anal 
  origin 
  than 
  rear 
  margin 
  

   of 
  disk 
  ; 
  least 
  depth 
  of 
  caudal 
  peduncle 
  greater 
  than 
  length 
  of 
  

   caudal 
  peduncle 
  from 
  base 
  of 
  last 
  anal 
  ray 
  to 
  midcaudal 
  fin 
  

   base; 
  opercular 
  spine 
  not 
  well 
  developed; 
  anal 
  origin 
  under 
  

   base 
  of 
  about 
  the 
  sixth 
  dorsal 
  ray 
  ; 
  dorsal 
  rays 
  11 
  or 
  12 
  ; 
  anal 
  

   7 
  or 
  8; 
  pectoral 
  18 
  to 
  20 
  (Gulf 
  of 
  California). 
  

  

  Gobiesox 
  funebris 
  Gilbert 
  

  

  