﻿134 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  U.S.N.M. 
  No. 
  104297, 
  one 
  specimen, 
  from 
  Recife, 
  Pernambuco, 
  

   Brazil. 
  

  

  U.S.N.M. 
  Nos. 
  80765 
  and 
  80766, 
  two 
  paratypes, 
  from 
  Panama. 
  

  

  OPHIOSCION 
  PANAMENSIS, 
  new 
  species 
  

   FiGXJEE 
  8 
  

  

  Ophioscion 
  adustus 
  (in 
  part) 
  Meek 
  and 
  Hiujebrand, 
  Marine 
  fishes 
  of 
  Panama, 
  

   vol. 
  2, 
  p. 
  639, 
  1925 
  (Fox 
  Bay, 
  Colon, 
  Panama). 
  

  

  Holotype. 
  — 
  U.S.N.M. 
  No. 
  122612, 
  one 
  specimen, 
  52 
  mm. 
  in 
  standard 
  

   length, 
  collected 
  in 
  Fox 
  Bay, 
  Colon, 
  Panama, 
  January 
  27, 
  1912, 
  by 
  

   Meek 
  and 
  Hildebrand. 
  

  

  Paratypes. 
  — 
  U.S.N.M. 
  No. 
  81204, 
  three 
  specimens, 
  31.5 
  to 
  43 
  mm. 
  in 
  

   standard 
  length, 
  from 
  Fox 
  Bay, 
  Colon, 
  Panama, 
  January 
  5, 
  1911, 
  

   Meek 
  and 
  Hildebrand 
  ; 
  U.S.N.M. 
  No. 
  81205, 
  four 
  specimens, 
  23.3 
  to 
  

   30.5 
  mm.. 
  Fox 
  Bay, 
  Colon, 
  Panama, 
  March 
  31, 
  1911, 
  Meek 
  and 
  Hilde- 
  

   brand; 
  U.S.N.M. 
  No. 
  81207, 
  one 
  specimen, 
  33 
  mm., 
  from 
  Porto 
  Bello, 
  

   Panama, 
  March 
  17, 
  1912, 
  Meek 
  and 
  Hildebrand 
  ; 
  U.S.N.M. 
  No. 
  81206, 
  

   one 
  specimen, 
  42 
  mm., 
  collected 
  along 
  with 
  the 
  holotype 
  and 
  bearing 
  

   same 
  data; 
  U.S.N.M. 
  No. 
  128260, 
  one 
  specimen, 
  35.5 
  mm., 
  from 
  Fort 
  

   Sherman, 
  Canal 
  Zone, 
  Panama, 
  collected 
  March 
  3, 
  1937, 
  by 
  Dr. 
  S. 
  F. 
  

   Hildebrand. 
  

  

  Description. 
  — 
  Certain 
  measurements 
  were 
  made, 
  and 
  these 
  data, 
  

   recorded 
  below, 
  are 
  expressed 
  in 
  hundredths 
  of 
  the 
  standard 
  length, 
  

   first 
  for 
  the 
  holotype, 
  then 
  for 
  a 
  paratype 
  in 
  parentheses. 
  Stand- 
  

   ard 
  lengths 
  in 
  millimeters 
  52 
  (42). 
  

  

  Length 
  of 
  head, 
  33.3 
  (34.3) 
  ; 
  greatest 
  depth 
  of 
  body 
  32.7 
  (32.2) 
  ; 
  

   diameter 
  of 
  eye 
  7.30 
  (7.86) 
  ; 
  length 
  of 
  snout 
  9.80 
  (9.76) 
  ; 
  distance 
  from 
  

   front 
  of 
  upper 
  lip 
  to 
  rear 
  tip 
  of 
  maxillary 
  10.4 
  (11.4) 
  ; 
  least 
  preor- 
  

   bital 
  width 
  4.80 
  (4.76) 
  ; 
  postorbital 
  length 
  of 
  head 
  17.9 
  (19.0) 
  ; 
  width 
  

   of 
  interorbital 
  space 
  9.62 
  (10.2) 
  ; 
  length 
  of 
  caudal 
  peduncle 
  or 
  dis- 
  

   tance 
  from 
  base 
  of 
  last 
  anal 
  ray 
  to 
  midcaudal 
  fin 
  base 
  22.3 
  (23.1) 
  ; 
  

   least 
  depth 
  of 
  caudal 
  peduncle 
  11.2 
  (10.7) 
  ; 
  length 
  of 
  base 
  of 
  second 
  

   dorsal 
  fin 
  35.4 
  (35.7) 
  and 
  of 
  base 
  of 
  anal 
  fin 
  10.6 
  (11.9) 
  ; 
  longest 
  dorsal 
  

   spine 
  18.3 
  (16.4) 
  ; 
  longest 
  soft 
  ray 
  of 
  dorsal 
  fin 
  — 
  (7.2) 
  ; 
  longest 
  soft 
  

   ray 
  of 
  anal 
  fin 
  20.8 
  (18.6) 
  ; 
  length 
  of 
  second 
  anal 
  spine 
  18.8 
  (19.3) 
  ; 
  

   longest 
  ray 
  of 
  pectoral 
  fin 
  23.1 
  (22.4) 
  ; 
  longest 
  soft 
  ray 
  of 
  pelvic 
  21.7 
  

   (25.0) 
  and 
  of 
  pelvic 
  spine 
  12.1 
  (12.6) 
  ; 
  longest 
  midcaudal 
  fin 
  ray 
  30.0 
  

   (31.0) 
  ; 
  length 
  of 
  longest 
  gill 
  raker 
  2.11 
  (2.38) 
  ; 
  distance 
  from 
  snout 
  

   tip 
  to 
  dorsal 
  origin 
  38.3 
  (39.3) 
  and 
  to 
  anal 
  origin 
  71.9 
  (67.4) 
  ; 
  snout 
  

   to 
  pelvic 
  insertion 
  36.0 
  (35.6) 
  and 
  to 
  pectoral 
  insertion 
  34.6 
  (32.9). 
  

  

  The 
  following 
  counts 
  were 
  made, 
  respectively 
  : 
  Dorsal 
  rays 
  X-I, 
  20 
  

   (X-1, 
  21) 
  ; 
  anal 
  rays 
  II, 
  7 
  (II, 
  7) 
  ; 
  pectoral 
  fin 
  rays 
  ii, 
  17-ii, 
  17 
  (ii, 
  17-ii, 
  

   17) 
  ; 
  pelvics 
  always 
  I, 
  5 
  ; 
  scale 
  rows 
  above 
  lateral 
  line 
  51 
  (52) 
  and 
  pores 
  

   in 
  lateral 
  line 
  to 
  midcaudal 
  fin 
  base 
  50 
  (50) 
  ; 
  scales 
  from 
  dorsal 
  origin 
  

  

  