﻿WEST 
  INDIAN 
  FISHES 
  OF 
  GENUS 
  FUNDULUS 
  — 
  RIVAS 
  219 
  

  

  3.0; 
  2.7 
  to 
  2.9) 
  in 
  standard 
  length, 
  its 
  greatest 
  width 
  1.0 
  (1.0 
  or 
  1.1; 
  

   1.0 
  or 
  1.1) 
  in 
  length 
  of 
  caudal 
  peduncle. 
  Origin 
  of 
  dorsal 
  fin 
  to 
  tip 
  of 
  

   snout 
  1.5 
  (1.4 
  or 
  1.5; 
  1.4 
  or 
  1.5) 
  in 
  standard 
  length. 
  Origin 
  of 
  dorsal 
  

   fin 
  to 
  caudal 
  base 
  2.8 
  (2.6 
  to 
  2.9 
  ; 
  2.6 
  to 
  2.8) 
  in 
  standard 
  length. 
  Origin 
  

   of 
  anal 
  fin 
  to 
  mandible 
  tip, 
  1.4 
  ( 
  1.3 
  or 
  1.4 
  ; 
  1.3 
  or 
  1.4) 
  in 
  standard 
  length. 
  

   Origin 
  of 
  anal 
  fin 
  to 
  caudal 
  base 
  2.9 
  (2.8 
  to 
  3.0 
  ; 
  2.9 
  or 
  3.0) 
  in 
  standard 
  

   length. 
  Insertion 
  of 
  pelvic 
  fin 
  to 
  anus 
  2.5 
  (2.5 
  to 
  2.9; 
  2.7 
  to 
  3.0) 
  in 
  

   head. 
  Distance 
  between 
  origins 
  of 
  dorsal 
  and 
  anal 
  fins 
  1.2 
  (1.2 
  or 
  1.3 
  ; 
  

   1.2 
  or 
  1.3) 
  in 
  head. 
  Length 
  of 
  caudal 
  peduncle 
  4.5 
  (4.1 
  to 
  4.5 
  ; 
  4.1 
  to 
  

   4.4) 
  in 
  standard 
  length, 
  1.5 
  (1.3 
  to 
  1.5; 
  1.4 
  to 
  1.6) 
  in 
  head, 
  3.0 
  (2.7 
  to 
  

   3.0; 
  2.7 
  to 
  2.9) 
  in 
  predorsal 
  length; 
  its 
  least 
  depth 
  2.0 
  (2.0 
  to 
  2.2; 
  1.9 
  

   to 
  2.1) 
  in 
  head; 
  1.3 
  (1.2 
  to 
  1.4; 
  1.1 
  to 
  1.3) 
  in 
  its 
  length. 
  Horizontal 
  

   diameter 
  of 
  orbit 
  4.3 
  (3.7 
  to 
  4.4; 
  4.0 
  to 
  4.4) 
  in 
  head, 
  1.9 
  (1.5 
  to 
  1.9; 
  

   1.7 
  to 
  2.0) 
  in 
  interorbital, 
  1.9 
  (1.5 
  to 
  1.9 
  ; 
  1.7 
  to 
  2.0) 
  in 
  postorbital. 
  In- 
  

   terorbital 
  2.4 
  (2.2 
  to 
  2.4; 
  2.1 
  to 
  2.3) 
  in 
  head, 
  1.5 
  (1.5 
  or 
  1.6; 
  1.4 
  to 
  1.6) 
  

   in 
  length 
  of 
  caudal 
  peduncle. 
  Snout 
  3.0 
  (2.9 
  to 
  3.2 
  ; 
  3.0 
  or 
  3.1) 
  in 
  head. 
  

   Width 
  of 
  mouth 
  2.7 
  (2.6 
  to 
  3.0; 
  2.7 
  or 
  2.8) 
  in 
  head, 
  1.1 
  (1.1 
  or 
  1.2; 
  1.1 
  

   or 
  1.2) 
  in 
  interorbital. 
  

  

  Dorsal 
  fin 
  1.4 
  (1.3 
  to 
  1.7 
  ; 
  1.2 
  to 
  1.5) 
  in 
  head 
  ; 
  anal 
  1.6 
  (1.6 
  to 
  1.9 
  ; 
  1.5 
  

   to 
  1.7) 
  ; 
  pectoral 
  1.9 
  (1.8 
  to 
  2.0; 
  1.8 
  to 
  2.1) 
  ; 
  pelvic 
  3.0 
  (2.8 
  to 
  3.0; 
  2.7 
  

   to 
  3.0) 
  ; 
  middle 
  caudal 
  rays 
  1.3 
  (1.3 
  or 
  1.4 
  ; 
  1.3 
  or 
  1.4) 
  . 
  

  

  Dorsal 
  rays 
  11 
  (10 
  or 
  11, 
  usually 
  11; 
  10 
  to 
  12) 
  ; 
  anal 
  10 
  (9 
  or 
  

   10, 
  usually 
  10; 
  9 
  or 
  10, 
  usually 
  10) 
  ; 
  pectoral 
  16 
  (16 
  to 
  18, 
  usually 
  17; 
  

   17 
  or 
  18, 
  usually 
  17) 
  ; 
  pelvic 
  6 
  ; 
  branched 
  caudal 
  16 
  (16 
  to 
  18 
  ; 
  16 
  to 
  18) 
  . 
  

   Scales 
  in 
  32 
  (32 
  or 
  33; 
  32 
  or 
  33) 
  transverse 
  rows, 
  and 
  9 
  longitudinal 
  

   rows; 
  predorsal 
  scales 
  16 
  (16 
  to 
  18; 
  16 
  or 
  17) 
  ; 
  suborbital 
  scales 
  in 
  5 
  

   (4 
  or 
  5 
  ; 
  4 
  or 
  5) 
  rows. 
  Gill 
  rakers 
  7 
  to 
  9, 
  usually 
  8 
  on 
  lower 
  limb 
  of 
  

   first 
  arch. 
  

  

  Coloration 
  as 
  in 
  Fundulus 
  grandis 
  graiidis 
  (Jordan 
  and 
  Evermann, 
  

   1896, 
  p. 
  642). 
  The 
  specimens 
  were 
  killed 
  and 
  fixed 
  in 
  10 
  percent 
  

   formalin 
  and 
  later 
  transferred 
  to 
  70 
  percent 
  alcohol. 
  

  

  Types.— 
  T\\Q 
  holotype, 
  U.S.N.M. 
  No. 
  132419, 
  is 
  an 
  adult 
  female 
  75 
  

   mm. 
  in 
  standard 
  length, 
  collected 
  by 
  Luis 
  Rene 
  Rivas 
  in 
  a 
  brackish- 
  

   water 
  channel 
  at 
  Playa 
  Uvero, 
  about 
  18 
  km, 
  northeast 
  of 
  Sagua 
  La 
  

   Grande 
  (hence 
  the 
  name 
  saguanus) 
  , 
  Province 
  of 
  Las 
  Villas, 
  Cuba 
  (lati- 
  

   tude 
  22°51' 
  N., 
  longitude 
  79°54'40" 
  W.), 
  on 
  August 
  13, 
  1945. 
  The 
  

   paratypes, 
  U.S.N.M. 
  No. 
  132420, 
  seined 
  with 
  the 
  holotype, 
  comprise 
  9 
  

   half-grown 
  and 
  adult 
  females 
  38 
  to 
  65 
  mm., 
  and 
  5 
  adult 
  males 
  49 
  

   to 
  65 
  mm. 
  

  

  The 
  type 
  specimens 
  have 
  been 
  deposited 
  in 
  the 
  United 
  States 
  Na- 
  

   tional 
  Museum. 
  

  

  This 
  subspecies 
  differs 
  from 
  Fundulus 
  grandis 
  grandis 
  in 
  the 
  deeper 
  

   and 
  shorter 
  caudal 
  peduncle, 
  longer 
  head, 
  broader 
  interorbital, 
  fewer 
  

   pectoral 
  rays 
  and 
  scales, 
  as 
  shown 
  in 
  table 
  1 
  and 
  the 
  following 
  key. 
  

  

  