ATLANTIC SAILFISH 



161 



o 



111 



.6 - 



< 



2 



S 



X 

 1- 

 o 

 z 

 liJ 



< 



ID 



z 



O I 

 IE 



T 1 1 — I Mill 1 1 1 — I I M I I 



Mill 



.-..-i*: 



/:• 



H — I I I I MM 



H — I I I I III 



^... 



•• o 



I I I I I I I 



J I I I II II 



J I I I I 11 



10 20 40 60 100 



STANDARD LENGTH IN MM. 



FicURE 33. — Relation of head-spine lengths to standard length. Dots represent study specimens; x, Beebe's specimen; 

 circles, Voss's specimens; and large black dots, the unidentified species. 



fin is present farther posteriorly than on tlie sail- 

 fisli, and (2) there are no dark bars or blotches on 

 the sides of the body, as are present on sailfish 

 exceeding approximately 35 mm. in standard 

 length. Color notes on live 35-45 mm. specimens 

 of the unidentified species do not vary noticeably 

 from those given above for the Atlantic sailfish. 



SUMMARY OF GENERAL GROWTH AND DEVELOP- 

 MENT OF THE ATLANTIC SAILFISH = 



1. From 3.4 to 7 mm., head spination develops 



• Points 1 and 2 are suniniarifS of development of all specimens below 11) 

 mm., since no separation to species was made below this size. 



rapidly, and the pterotic spine growth ceases at 

 approximately 7 mm. 



2. From 7 to 10 mm., head spination reaches 

 its maximum and no further development occurs, 

 the snout begins to elongate, and rays begin to 

 appear in the fins. 



3. From 10 to 20 mm., the snout elongates 

 farther and the snout extension increases, and 

 the dorsal, anal, pelvic, and pectoral fins develop 

 their full complement of rays. 



4. From 20 to 50 mm., the snout elongates and 

 snout extension increases, the dorsal, anal, pec- 



