THIRTEKNTH AXXIWL REPORT ]]\) 



2. I'alc silver)-, wiili a L^rccnisli cast, unmarked, (see upper 

 figure on plate opposite i)ao;e 438. .liiicrlcaii I-'ood and Caiiic 

 Fislics.) 



3. Color under excitement; .same as precedini;-. but with five 

 irregular, vertical bands of brownish black. Shown faintly 

 in lower figure of the plate referred to. It is better defined on 

 colored ])late 25, Fishes of Porto Rico, but neither show the 

 remarkal)ly sharp bands aftected by specimens in the Xew York 

 Aquarium. 



Sergeant Major, {Abndcfduf saxatilis). Banded phase: 

 Body pale, with five or six vertical black bands. Frequently the 

 pale areas between the bands become yellow. 



Dark phase : Body and fins nearly black, vertical bands on sides 

 almost obscured. 



Alarm phase (in the photographic tank) : Same as preceding, 

 but v'ertical bands more distinct, with a white band across fore- 

 head and a white blotch under eye. 



Gray Snapper, {Lutianus griseus). Three phases : 



1. Uniformly pale, dusky above, lighter on head and under sur- 

 face (fig. I, plate 12). 



2. Uniformly dark olive brown, still lighter below. 



3. Coloration under excitement : The whole fish becomes a 

 shade darker, with a heavy black band, the width of the eye, ex- 

 tending from snout obliquely through eye to front of first dorsal 

 fin. A narrow fringe of black appears on dorsal and anal fins 

 (fig. 2, plate 12). 



This is also fairly well shown in American Food and Game 

 Fishes, on the plate facing page 432. The brilliantly colored 

 phase on plate 17, Fishes of Porto Rico, has not been observed 

 among specimens in the Aquarium, except as it has been indi- 

 cated occasionally as a faint suiTusion of color. 



Schoolmaster, {Lutianus apodus). Ordinary coloration: 

 Above dusky olive. Yellowish olive below and on all fins, no 

 markings anywhere. 



Excitement phase : Narrow vertical bands come out sharply 

 on upper part of body. Feeding usually develops the bands dis- 

 tinctly. 



Phase 3- The brilliant }ellow coloration shown in plate 19, 

 Fishes of Porto Rico, is probably correct, as the jminting was 

 made from a living fish held in the portable tank. This colora- 

 tion probably results from fright, it has not been observed in 



