Smithsonian Report, 1918. — Longley. 



Plate 2. 



Fig. I. — Water-Tight Camera Holder Used in Submarine Photography. 



Fig. 2.-Red Goatfish (Upeneus maculatus), Yellowtail (Ocyurus chrys- 

 urus), and Iridio bivittatus, Diurnal Fishes, Searching for Food 

 Together. 



