21 6 Fresh Water Aquarium 



protruding". All fins are of fairly good size 

 and rounded in outline. The caudal fin is 

 fan-shaped and undivided. The color of the 

 fish varies from a dark blackish brown to 

 a lighter olive brown, relieved by lighter 

 spots of a bluish tint. A faint dark stripe, 

 on some specimens separated into spots, runs 

 along the sides. A large black spot with a 

 blue center is conspicuous on the base of the 

 pectoral fin, but appears only on fishes of 

 a certain age, being faintly indicated, or 

 altogether missing on small specimens. 

 Some fishes show a distinct dark band be- 

 tween the pectoral and the base of the cau- 

 dal fin. The head has two blackish stripes 

 on each side. All fins show dark blotches 

 on a glassy ground, in the anal fin these 

 blotches taking the form of length bars. 



As an aquarium fish the Dormitator can 

 be recommended as a li\ r ely and graceful 

 inmate which is also exemplary in its be- 

 havior to other fishes. Tf well fed, it will 

 soon outgrow a small aquarium. 



