284 Fresh Water Aquarium 



bright citron yellow. The markings on this 

 species vary considerably in shape, intensity 

 and shade of color. The habitat may cause 

 these variations. 



The metamorphosis of frogs in general, 

 from tadpole to frog is a gradual one and 

 lasts, according to species, from a few 

 months to almost two years. First appear 

 the hind legs, then the fore legs, then the 

 tail begins to shrivel until it disappears en- 

 tirely, thereby completing the transforma- 

 tion from tadpole to frog. Now the frog 

 will leave the wet element and commence a 

 new and different life. 



THE LOWER AQUATIC LIFE. 



Snails excepted, the lower animals may 

 as a rule be excluded from the fresh water 

 aquarium, but as some of our readers may 

 be sufficiently enthusiastic to try their hand 

 at aquatic entomology, we enumerate here 

 a few of the better known insects. 



The development of the different beetles 



