The Inhabitants of the Aquarium 169 



dark olive, the ground color of its sides and 

 belly being a light salmon yellow. From 

 twelve to eighteen narrow blackish bars run 

 from the back down toward the belly. The 

 lower fins are light yellow and the top of 

 the head and the mouth are also yellowish. 

 The back of the female fish is a light olive 

 color decreasing in intensity toward the 

 belly. A narrow black stripe runs all along 

 each side and two shorter stripes run under 

 the long one. Two short black bars cross 

 the upper longitudinal stripe near the base 

 of the caudal fin. This Fundulus is found 

 from Cape Cod to Florida. 



The Fresh-water Killi {Fundulus diapha- 

 niis). Its color above is olivaceous, the 

 sides bright silvery white. The male has 

 about twenty silvery vertical bars inter- 

 spaced with a darker color. The female 

 fish has usually sixteen bars, but they are 

 somewhat shorter than those of the male, 

 and slightly paler in hue. The young 

 Killis show these markings quite distinctly 



