1904.] NATURAL SCIENCES OF PHILADELPHIA. 249 



Considerable variation is noticed. Some examples have few brown 

 mottlings on side, others have them very distinct and wavy. All are 

 more or less orange-red on fins and show greater portion of caudal 

 dusky. 



An example from Hartford, Arkansas, according to Dr. Pilsbry's 

 notes, had the fins vividly colored in life. The spinous dorsal and 

 ventrals were with green spines and rays, the rayed dorsal and caudal 

 with a scarlet border, and the anal scarlet Avith a green edge. 



OIOHLIDiE. 

 Heros oyanoguttatus (Baird and Girard). 



Del Rio and Devil's river, Texas. 



