Author: Fowler, 1916
FBname: Red River pupfish
Comments: Inhabits shallow, sandy pools and runs of headwaters, creeks, and small to medium rivers.  Often found in extremely shallow and hot (to 37°C) water (Ref. 5723).  Consumes midge and other insect larvae (Ref. 79012).  Not a seasonal killifish.  Is difficult to maintain in aquarium (Ref. 27139).