Range and Identity
Cyprinodon rubrofluviatilis is the scientific identity retained here. The Red River common name does not exclude records in the Brazos system. Exact drainage information is useful when comparing populations with other pupfishes from neighboring southern Great Plains and southwestern waters.
Habitat and Behavior
Adults use shallow sandy habitat, including waters reported to reach thirty-seven degrees Celsius. Such a record shows an observed condition rather than a constant preferred temperature or a universal limit for all populations. Water depth, substrate and measured temperature should remain together when available.
Food and Life History
Midge larvae are recorded foods. The maximum reference is six centimeters total length. This is a nonannual pupfish, and an obligatory yearly disappearance of all adults is not part of the described life cycle. No independent maximum weight is calculated from length.
Field Note
Retain the measured temperature with its date and place. A hot-water observation is more useful when it describes actual conditions rather than becoming a fixed requirement assigned to the species.
All Lakes With Red River Pupfish
Browse lakes and reservoirs with documented Red River Pupfish records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
No published lakes are currently linked to this species in our confirmed records.