Devils River Minnow
A small borderland fish survives in clear spring-fed reaches where groundwater, desert rivers, barriers, and two countries meet.
Artwork inspired by Tom Lea
Devils River minnows are streamlined silvery fishes of the Devils River, San Felipe Creek, and related Rio Grande and Mexican tributaries. They feed in current over gravel and cobble, and require connected, clean flowing habitat. A dark lateral stripe and small size help identification, but several minnows demand expert comparison.
Groundwater pumping, reduced spring flow, channel modification, contaminants, invasive species, and fragmented populations threaten the range. The species is protected and not an aquarium target. Responsible observation means reading habitat from public access while leaving seining, handling, and exact population surveys to permitted biologists.
- Status
- Federally threatened borderland endemic
- Best clue
- Small silvery minnow over spring-fed gravel
- Texas habitat
- Clear desert streams with steady flow and clean substrate
Quick guide
- Identify by
- Look for small silvery minnow over spring-fed gravel.
- Confirm with
- Confirm the sighting against clear desert streams with steady flow and clean substrate.
Observe Devils River Minnow on its terms
- Shape
- Small slender silvery minnow with a dark side stripe.
- Water
- Clear flowing spring runs and gravelly desert streams.
- Range
- Devils River–lower Pecos–Rio Grande borderland system.
- Ethics
- No collecting, bait use, relocation, or cross-drainage release.
Good to know
“Devils River” is not the full range, which crosses a larger binational watershed, and similar minnows are difficult to identify visually. Drainage, morphology, and expert records matter more than a bright photograph.
Notice these
- Small silvery minnow over spring-fed gravel
- Clear desert streams with steady flow and clean substrate
- Federally threatened borderland endemic