Adults occur in gravel and rubble riffles, especially spring-fed and vegetated riffles, of headwaters, creeks and small rivers . Eggs are found attached to the substrate unguarded .
Physical description for Greenthroat darter is currently being compiled.
Behavioural data for Greenthroat darter is currently being reviewed.
Eggs are found attached to the substrate unguarded .
Freshwater; benthopelagic. Tropical; 35°N - 27°N North America: found in Colorado, Guadalupe and Nueces River drainages in Texas, USA; and in Pecos River system in New Mexico, USA.
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