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Percidae (Perches) > Etheostomatinae
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335); trisella: From the words tri, meaning three, and sella, saddle (Ref. 10294).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Subtropical; 36°N - 33°N
North America: Coosa River system in Georgia, Alabama and southeastern Tennessee, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.9 cm TL male/unsexed; (Ref. 5723); common length : 3.6 cm TL male/unsexed; (Ref. 12193)
Short description
Identification keys | Morphology | Morphometrics
Inhabit sand and gravel runs of creeks and small rivers. Spawning occurs in headwaters (Ref. 5723, 10294). Adults feed on midge larvae and mayfly nymphs (Ref. 10294). Eggs are found attached to the substrate unguarded (Ref. 7043).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eggs are found attached to the substrate unguarded (Ref. 7043).
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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