Sarcidium Cope, 1871 Phenacobius, the suckermouth minnows, is a genus of cyprinid fishes endemic to the United States.

Historically the suckermouth minnow was not found as far eastward as Ohio, now they seem to be a stable species living throughout the Midwest and parts of southern states such as Texas, New Mexico, and Alabama.

Many forests and prairies were cleared out to make farmland, this caused for drainage streams and rivers to take form, moving the minnows eastward.

Since most of the female suckermouths mate with many males and are iteroparous, she lays small batches of eggs throughout her spawning period, probably to allow greater survivorship among developing embryos.

[6] Due to the suckermouth minnows being prey to green sunfish, yellow perch, and brown trout, they are commonly used for bait by fishermen.