Genus Overview
12 species in North America. Species are collected in sand and gravel deposits.
Characteristics
POLLUTION TOLERANCE
Southeast: 0
Upper Midwest: 3
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
Shredder / Detritivore
Shredder / Detritivore
MOVEMENT
Burrower
Sprawler
Sprawler
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
Lotic-erosional
Diagnostic Characters