Mussels (Bivalvia, family Unionidae) from the Mountain Fork River. This is an incomplete list as some specimens are still being identified.

Actinonaias ligamentina mucket
Amblema plicata threeridge
Fusconaia flava Wabash pigtoe
Lampsilis cardium plain pocketbook
Lampsilis siliquoidea fatmucket
Lasmigona costata flutedshell
Ligumia subrostrata pondmussel
Obovaria jacksoniana southern hickorynut
Ptychobranchus occidentalis Ouachita kidneyshell
Quadrula pustulosa pimpleback
Quadrula quadrula mapleleaf
Strophitus undulatus creeper
Toxolasma parvus lilliput
Toxolasma texasensis Texas lilliput
Tritogonia verrucosa pistolgrip
Truncilla donaciformis fawnsfoot
Villosa arkansasensis Ouachita creekshell
Villosa iris rainbow
Villosa lienosa little spectaclecase