Truncilla donaciformis

Truncilla donaciformis (I. Lea, 1828)
Fawnsfoot

Fawnsfoot collected from the Muskingum River, Ohio (30 mm). Photo by staff (Georgia DNR – Wildlife Resources). Specimen courtesy of Georgia Museum of Natural History (GMNH10057).

Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G5

State Rank: SU

Element Locations Tracked in Biotics: Yes

SWAP 2015 Species of Greatest Conservation Need (SGCN): No

SWAP 2025 Species of Greatest Conservation Need (SGCN): Yes

2025 SGCN Priority Tier: Data Deficient

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Large to small rivers in flowing water; gravel with interstitial sand or in overbank habitats with firm sand, sandy mud, or gravel. Survives well in reservoirs

SWAP 2025 Threat Matrix

Threat 1 Threat 2 Threat 3

General Threat Agriculture & aquaculture Natural system modifications Residential & commercial development

Specific Threat None Dams & water management/use None

SWAP 2025 Conservation Actions:

Action 1: Assess SGCN mussels and mussel communities in the Mobile River system in GA

Action 2: Improve aquatic connectivity in SWAP priority watersheds

Action 3: Provide technical and financial assistance to farmers/landowners to protect stream buffers and wetlands, minimize runoff of sediment and pollutants, and protect habitat from livestock trampling

Fawnsfoot collected from the Muskingum River, Ohio (45 mm). Photo by staff (Georgia DNR – Wildlife Resources). Specimen courtesy of Georgia Museum of Natural History (GMNH10057).

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	Threat 1	Threat 2	Threat 3
General Threat	Agriculture & aquaculture	Natural system modifications	Residential & commercial development
Specific Threat	None	Dams & water management/use	None