Texas hornshell
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Unionida
- family: Unionidae
- genus: Popenaias
- species: Popenaias popeii
León
Guanajuato- Tamazunchale
San Luis Potosí- Poza Rica de Hidalgo
Veracruz
Mexico
Eagle Pass- Pecos
Texas
United States