MUSSELp
 
MUSSELpdb
 
 
Taxonomy
 
 
Geography
 
 
 

Page last updated
Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Actinonaias

species Actinonaias signata (Pilsbry, 1910): synonymy
     80 specimens

Lampsilis signata Pilsbry, 1910
Pilsbry, 1910. Proc. Acad. Nat. Sci. 61: 536, pl. 25, figs. 5-6.
Type(s): LECTOTYPE ANSP_99529 (by Johnson & Baker, 1973: 170), Valles River, near a small falls about 3 mi below Valles San Luis Potosi, Mexico.

Lampsilis signataPilsbry (1910), Simpson (1914)
Lampsilis (Actinonaias) signataFrierson (1927)
Lampsilis (Friersonia) signataHaas (1929)
Actinonaias signataHaas (1969), Graf & Cummings (2007), Bogan (2010), Bogan (2013), Graf & Cummings (2021), Czaja et al. (2023), Cummings et al. (2025)

Lampsilis undivaga Pilsbry, 1910
Pilsbry, 1910. Proc. Acad. Nat. Sci. 61: 536, pl. 26, figs. 1-4.
Type(s): LECTOTYPE ANSP_99520 (by Johnson & Baker, 1973: 173), Valles R., 2 mi above Mecos, S.L. Potosi, Mexico.

Lampsilis undivagaPilsbry (1910), Simpson (1914)
Lampsilis (Actinonaias) undivagaFrierson (1927)
Lampsilis (Friersonia) undivagaHaas (1929)
Actinonaias undivagaHaas (1969), Graf & Cummings (2007), Bogan (2010), Bogan (2013), Graf & Cummings (2021), Czaja et al. (2023)
Actinonaias signataCummings et al. (2025)

Taxonomic History (since 1900)

Lampsilis signataPilsbry (1910), Simpson (1914)
Lampsilis undivagaPilsbry (1910), Simpson (1914)
Lampsilis (Actinonaias) signataFrierson (1927)
Lampsilis (Actinonaias) undivagaFrierson (1927)
Lampsilis (Friersonia) signataHaas (1929)
Lampsilis (Friersonia) undivagaHaas (1929)
Actinonaias signataHaas (1969), Graf & Cummings (2007), Bogan (2010), Bogan (2013), Graf & Cummings (2021), Czaja et al. (2023), Cummings et al. (2025)
Actinonaias undivagaHaas (1969), Graf & Cummings (2007), Bogan (2010), Bogan (2013), Graf & Cummings (2021), Czaja et al. (2023)

 
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."