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Thu 17 July 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!

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Popenaiadini

genus Sphenonaias Crosse & Fischer, 1894: cladomics
     5 Recent valid species (5 total species)

Cladomics Summary

number of species = 5 (5 total)
analyzed in 4 cladograms in 3 publications
maximum number of terminals in an analysis = 1 (mean = 1, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 0
maximum number of included terminals = , (mean = median = )
proportion of cladograms that support basic monophyly = 0

Inoue et al., 2020 [Publ 4128], fig. 3

** Top Monophyly Cladogram **

  +----- Sphenonaias_microdon__2 **
--+                             
  |  +-- Cyrtonaias             
  +--+                          
     +-- Sphenonaias_microdon__1 **

Freeman et al., 2025 [Publ 4443], fig. 2

** Top Sister-Group Cladogram **

-- Sphenonaias_microdon **

Pfeiffer et al., 2019 [Publ 3866], fig. 1

-- Sphenonaias_microdon **

Inoue et al., 2020 [Publ 4128], fig. 2

-- Sphenonaias_microdon **