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Page last updated
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!


Publication Inoue et al. (2014): cladograms
     publication summary | cladograms

Complete Citation

Inoue, K., A.L. McQueen, J.L. Harris & D.J. Berg. 2014. Molecular phylogenetics and morphological variation reveal recent speciation in freshwater mussels of the genera Arcidens and Arkansia (Bivalvia: Unionidae). Biological Journal of the Linnean Society 112(3): 535-545. Available electronically.

Cladogram Figures

(click the figure number to see the cladogram)

Cladogram Figure 3A
  +----------------------------- Cumberlandia_monodonta     
  |                                                         
  |  +-------------------------- Amblema_plicata            
--+  |                                                      
  |  +-------------------------- Eurynia_dilatata           
  |  |                                                      
  +--+-------------------------- Lampsilis_ornata           
     |                                                      
     |  +----------------------- Quadrula_quadrula          
     |  |                                                   
     |  |  +-------------------- Gonidea_angulata           
     +--+  |                                                
        |  |        +----------- Pseudodontoideus_subvexus  
        |  |  +-----+                                       
        +--+  |     |  +-------- Lasmigona_costata          
           |  |     +--+                                    
           |  |        |  +----- Lasmigona_complanata       
           |  |        +--+                                 
           |  |           |  +-- Arcidens_confragosus       
           +--+           +--+                              
              |              +-- Arcidens_wheeleri          
              |                                             
              |  +-------------- Strophitus_undulatus       
              |  |                                          
              |  |     +-------- Pyganodon_grandis          
              |  |  +--+                                    
              +--+  |  |  +----- Utterbackia_peninsularis__2
                 |  |  +--+                                 
                 |  |     |  +-- Utterbackia_imbecillis     
                 |  |     +--+                              
                 +--+        +-- Utterbackia_peninsularis__1
                    |                                       
                    |        +-- Platynaias_compressa       
                    |  +-----+                              
                    |  |     +-- Platynaias_subviridis      
                    +--+                                    
                       |  +----- Alasmidonta_marginata      
                       +--+                                 
                          |  +-- Alasmidonta_undulata       
                          +--+                              
                             +-- Alasmidonta_varicosa       
Cladogram Figure 3B
  +----------- Amblema_plicata      
  |                                 
  |  +-------- Pyganodon_grandis    
--+  |                              
  |  +-------- Pyganodon_cataracta  
  |  |                              
  +--+-------- Pyganodon_fragilis   
     |                              
     +-------- Pyganodon            
     |                              
     |  +----- Platynaias_subviridis
     +--+                           
        |  +-- Arcidens_confragosus 
        +--+                        
           +-- Arcidens_wheeleri    
 
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