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Page last updated
Thu 7 August 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 | Parreysiinae | Coelaturini

genus Nyassunio Haas, 1936: cladomics
     2 Recent valid species (2 total species)

Cladomics Summary

number of species = 2 (2 total)
analyzed in 9 cladograms in 4 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


Ortiz-Sepulveda et al., 2020 [Publ 4101], fig. 1

** Top Monophyly Cladogram ** ** Top Sister-Group Cladogram **

iTtTbiriSoTroTroSiD
110135266--
  +-------------------------------- Grandidieria                 
  |                                                              
  |                             +-- Pseudospatha                 
--+  +--------------------------+                                
  |  |                          +-- Moncetia                     
  |  |                                                           
  |  |  +-------------------------- Nitia                        
  +--+  |                                                        
     |  |                       +-- Coelatura_aegyptiaca         
     |  |                       |                                
     |  |                       +-- Coelatura_alluaudi           
     +--+                       |                                
        |  +--------------------+-- Coelatura_bakeri             
        |  |                    |                                
        |  |                    +-- Coelatura_hauttecoeuri       
        |  |                    |                                
        |  |                    +-- Coelatura_stuhlmanni         
        +--+                                                     
           |                    +-- Coelatura_leopoldvillensis   
           |  +-----------------+                                
           |  |                 +-- Coelatura_mesafricana        
           |  |                                                  
           |  |                 +-- Coelatura_horei              
           +--+                 |                                
              |  +--------------+-- Coelatura_ratidota           
              |  |              |                                
              |  |              +-- Coelatura                    
              +--+                                               
                 |  +-------------- Coelatura_gabonensis         
                 |  |                                            
                 |  +-------------- Coelatura_stanleyvillensis   
                 +--+                                            
                    |  +----------- Coelatura_kunenensis         
                    |  |                                         
                    |  |     +----- Prisodontopsis_aviculaeformis
                    +--+  +--+                                   
                       |  |  |  +-- Coelatura_briarti            
                       |  |  +--+                                
                       |  |     +-- Prisodontopsis_mweruensis    
                       +--+                                      
                          |     +-- Coelatura_choziensis         
                          |     |                                
                          |     +-- Coelatura_hypsiprymna        
                          |     |                                
                          +-----+-- Coelatura_luapulaensis       
                                |                                
                                +-- Coelatura_mossambicensis     
                                |                                
                                +-- Nyassunio_nyassaensis **        

Bolotov et al., 2024 [Publ 4369], fig. 2

iTtTbiriSoTroTroSiD
11016132--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Coelatura_kunenensis 
     +--+                        
        +-- Nyassunio_nyassaensis **

Bolotov et al., 2024 [Publ 4369], fig. S1

iTtTbiriSoTroTroSiD
11016232--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Nyassunio_nyassaensis **
     +--+                        
        +-- Coelatura_kunenensis 

Ortiz-Sepulveda et al., 2020 [Publ 4101], fig. 2

iTtTbiriSoTroTroSiD
110135266--
                       +----- Grandidieria                 
  +--------------------+                                   
  |                    |  +-- Pseudospatha                 
  |                    +--+                                
  |                       +-- Moncetia                     
  |                                                        
--+  +----------------------- Nitia                        
  |  |                                                     
  |  |                    +-- Coelatura_aegyptiaca         
  |  |                    |                                
  |  |                    +-- Coelatura_alluaudi           
  +--+                    |                                
     |  +-----------------+-- Coelatura_bakeri             
     |  |                 |                                
     |  |                 +-- Coelatura_hauttecoeuri       
     |  |                 |                                
     |  |                 +-- Coelatura_stuhlmanni         
     +--+                                                  
        |                 +-- Coelatura_leopoldvillensis   
        |  +--------------+                                
        |  |              +-- Coelatura_mesafricana        
        |  |                                               
        |  |              +-- Coelatura_horei              
        +--+              |                                
           |  +-----------+-- Coelatura_ratidota           
           |  |           |                                
           |  |           +-- Coelatura                    
           |  |                                            
           +--+           +-- Coelatura_gabonensis         
              |  +--------+                                
              |  |        +-- Coelatura_stanleyvillensis   
              |  |                                         
              +--+  +-------- Coelatura_kunenensis         
                 |  |                                      
                 |  |     +-- Coelatura_briarti            
                 |  |     |                                
                 +--+  +--+-- Prisodontopsis_mweruensis    
                    |  |  |                                
                    |  |  +-- Prisodontopsis_aviculaeformis
                    |  |                                   
                    +--+  +-- Coelatura_choziensis         
                       |  |                                
                       |  +-- Coelatura_hypsiprymna        
                       |  |                                
                       +--+-- Coelatura_luapulaensis       
                          |                                
                          +-- Coelatura_mossambicensis     
                          |                                
                          +-- Nyassunio_nyassaensis **        

Bolotov et al., 2022 [Publ 4252], fig. 2

iTtTbiriSoTroTroSiD
11016032--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Nyassunio_nyassaensis **
     +--+                        
        +-- Coelatura_kunenensis 

Bolotov et al., 2022 [Publ 4252], fig. S1

iTtTbiriSoTroTroSiD
11016032--
  +-- Coelatura_aegyptiaca 
  |                        
  +-- Coelatura_kunenensis 
--+                        
  +-- Nitia                
  |                        
  +-- Nyassunio_nyassaensis **

Bolotov et al., 2022 [Publ 4239], fig. S2

iTtTbiriSoTroTroSiD
11015732--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Coelatura_kunenensis 
     +--+                        
        +-- Nyassunio_nyassaensis **

Bolotov et al., 2022 [Publ 4239], fig. 2

iTtTbiriSoTroTroSiD
11015732--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Coelatura_kunenensis 
     +--+                        
        +-- Nyassunio_nyassaensis **

Bolotov et al., 2022 [Publ 4239], fig. S1

iTtTbiriSoTroTroSiD
11015732--
  +-------- Nitia                
--+                              
  |  +----- Coelatura_aegyptiaca 
  +--+                           
     |  +-- Coelatura_kunenensis 
     +--+                        
        +-- Nyassunio_nyassaensis **
 
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