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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!

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Bivalvia | Unionida | Unionoidea | Unionidae | Gonideinae | Rectidentini

subtribe CTENODESMINA Pfeiffer, Zieritz, Rahim & Lopes-Lima in Zieritz et al., 2021: cladomics
     2 genera

Cladomics Summary

number of species = 6 (6 total)
number of subtaxa (rank: genus) = 2
analyzed in 14 cladograms in 11 publications
maximum number of terminals in an analysis = 5 (mean = 2.21, median = 2)
maximum number of subtaxa (genus) = 2 (mean = 1.21, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 12
maximum number of included terminals = 5, (mean = 2.42 median = 2)
maximum number of subtaxa (genus) = 2 (mean = 1.25, median = 1)
proportion of cladograms that support basic monophyly = 1

Rigorous Monophyly

number of cladograms that test rigorous monophyly = 3
(Rigorous monophyly refers to cladograms with terminal species representing more than one subtaxon (genus) taxon and at least one rigorous outgroup (family).
maximum number of included terminals = 5 (mean = 3.67, median = 3)
maximum number of subtaxa (genus) = 2 (mean = 2, median = 2)
proportion of cladograms that support rigorous monophyly = 1


Pairwise Cladogram Clustering

The graphs below depict in two dimensions all pair-wise ingroup distances within the cladome. See the Cladmoics FARQ for more information.


PCoA Ordination


NJ Tree


Zieritz et al., 2024 [Publ 4381], fig. 2

** Top Monophyly Cladogram **

iTtTbiriSoTroTroSiD
5532411320
     +-- Khairuloconcha **
  +--+                 
  |  +-- Ctenodesma **    
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Zieritz et al., 2020 [Publ 4102], fig. 4

** Top Sister-Group Cladogram **

iTtTbiriSoTroTroSiD
110130252--
  +----- Contradentina 
--+                    
  |  +-- Khairuloconcha **
  +--+                 
     +-- Rectidentina  

Zieritz et al., 2021 [Publ 4218], fig. 5

iTtTbiriSoTroTroSiD
3312291122
     +-- Ctenodesma **    
  +--+                 
  |  +-- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Jeratthitikul et al., 2024 [Publ 4387], fig. 1

iTtTbiriSoTroTroSiD
331257622
     +-- Ctenodesma **    
  +--+                 
  |  +-- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Chen et al., 2025 [Publ 4663], fig. 1

iTtTbiriSoTroTroSiD
22014752--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Liu et al., 2024 [Publ 4380], fig. 5

iTtTbiriSoTroTroSiD
220135112--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Wu et al., 2024 [Publ 4350], fig. 5c

iTtTbiriSoTroTroSiD
220135112--
  +-- Ensidens           
  |                      
  +-- Hyriopsis_desowitzi
  |                      
  +-- Rectidens          
--+                      
  +-- Hyriopsis_bialata  
  |                      
  +-- Khairuloconcha **     
  |                      
  +-- Contradentina      

Dai et al., 2025 [Publ 4441], fig. 1

iTtTbiriSoTroTroSiD
22014652--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Wu et al., 2024 [Publ 4350], fig. 5a

iTtTbiriSoTroTroSiD
220135112--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Dai et al., 2024 [Publ 4389], fig. 3

iTtTbiriSoTroTroSiD
22014552--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Wu et al., 2024 [Publ 4350], fig. 5b

iTtTbiriSoTroTroSiD
220135112--
  +----------- Hyriopsis_bialata  
  |                               
--+        +-- Rectidens          
  |  +-----+                      
  |  |     +-- Khairuloconcha **     
  +--+                            
     |  +----- Ensidens           
     +--+                         
        |  +-- Hyriopsis_desowitzi
        +--+                      
           +-- Contradentina      

Wu et al., 2024 [Publ 4350], fig. 6-7

iTtTbiriSoTroTroSiD
220135112--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Wu et al., 2024 [Publ 4388], fig. 5

iTtTbiriSoTroTroSiD
220135112--
  +----- Khairuloconcha **
--+                    
  |  +-- Rectidentina  
  +--+                 
     +-- Contradentina 

Pfeiffer et al., 2021 [Publ 4126], fig. 27

iTtTbiriSoTroTroSiD
110110101--
  +-- Khairuloconcha **
--+                 
  +-- Rectidentina  
 
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