The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)
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Bivalvia | Unionida | Hyrioidea | Hyriidae | Hyriinae genus Echyridella McMichael & Hiscock, 1958: cladomics 3 Recent valid species (4 total species) Cladomics Summarynumber of species = 3 (4 total) analyzed in 55 cladograms in 29 publications maximum number of terminals in an analysis =
3 (mean = 1.07, median = 1) Basic Monophylynumber of cladograms that test basic monophyly
(i.e., more than 1 included species) = 2 maximum number of included terminals = 3, (mean =
3 median = 3) proportion of cladograms that support basic monophyly
= 1
Campbell & Lydeard, 2026 [Publ 4810], fig. 6-14 ** Top Monophyly Cladogram ** ** Top Sister-Group Cladogram ** | iT | tT | bi | riS | oT | roT | roS | iD | | 3 | 3 | 1 | 3 | 629 | 15 | 4 | 0 |
+----- Echyridella_aucklandica **
--+
| +-- Echyridella_onekaka **
+--+
+-- Echyridella_menziesii **
Marshall et al., 2014 [Publ 3593], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 3 | 3 | 1 | 3 | 11 | 4 | 2 | 0 |
+----- Echyridella_aucklandica **
--+
| +-- Echyridella_menziesii **
+--+
+-- Echyridella_onekaka **
Hoeh et al., 2009 [Publ 2716], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 46 | 5 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Hyridella
+--+
| +-- Castalia
+--+
+-- Diplodon
Breton et al., 2011 [Publ 3376], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 37 | 0 | 0 | -- |
-- Echyridella_menziesii **
Chase et al., 2018 [Publ 3861], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 10 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2021 [Publ 4366], fig. 3-BI | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 72 | 0 | 0 | -- |
-- Echyridella_menziesii **
Guerra et al., 2017 [Publ 3772], fig. 2a | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 24 | 0 | 0 | -- |
-- Echyridella_menziesii **
Huang et al., 2018 [Publ 3828], fig. 6 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 41 | 0 | 0 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2002 [Publ 2653], fig. 2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 30 | 2 | 2 | -- |
-- Echyridella_menziesii **
Roe & Hoeh, 2003 [Publ 2655], fig. 4f3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 30 | 2 | 2 | -- |
-- Echyridella_menziesii **
Walker et al., 2006 [Publ 2666], fig. 6 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 35 | 4 | 3 | -- |
-- Echyridella_menziesii **
Huang et al., 2019 [Publ 3843], fig. 3-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 22 | 0 | 0 | -- |
-- Echyridella_menziesii **
Chen et al., 2025 [Publ 4448], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 84 | 0 | 0 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2009 [Publ 2716], fig. 4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 45 | 5 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Hyridella
+--+
| +-- Castalia
+--+
+-- Diplodon
Chase et al., 2018 [Publ 3847], fig. 4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 38 | 0 | 0 | -- |
-- Echyridella_menziesii **
Guerra et al., 2019 [Publ 4168], fig. 2-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 21 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2021 [Publ 4366], fig. 3-ML | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 72 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2023 [Publ 4339], fig. 4_S5-nt | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 94 | 0 | 0 | -- |
-- Echyridella_menziesii **
Huang et al., 2019 [Publ 3843], fig. S3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 198 | 6 | 4 | -- |
+----------- Echyridella_menziesii **
--+
| +-------- Hyridella
+--+
| +----- Diplodon
+--+
| +-- Castalia
+--+
+-- Triplodon
Wu et al., 2019 [Publ 3864], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 45 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2024 [Publ 4350], fig. 8b_S2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 90 | 0 | 0 | -- |
-- Echyridella_menziesii **
Bogan & Hoeh, 2000 [Publ 2650], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 33 | 2 | 2 | -- |
-- Echyridella_menziesii **
Huang et al., 2019 [Publ 3843], fig. 2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 200 | 6 | 4 | -- |
+----------- Echyridella_menziesii **
--+
| +-------- Hyridella
+--+
| +----- Diplodon
+--+
| +-- Castalia
+--+
+-- Triplodon
Santos-Neto et al., 2016 [Publ 3739], fig. 2a_b | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 19 | 12 | 4 | -- |
-- Echyridella_menziesii **
Graf & Ó Foighil, 2000 [Publ 2649], fig. 1_2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 10 | 4 | 3 | -- |
+-- Diplodon
+--------+
| +-- Castalia
--+
| +-------- Hyridella_australis__2
+--+
| +----- Hyridella_australis__1
+--+
| +-- Echyridella_menziesii **
+--+
+-- Hyridella_depressa
Graf & Cummings, 2006 [Publ 1968], fig. 2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 46 | 5 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Hyridella
+--+
| +-- Castalia
+--+
+-- Diplodon
Guerra et al., 2019 [Publ 4168], fig. 1-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 21 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2021 [Publ 4366], fig. 4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 67 | 0 | 0 | -- |
-- Echyridella_menziesii **
Santos-Neto et al., 2016 [Publ 3739], fig. 4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 19 | 12 | 4 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2001 [Publ 2652], fig. 14f4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 30 | 2 | 2 | -- |
-- Echyridella_menziesii **
Baker et al., 2003 [Publ 2690], fig. 5 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 7 | 4 | 3 | -- |
+-- Echyridella_menziesii **
--+
+-- Castalia
Wu et al., 2022 [Publ 4238], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 72 | 0 | 0 | -- |
-- Echyridella_menziesii **
Guerra et al., 2017 [Publ 3772], fig. 2b-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 7 | 0 | 0 | -- |
-- Echyridella_menziesii **
Walker et al., 2006 [Publ 2666], fig. 6-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 13 | 0 | 0 | -- |
-- Echyridella_menziesii **
Huang et al., 2018 [Publ 3828], fig. 6-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 16 | 0 | 0 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2009 [Publ 2716], fig. 5 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 45 | 5 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Hyridella
+--+
| +-- Castalia
+--+
+-- Diplodon
Chase et al., 2018 [Publ 3847], fig. 5 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 9 | 0 | 0 | -- |
-- Echyridella_menziesii **
Campbell & Lydeard, 2026 [Publ 4810], fig. 3_5 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 139 | 3 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Diplodon
+--+
| +-- Castalia
+--+
+-- Prisodon
Guerra et al., 2017 [Publ 3772], fig. 2a-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 7 | 0 | 0 | -- |
-- Echyridella_menziesii **
Baker et al., 2004 [Publ 2685], fig. 2-3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 8 | 4 | 3 | -- |
+-- Echyridella_menziesii **
--+
+-- Castalia
Dai et al., 2025 [Publ 4440], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 86 | 0 | 0 | -- |
-- Echyridella_menziesii **
Guerra et al., 2019 [Publ 4168], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 40 | 3 | 3 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2002 [Publ 2673], fig. 1-F | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 8 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2020 [Publ 4121], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 47 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2024 [Publ 4350], fig. 8a_S1 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 90 | 0 | 0 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2002 [Publ 2673], fig. 1-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 8 | 0 | 0 | -- |
-- Echyridella_menziesii **
Huang et al., 2019 [Publ 3843], fig. S4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 200 | 6 | 4 | -- |
-- Echyridella_menziesii **
Guerra et al., 2017 [Publ 3772], fig. 2b | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 24 | 0 | 0 | -- |
-- Echyridella_menziesii **
Roe & Hoeh, 2003 [Publ 2655], fig. 4f2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 30 | 2 | 2 | -- |
-- Echyridella_menziesii **
Chase et al., 2018 [Publ 3861], fig. 1-M | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 10 | 0 | 0 | -- |
-- Echyridella_menziesii **
Huang et al., 2019 [Publ 3843], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 55 | 0 | 0 | -- |
-- Echyridella_menziesii **
Hoeh et al., 2001 [Publ 2652], fig. 14f2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 30 | 2 | 2 | -- |
-- Echyridella_menziesii **
Campbell & Lydeard, 2026 [Publ 4810], fig. 4 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 46 | 0 | 0 | -- |
-- Echyridella_menziesii **
Wu et al., 2023 [Publ 4339], fig. 4_S5-aa | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 94 | 0 | 0 | -- |
-- Echyridella_menziesii **
Guerra et al., 2019 [Publ 4168], fig. 2 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 40 | 3 | 3 | -- |
+-------- Echyridella_menziesii **
--+
| +----- Diplodon
+--+
| +-- Castalia
+--+
+-- Prisodon
|