| Page last updatedWed 1 October 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 | Unionoida | Hyrioidea | Hyriidae | Hyriinae | Echyridella species Echyridella onekaka Fenwick & Marshall, 2006: specimens1 available nominal species synonym (2 total synonyms)
 Recent Taxonomic OpinionsEchyridella onekaka — Graf & Cummings (2007), Bogan (2010), IUCN (2013), Marshall et al. (2014), Walker et al. (2014), Graf & Cummings (2021) RangeSouthwestern South Island, New Zealand. Map of Georeferenced Specimens
 New Zealand|  AMS_12005
 Cantebury Creek, South Island, New Zealand
 |  FMNH_168001
 Kotinga, Golden Bay, New Zealand; 40°50’S, 172°50’E
 |  DMNH_150030
 Motupipi, Takaka, New Zealand
 |  |  MNHN_MP_1521
 River Avon, Mauku, New Zealand
 |  ANSP_242339
 small stream at Bainham, Aorere Valley, Collingwood Dist., West Nelson, New Zealand
 |  BMNH_93-12-23-2
 South Island, New Zealand
 | 
 CM_MP_58_02. Bainham, New Zealand |