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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!


Bivalvia | ... | Unionidae | Gonideinae | Contradentini | Yaukthwa

species Yaukthwa dalliana (Frierson, 1913): synonymy
     6 specimens + 3 Genbank vouchers

Parreysia dalliana Frierson, 1913
Frierson, 1913. Nautilus 26: 142.
‘Gould’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): pl. 32, figs. 3-4.
Type(s): LECTOTYPE SMF_13699B, Lashio Fl. Lashio nordl Shan Staaten.

Parreysia (s.s.) dallianaPreston (1915)
Trapezoideus dallianusHaas (1919), Prashad (1922), Srinivasa Rao (1928)
Trapezoideus foliaceusHaas (1969)
Trapezoideus exolescensHe & Zhuang (2013)
Yaukthwa cf. dallianaKonopleva et al. (2019), Bolotov et al. (2019), Konopleva et al. (2019), Zieritz et al. (2020)
Yaukthwa dallianaBolotov et al. (2020), Pfeiffer et al. (2021), Graf & Cummings (2021), Bolotov et al. (2022)

Unio foliaceus Martens, 1899
‘Gould’ Martens, 1899. Arch. Naturg. 65: 42.
(misidentified reference to Unio foliaceus Gould, 1843)

Trapezoideus dallianusHaas (1919), Prashad (1922)

Trapezoideus foliaceus Haas, 1919
‘Gould’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): pl. 32, figs. 3-4.
(misidentified reference to Unio foliaceus Gould, 1843)

Taxonomic History (since 1900)

Parreysia (s.s.) dallianaPreston (1915)
Trapezoideus dallianusHaas (1919), Prashad (1922), Srinivasa Rao (1928)
Trapezoideus foliaceusHaas (1969)
Trapezoideus exolescensHe & Zhuang (2013)
Yaukthwa cf. dallianaKonopleva et al. (2019), Bolotov et al. (2019), Konopleva et al. (2019), Zieritz et al. (2020)
Yaukthwa dallianaBolotov et al. (2020), Pfeiffer et al. (2021), Graf & Cummings (2021), Bolotov et al. (2022)

 
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