Mussel of the

Page last updated
6 November 2019

Mussel of the Month

The November 2019 Mussel of the Month is Yaukthwa peguensis. Yaukthwa is a genus of eight species found in Myanmar and Thailand.

MCZ 161875. Pegu [= Bago], Myanmar (type)

The former genus Trapezoideus sensu lato (Graf & Cummings, 2007) has been recently split among several genera: Trapezoideus sensu stricto, Contradens, Indonaia, Trapezidens, Lamellidens, Arcidopsis, and Yaukthwa (Konopleva et al., 2019).

Yaukthwa is a newly recognized genus, described earlier this year (Konopleva et al., 2019). The eight currently known species are disrtributed from the Irrawaddy River east to the Salween of Myanmar and Thailand.


Phylum Mollusca
Class Bivalvia
Subclass Palaeoheterodonta
Order Unionoida

Superfamily UNIONOIDEA Rafinesque, 1820
Family UNIONIDAE s.s
Subfamily RECTIDENTINAE Modell, 1942
Tribe CONTRADENTINI Modell, 1942

Genus Yaukthwa Konopleva, Pfeiffer, Vikhrev, Kondakov,
Gofarov, Aksenova, Lunn, Chan & Bolotov, 2019

Species Yaukthwa peguensis (Anthony, 1865)

To find out more about Yaukthwa and the other genera split from the Old Trapezoideus, check out:
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