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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!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Gonideinae | Contradentini | Yaukthwa

species Yaukthwa zayleymanensis (Preston, 1912): specimens
     1 available nominal species synonym (5 total synonyms)

Recent Taxonomic Opinions

Trapezoideus exolescens exolescensRamakrishna & Dey (2007)
Trapezoideus exolescensHe & Zhuang (2013)
Trapezoideus subclathratusBolotov et al. (2017)
Yaukthwa zayleymanensisKonopleva et al. (2019), Bolotov et al. (2020), Pfeiffer et al. (2021), Graf & Cummings (2021), Bolotov et al. (2022)

Range

Irrawaddy River, Myanmar.

Map of Georeferenced Specimens

species map


specimen
BMNH_MP_D420

Sheinmazar Yarklund


Myanmar

specimen
CAS_180793

Ayeryarwaddy River, across from Myint Gyant village.., Mandalay Division, Burma. 21.47327, 95.2973

specimen
UA_20733

Ayeryarwaddy River, mud bank on E side of river, Mandalay Division, Burma. 21.48187, 95.30501

specimen
BMNH_MP_D331

Bhamo

specimen
CAS_180855

BURMA [UNION OF MYANMAR]: Ayeyarwady River: Sagaing Division: Mingon: sandy island 0.78 mi N of Mingon 22.05815, 96.02353

specimen
BMNH_MP_D197

Shainmagah, Burma [95.985 22.283]

specimen
UMMZ_110870

Zayleyman, India

specimen
SMF_3615

Zayleyman, Ob. Birma

specimen
SMF_3615

Zayleyman, Ob. Birma

Georeferenced Genbank Vouchers


Myanmar

RMBH_biv_679_1. (16S: MN307261, 28S: MN307203, COI: MN275074, go to Genbank) Myanmar: Ayeyarwady Basin, "small stream''.

RMBH_biv_679_2. (16S: MN307262, 28S: MN307204, COI: MN275075, go to Genbank) ditto.

RMBH_biv_679_3. (COI: OL597658, go to Genbank) ditto.

RMBH_biv_665_1. (16S: MN307260, 28S: MN307202, COI: MN275073, go to Genbank) Myanmar: Ayeyarwady Basin, Bani River.

RMBH_biv_665_3. (COI: OL597656, go to Genbank) ditto.

RMBH_biv_899_1. (COI: OL597659, go to Genbank) Myanmar: Ayeyarwady Basin, Lamon Chaung Stream.

RMBH_biv_899_2. (COI: OL597660, go to Genbank) ditto.

RMBH_biv_963_1. (COI: OL597666, go to Genbank) Myanmar: Ayeyarwady Basin, Mogaung River.

RMBH_biv_963_2. (COI: OL597667, go to Genbank) ditto.

RMBH_biv_963_3. (COI: OL597668, go to Genbank) ditto.

RMBH_biv_917_2. (COI: OL597661, go to Genbank) Myanmar: Ayeyarwady Basin, Mole Stream.

RMBH_biv_917_3. (COI: OL597662, go to Genbank) ditto.

RMBH_biv_918_1. (COI: OL597663, go to Genbank) ditto.

RMBH_biv_918_2. (COI: OL597664, go to Genbank) ditto.

RMBH_biv_918_3. (COI: OL597665, go to Genbank) ditto.

RMBH_biv_448_1. (28S: OL598393, COI: OL597654, go to Genbank) Myanmar: Ayeyarwady River near Mandalay.

RMBH_biv_448_2. (COI: OL597655, go to Genbank) ditto.

RMBH_biv_666_6. (COI: OL597657, go to Genbank) MYANMAR: Bani River near Bangong village, 19.3247°N, 94.9839°E, Ayeyarwady Basin.