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Page last updated
Wed 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!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Gonideinae | Rectidentini | Hyriopsis

species Hyriopsis sakhonensis Pfeiffer, Graf, Cummings & Page, 2021: specimens
     1 available nominal species synonym

Recent Taxonomic Opinions

Hyriopsis sakhonensis — Pfeiffer et al. (2021), Jeratthitikul et al. (2021), Konopleva et al. (2023)

Range

Songkhram Basin, Thailand.

Map of Georeferenced Specimens

species map

specimen
NCSM_43563
Asia, Mekong Basin/Mun R. Thailand, Nakhon Phanom Maenam (-River) Sri-Songkram, Amphur (District) Sri-Songkram, Northeast Thailand, [point estimated at center Sri Songkram, 15.6 mi NE of Na Wa]. 17.39972° N, 104.7831° E

Thailand

specimen
SMF_220872
Maenam Songkram Wannonivat

specimen
UF_507638
Songkhram River at confluence with Mao River. TH15-11. 17.70202, 104.25579

specimen
UF_507649
Songkhram River at confluence with Yam River. TH15-12. 17.70906, 104.07671

specimen
UF_507629
Songkhram River at Rt. 2390 bridge. TH15-10. 17.67602, 104.28566

specimen
UF_507786
Songkhram River near confluence with Un River at bridge N of Ban Si Songkhram. TH16-33. 17.634, 104.246

specimen
SMF_319587
Songkram River, Wannonivat, Sakon Nakhon

specimen
UF_507778
Un River at bridge approx. 3 km E of Ban Na Wha. TH16-32. 17.480, 104.129

UF_564757.

Georeferenced Genbank Vouchers

Thailand

MUMNH_UNI0903. (16S: MT993660, 28S: MT993712, COI: MT993514, go to Genbank) Songkharm River at Chai Buri, Tha Uthen, Nakhon Phanom, Thailand (17° 39' 05.5" N, 104° 27' 45.1" E).

MUMNH_UNI0908. (16S: MT993661, 28S: MT993713, COI: MT993515, go to Genbank) ditto.

MUMNH_UNI2204. (16S: MT993662, 28S: MT993714, COI: MT993516, go to Genbank) Songkharm River at Tha Kon, Akat Amnuai, Sakon Nakhon, Thailand (17° 46' 43.2" N, 103° 57' 10.2" E).

UF_507629 (2014-0651). (COI: MT905551, go to Genbank) Thailand, Songkhram River at Rt. 2390 bridge (17.67602, 104.28566).

UF_507786 (ICH-00803_AHE). (COI: MT905794, go to Genbank) Thailand, Songkhram River near confluence with Un River at bridge N of Ban Si Songkhram (17.634146, 104.24573).

UF_507786 (ICH-00803). (COI: MT905793, SRA: SRX8934365, go to Genbank) ditto.