MUSSELpdb | valid sp. Hyriopsis myersiana specimens

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Page last updated
Thu 17 July 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

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species Hyriopsis myersiana (Lea, 1856): specimens
5 available nominal species synonyms (7 total synonyms)

Recent Taxonomic Opinions

Hyriopsis myersiana — Graf & Cummings (2007), Bogan (2010), Vannarattanarat et al. (2013), Zieritz et al. (2016), Lopes-Lima et al. (2017), ... Zieritz et al. (2020), Pfeiffer et al. (2021), Graf & Cummings (2021), Jeratthitikul et al. (2021), Konopleva et al. (2023)
Hyriopsis myersianus — IUCN (2011)
H. myersiana — Konopleva et al. (2019)

Range

Mae Klong and Chao Phraya rivers, Thailand.

Map of Georeferenced Specimens

species map

MNHN_MP_3953 [locality illegible - Asia]	SMRL_2327 Maenam Kwae Noi, Pitsanoluk	USNM_420499 Pasak River, Bus Chim [?], Central Siam
UMMZ_23064 Rahing, N Siam	SMF_220864 Thailand: Wang Nong Am, Pihitsanuloke

Cambodia

MNHN_MP_3883 Cambodge	MNHN_MP_4065 Cambodge	BMNH_MP_0667 Lao Mountains
USNM_83948 Laos Mts., Cambodia

Thailand

BMNH_1931-6-5-47 Angtawng, Siam	SMF_319616 C-Thailand, River Kwae Noi (Maename Sah?) N Phitsanulok	INHS_25286 Chao Phraya River, vicinity of Bang Pa-In, Bang Pa-in, Ayutthaya, Thailand
BMNH_MP_0670 Coast of Siam	MNHN_MP_3972 de la riviere de Salabury (Siam)	MNHN_MP_3939 de la riviere Salabury, Siam
MNHN_MP_3942 de la riviere Salabury, Siam	MNHN_MP_3943 de la riviere Salabury, Siam	MNHN_MP_3949 de la riviere Salabury, Siam
USNM_361360 Gwe Pasak R., Siam	USNM_361360 Gwe Pasak R., Siam	UF_507524 Hanuman River near Wat Charoen Rat Rangsan in Na Khaem. JMP17-49. 14.06768, 101.75508
SMF_188898 Keak Noi, Wang Nok Nang Aen, Prov Pitsanulok	UF_507533 Khamong River at Rt. 3039 in Kaeng Dinso. JMP17-51. 14.07134, 101.96148	UF_507692 Khwae Noi River at Nam Sai Resort on Rt. 3209. TH15-34. 13.92556, 99.49957
UF_507873 Khwae Noi River at resort across stream from Death Railway. TH17-18. 14.103320, 99.167110	UF_507871 Khwae Noi River at Sai Yok SW of Nam Tok Railway Station. TH17-17. 14.215906, 99.057206	UF_507727 Khwae Noi River off Rt. 1026 approx. 7.5 km NE of Ban Tha Ngam. TH16-15. 17.036, 100.369
UF_507674 Khwae Noi River, trib. of Nan River, off Rt. 1296 approx. 2 km east of Rt. 11. TH15-25. 17.01350, 100.33548	SMF_188907 Klong Rapipat, W Saraburi	SMF_319598 Klong Satung, Srakeo
FMNH_162656 Kwae Noi River, Kanchanburi, Thailand	USNM_786187 Kwae Noi River, Thailand	USNM_405729 Kwe [Khwae] Noi, Kanburi, W. Siam
MNHN_MP_3917 Lampoon, Siam	SMF_188908 Lopburi River b. Lopburi	SMF_319632 Mae Glong River, Ban Rai Phothram distr. Ratburi Prov.
SMF_188900 Mae Klong At Bn Rai Potaram, Ratburi Prov.	TMMUBI_35_89 Mae Klong River, Wang Ka Nay, Tha Muang, Kanchanburi	SMF_188901 Mae Nam Kwae Noi, Kanchanburi
SMF_188899 Maeklong River, Ratburi	SMF_14726 Maeklong-Fl. W. Siam	SMF_319619 Maeklong, Ban Pong
SMF_221306 Maenam Kwae Noi, Kanchanaburi	MNHN_MP_3832 Maenam Kwae Noi, Kanchanaburi, Thailande	MNHN_MP_3825 Maenam Kwae Noi, Kanchanburi
SMF_188903 Maenam Kwae Noi, Nam Tok, Kanchaburi Prov.	USNM_786274 Maenam Kwae Noi, Prov. Kanchanburi, Thailand	ANSP_331307 Man Nam Khwae Yai, Ban Nong Bua, Kanchanaburi Prov. Thailand
MCZ_194083 Meklong [Mae Klong] River, Rajaburi, Siam	USNM_365421 Meklong [Mae Klong] River, Rajaburi, Siam	USNM_367446 Meklong [Mae Klong] River, Siam
UMMZ_130073 Menam River, 100 mi upstream from Bangkok, Siam	USNM_367445 Meping River at Raheng, Siam	SMF_14725 N. Siam
USNM_419656 Nan River, Pichit [Phichit], Siam	USNM_419657 Nan River, Pichit [Phichit], Siam	USNM_419704 Nan River, Pichit [Phichit], Siam
USNM_419712 Nan River, Pichit [Phichit], Siam	USNM_786276 Nan River, Pichit, Thailand	SMF_188904 Nan River, Pitchit
SMF_188905 Nan River, Pitsanoluk	SMF_188906 Nan River, Pitsanoluk	BMNH_MP_0669 Nan River, Pitsanoulok
MCZ_254358 Nan River, Pitsanoulok, Thailand	USNM_786190 Nan River, Pitsanoulok, Thailand	USNM_786275 Nan River, Pitsanoulok, Thailand
MNHN_MP_3811 Nan River, pres Pitsanulok, Thailand	FMNH_33008 Pak Nam Po River at Nam Nan, Kam Peng Pet Prov. NW Siam	USNM_363568 Pasak R., Siam
UF_507679 Phak River, trib. of Khwae Noi, at Rt. 1143 east of split with Rt. 1237; Nun River drainage. TH15-26. 17.25347, 100.62858	UF_507654 Ping River off Rt. 107 at Kaeng Pan Tao village. TH15-13. 19.28594, 98.96800	MNHN_MP_2729 Rakeng, North Siam
SMF_319613 River Kwae Noi near Nam Tok	SMF_283239 River Kwae Noi Nom Tok	SMF_319612 River Kwae Noi of Canchaburi
UMMZ_230840 River Kwae Noi, Prov. Kanchanburi, Thailand	TMMUBI_80 River Kwae Noi, Sai Yok	SMF_188902 River Kwai Noi, N of Pitsanulok
SMF_188902 River Kwai Noi, N of Pitsanulok	TMMUBI_79 River Pa sak near Saraburi	ANSP_125569 Siam
ANSP_125572 Siam	ANSP_129776 Siam	ANSP_41087 Siam
ANSP_56515 Siam	BMNH_1860-4-2-21 Siam	BMNH_MP_0662 Siam
BMNH_MP_0664 Siam	BMNH_MP_0666 Siam	BMNH_MP_0668 Siam
BMNH_MP_0668 Siam	BMNH_MP_0671 Siam	BMNH_MP_0671 Siam
MCZ_MP_318 Siam	UMMZ_108035 Siam	UMMZ_108036 Siam
UMMZ_23158 Siam	USNM_73079 Siam	USNM_83949 Siam
USNM_83950 Siam	USNM_83951 Siam	MNHN_MP_3966 Strang Sutrang, sur la riviere Siam
TMMUBI_94 Tha Tra Kraw, Tha Muang, Kanchanaburi	MNHN_MP_3946 Thailand, Maenam Nan, pres de Pitsanulok	UF_446228 Thailand, Phitsanulok Province, King Amphoe, Mae Nam Nan, Klong Ban Mung, Noen Maprang, small stream, 2-3 m wide, gravelly riffles & muddy backwater 16.5606°, 100.6958°
SMF_319631 Thailand: Huai Kaek Noi, Ban La Po, Pitsanolok, Thailand	SMF_319631 Thailand: Huai Kaek Noi, Ban La Po, Pitsanolok, Thailand	SMF_319610 Thailand: Klong Rapipat, Ban Ta Luang
SMF_221305 Thailand: Klong Rapitat, Ban Ta Luang Ayutthai	SMF_319615 Thailand: Maenam Kwae Noi Canchanburi	SMF_319611 Thailand: Maenam MAe Klong Ratburi town
SMF_319617 Thailand: Nan River, Pitchit	SMF_319614 Thailand: Nan River, Pitsanulok	SMF_319618 Thailand: Pasak River Gaeng Koi
ANSP_389043 Thailand: Prihit, Nan River	SMF_220865 Thailand: River Kwae Noi, between Nam Tok an Sai Yok	INHS_25288 trib. Khlong Phra Phong, 20 km E Khlong Hat, Hwy. 3259, Sakaeo, Thailand
BMNH_97-10-7-1 Upper Bangpakong, Siam	USNM_405734 W branch Meklong [Mae Klong] River, Kanburi, W Siam	USNM_405735 W branch Meklong [Mae Klong] River, Kanburi, W Siam
UF_507668 Wang River at Rt. 1102 bridge east of Mae Phrik village. TH15-23. 17.44590, 99.12935	UF_507728 Wang Thong River at Rt. 12 approx. 22 km E of Ban Wang Thong. TH16-16. 16.852, 100.608	UF_507526 Yang River at Rt. 3004 in Na Di. JMP17-50. 14.13651, 101.85750
UF_507719 Yom River approx. 3 km N of Ban Khlong Tan along Rt. 101. TH16-13. 17.200 99.863	UF_507723 Yom River at bridge off Rt. 101 approx. 3 km N of Rt. 102 intersection. TH16-14. 17.551, 99.771	UF_507714 Yom River below dam at Ban Nun Nuea. TH16-12. 18.484, 100.158
UF_507710 Yom River SSW of Ban Nong Muang Khai. TH16-11. 18.252, 100.179

unknown

ANSP_125571 [no locality available - Asia]	BMNH_59-5-23-7 [no locality available - Asia]	BMNH_60-4-3-23 [no locality available - Asia]
MNHN_MP_3983 [no locality available - Asia]	USNM_405748 [no locality available - Asia]

Georeferenced Genbank Vouchers

Thailand

MUMNH_UNI0815. (16S, 28S, COI) Huai Raeng River at Huai Raeng, Mueang, Trat, Thailand (12° 22' 34.3" N, 102° 34' 55.2" E)

MUMNH_UNI0122. (16S, 28S, COI) Nan River at Ban San, Wiang Sa, Nan, Thailand (18° 31' 54.6" N, 100° 46' 03.6" E)

MUMNH_UNI0165. (16S, 28S, 5.8S, COI, ITS1, ND1) Pa Sak River at Tha I-bun, Lom Sak, Phetchabun, Thailand (16° 52' 41.5" N, 101° 19' 45.5" E)

MUMNH_UNI0307. (16S, 28S, COI) Ping River at Ban Tan, Hot, Chiang Mai, Thailand (18° 10' 41.5" N, 98° 37' 50.8" E)

MUMNH_UNI2029. (16S, 28S, COI) Ping River at Kosamphi, Kosamphi Nakhon, Kamphaeng Phet, Thailand (16° 41' 02.8" N, 99° 16' 28.7" E)

MUMNH_UNI0336. (16S, 28S, COI) Ping River, Inthakhin, Mae Taeng, Chiang Mai, Thailand (19° 15' 37.7" N, 98° 58' 17.1" E)

UF_507533 (ICH-02214). (COI) Thailand, Khamong River at Rt. 3039 in Kaeng Dinso (14.071335, 101.961483)

UF_507533 (ICH-02215). (COI) Thailand, Khamong River at Rt. 3039 in Kaeng Dinso (14.071335, 101.961483)

UF_507692 (2012-0426). (COI) Thailand, Khwae Noi River at Nam Sai Resort on Rt. 3209 (13.92556, 99.49957)

UF_507873 (ICH-02093). (COI) Thailand, Khwae Noi River at resort across stream from Death Railway (14.10332, 99.16711)

UF_507871 (ICH-02089). (COI) Thailand, Khwae Noi River at Sai Yok SW of Nam Tok Railway Station (14.215906, 99.057206)

UF_507871 (ICH-02090_AHE). (COI) Thailand, Khwae Noi River at Sai Yok SW of Nam Tok Railway Station (14.215906, 99.057206)

UF_507871 (ICH-02090). (COI, SRA) Thailand, Khwae Noi River at Sai Yok SW of Nam Tok Railway Station (14.215906, 99.057206)

UF_507871 (ICH-02091). (COI) Thailand, Khwae Noi River at Sai Yok SW of Nam Tok Railway Station (14.215906, 99.057206)

UF_507727 (ICH-00686). (COI) Thailand, Khwae Noi River off Rt. 1026 approx. 7.5 km NE of Ban Tha Ngam (17.035996, 100.369392)

UF_507654 (2014-0688). (COI) Thailand, Ping River off Rt. 107 at Kaeng Pan Tao village (19.28594, 98.968)

UF_507654 (2014-0689). (COI) Thailand, Ping River off Rt. 107 at Kaeng Pan Tao village (19.28594, 98.968)

UF_507654 (2014-0690). (COI) Thailand, Ping River off Rt. 107 at Kaeng Pan Tao village (19.28594, 98.968)

UF_507654 (2014-0691). (COI) Thailand, Ping River off Rt. 107 at Kaeng Pan Tao village (19.28594, 98.968)

RMBH_biv_1270_1. (16S, 28S, COI) Thailand, Sok River at “The Elephant Camp,” Khlong Phanom National Park (8.8800, 98.6800)

RMBH_biv_1271. (COI) Thailand, Sok River at Wat Phanom (8.8200, 98.8200)

UF_507668 (2014-0721). (COI) Thailand, Wang River at Rt. 1102 bridge east of Mae Phrik village (17.4459, 99.12935)

UF_507728 (ICH-00681). (COI) Thailand, Wang Thong River at Rt. 12 approx. 22 km E of Ban Wang Thong (16.852211, 100.608203)

UF_507728 (ICH-00682). (COI) Thailand, Wang Thong River at Rt. 12 approx. 22 km E of Ban Wang Thong (16.852211, 100.608203)

UF_507526 (ICH-02206). (COI) Thailand, Yang River at Rt. 3004 in Na Di (14.136505, 101.857502)

UF_507719 (ICH-00671). (COI) Thailand, Yom River approx. 3 km N of Ban Khlong Tan along Rt. 101 (17.200491, 99.862748)

UF_507723 (ICH-00678). (COI) Thailand, Yom River at bridge off Rt. 101 approx. 3 km N of Rt. 102 intersection (17.551068, 99.771263)

UF_507714 (ICH-00659). (COI) Thailand, Yom River below dam at Ban Nun Nuea (18.484272, 100.157609)

UF_507714 (ICH-00660). (COI) Thailand, Yom River below dam at Ban Nun Nuea (18.484272, 100.157609)

UF_507710 (ICH-00647). (COI) Thailand, Yom River SSW of Ban Nong Muang Khai (18.252339, 100.178668)

UF_507710 (ICH-00648). (COI) Thailand, Yom River SSW of Ban Nong Muang Khai (18.252339, 100.178668)

UF_507710 (ICH-00649). (COI) Thailand, Yom River SSW of Ban Nong Muang Khai (18.252339, 100.178668)

MUMNH_UNI0309. (16S, 28S, COI) Wang River at Wang Man, Sam Ngao, Tak, Thailand (17° 12' 15.4" N, 99° 05' 54.0" E)

MUMNH_UNI0049. (16S, 28S, COI) Yom River at Huai Mai, Song, Pharae, Thailand (18° 25' 39.0" N, 100° 10' 20.4" E)