Bivalvia | ... | Unionoidea | Unionidae | Gonideinae | Limnoscaphini | Contradentina | Trapezoideus
1 available nominal species synonym
Trapezoideus exolescens — Graf & Cummings (2007), IUCN (2010), He & Zhuang (2013)
Trapezoideus exolescens exolescens — Ramakrishna & Dey (2007)
Trapezoideus foliaceus — Bolotov et al. (2017), Konopleva et al. (2019), Pfeiffer et al. (2019), Konopleva et al. (2019), Bolotov et al. (2020), ... Liu et al. (2024), Zieritz et al. (2024), Wu et al. (2024), Jeratthitikul et al. (2024), Campbell & Lydeard (2026)
Dawei River, Myanmar and Mae Klong, Thailand. (East Asia: AS5)


USNM_84161
Tavoy, Burmah
type
Unio foliaceus Gould, 1843

SMF_188887
Maenam On S Ngao

SMRL_2474
River Nam on, S of Ngao, Thailand

ANSP_H18990
Thailand: Maenam On at Ban Pong, S Ngao, Thailand

SMF_319372
Thailand: Nam Mae On b. Ban Pong S Ngao

SMF_220843
Thailand: River Nam On, S of Ngao

UMMZ_110868
Brahmaputra River, Sadiya, Upper Asssam, India

USNM_150049
India

UMMZ_110863
Burma

ANSP_125657
New Zealand

UF_507870
Khayeng River off Rd. 3272 just E of Rd. 6101. TH17-16. 14.649716, 98.576681

FMNH_33020
Klong Klung River, Kam Peng Pet Prov., NW Siam

USNM_786212
Klong Ta Luang, Noen Glam, Ban Wattayom, Pitsanulok, Thailand

USNM_365433
Lam Tong Lang, N of Pak Jong, Siam

UF_507869
Lin Thin River, behind rubber tree plantation on small road off Rd. 323, just S of Wat Choeng Khao. TH17-15. 14.544038, 98.784663

INHS_85713
Mae Kuang River, Mae Won Resort, Chiang Mai Province, Thailand

INHS_49265
Mae Nam Khwae Noi River, Hwy. 323 bridge, near Ban U Rang, approx. 10 km NE Thong Pha Phum, Kanchanaburi, Thailand

INHS_85715
Mae Wan River, Mae Wan village, N of Hwy. 11B, , Chiang Mai Province, Thailand

UF_507867
Malai River 2 km N of river mouth at Vajiralongkorn reservoir. TH17-08. 15.135066, 98.369543

UF_507866
Malai River at northern end of Rd. 3202 E of Ban Chong Lu. TH17-07. 15.157333, 98.349215

UF_507502
Muak Lek River at . JMP17-44. 14.74474, 101.18954

UF_507879
Pachee River off Rd. 3085. TH17-25. 13.918134, 99.382270

UF_507458
Phachi River at resort off 6007 in Ta Nao Si. JMP17-29. 13.47906, 99.27287

UF_507457
Phachi River off unnamed road near HWY 6007/6607 in Tha Khoei. JMP17-28. 13.51569, 99.34797

UF_507676
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_507650
Ping River off Rt. 107 at Kaeng Pan Tao village. TH15-13. 19.28594, 98.96800

SMF_188748
Ping River, 1 km N of Chaing Mai

UF_507864
Pracham Mai River at Rd. 3272. TH17-02. 14.659577, 98.534232

UF_507697
Pracham Mai River at Rt. 3272 bridge. TH15-37. 14.65983, 98.53422

UF_507702
Song Karia River at Rt. 323. TH15-39. 15.22318, 98.44648

UF_507883
Taphoen River at Rt. 3086. TH17-36. 14.430433, 99.502775

UF_507881
Taphoen River Of Rt. 3086. TH17-35. 14.665890, 99.443780

UF_507695
Taphoen River, trib. of Khwae Yai River. TH15-35. 14.20021, 99.48396

UF_463056
Thailand, Chiang Mai, Mae Nam Ping, on Highway 7 at km 62, 19.286°, 98.69°

UF_446233
Thailand, Kanchanaburi province, Huay Ka Yeng, Mae Nam Kwae, Kring Ta Ko, small rocky & sandy stream, 1-3m wide, 14.7528°, 98.5006°

UF_446232
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°

UF_346489
Thailand, Uthai Thani Province, Huai Kha Khaeng Reserve, Huai Kha Khaeng River, 15.2758°, 99.1553°

UF_346488
Thailand, Uthai Thani Province, Huai Kha Khaeng Reserve, Huai Mae Di River, 15.2758°, 99.1553°

UF_346495
Thailand, Uthai Thani Province, Huai Kha Khaeng Reserve, Huai Mae Di River, 15° 16' 33" N, 99° 9' 19" E

SMF_319374
Thailand: Huai Rai, Huai Rai Station

SMF_319373
Thailand: River Kwae Noi Canchanburi

UF_507680
Thap Salao River, trib. of Sakae Krang River, north of Rt. 3438. TH15-29. 15.42611, 99.65745

UF_507865
Trib of Pracham Mai River. TH17-03. 14.69334, 98.50639

UF_507698
Unnamed trib. of Khwae Noi River at Thong Pha Phum Vale Resort on Rt. 323. TH15-38. 14.75825, 98.64816

UF_507669
Wang River at Rt. 1102 bridge east of Mae Phrik village. TH15-23. 17.44590, 99.12935

UF_507716
Yom River below dam at Ban Nun Nuea. TH16-12. 18.484, 100.158
UF_507870 (ICH-02081). (COI: MT905860, go to GenBank) Thailand, Khayeng River off Rd. 3272 just E of Rd. 6101 (14.649716, 98.576681) .
UF_507870 (ICH-02082). (COI: MT905861, go to GenBank) ditto.
UF_507867 (ICH-02060). (COI: MT905855, go to GenBank) Thailand, Malai River 2 km N of river mouth at Vajiralongkorn reservoir (15.135066, 98.369543) .
UF_507867 (ICH-02061). (COI: MT905856, go to GenBank) ditto.
UF_507867 (ICH-02062). (COI: MT905857, go to GenBank) ditto.
UF_507866 (ICH-02065). (COI: MT905858, go to GenBank) Thailand, Malai River at northern end of Rd. 3202 E of Ban Chong Lu (15.157333, 98.349215) .
UF_507866 (ICH-02066). (COI: MT905859, go to GenBank) ditto.
UF_507502 (ICH-02170). (COI: MT905895, go to GenBank) Thailand, Muak Lek River at Rt. 2224 in Muak Lek (14.744737, 101.18954).
UF_507502 (ICH-02171). (COI: MT905896, go to GenBank) ditto.
UF_507502 (ICH-02172). (COI: MT905897, go to GenBank) ditto.
UF_507502 (ICH-02173). (COI: MT905898, go to GenBank) ditto.
UF_507879 (ICH-02104). (16S: MH346024, 28S: MH346004, COI: MH345984, go to GenBank) Thailand, Pachee River off Rd. 3085 (13.918134, 99.38227) .
UF_507879 (ICH-02105). (16S: MH346025, 28S: MH346005, COI: MH345985, go to GenBank) ditto.
UF_507676 (2014-0742). (COI: MT905596, go to GenBank) Thailand, Phak River, trib. of Khwae Noi, at Rt. 1143 east of split with Rt. 1237; Nun River drainage (17.25347, 100.62858).
UF_507676 (2014-0743). (COI: MT905597, go to GenBank) ditto.
UF_507676 (2014-0744). (COI: MT905598, go to GenBank) ditto.
UF_507676 (2014-0745). (COI: MT905599, go to GenBank) ditto.
UF_507650 (2014-0681). (COI: MT905558, go to GenBank) Thailand, Ping River off Rt. 107 at Kaeng Pan Tao village (19.28594, 98.968).
UF_507864 (ICH-02055). (COI: MT905852, go to GenBank) Thailand, Pracham Mai River at Rd. 3272 (14.659577, 98.534232) .
UF_507864 (ICH-02056). (COI: MT905853, go to GenBank) ditto.
UF_507697. (28S: MH345999, COI: MH345979, go to GenBank) Thailand, Pracham Mai River at Rt. 3272 bridge (14.65983, 98.53422).
UF_507697 (2012-0442). (COI: MT905464, go to GenBank) ditto.
UF_507697 (2012-0444). (COI: MT905465, go to GenBank) ditto.
UF_507697 (2012-0446). (COI: MT905466, go to GenBank) ditto.
UF_507702 (2012-0456). (COI: MT905473, go to GenBank) Thailand, Song Karia River at Rt. 323 (15.22318, 98.44648).
UF_507702 (2012-0459). (COI: MT905474, go to GenBank) ditto.
UF_507702 (2012-0460). (COI: MT905475, go to GenBank) ditto.
UF_507695 (2012-0434). (COI: MT905456, go to GenBank) Thailand, Taphoen River, trib. of Khwae Yai River (14.20021, 99.48396).
UF_507695 (2012-0435). (COI: MT905457, go to GenBank) ditto.
UF_507695 (2012-0436). (COI: MT905458, go to GenBank) ditto.
UF_507695 (2012-0437). (COI: MT905459, go to GenBank) ditto.
UF_507680 (2012-0401). (COI: MT905435, go to GenBank) Thailand, Thap Salao River, trib. of Sakae Krang River, north of Rt. 3438 (15.426106, 99.657445).
UF_507680 (2012-0402). (COI: MT905436, go to GenBank) ditto.
UF_507680 (2012-0403). (COI: MT905437, go to GenBank) ditto.
UF_507865 (ICH-02058). (COI: MT905854, SRA: SRX5278557, go to GenBank) Thailand, Trib of Pracham Mai River (14.69334, 98.50639) .
UF_507865 (ICH-2059). (16S: MH346023, 16S: MZ684085, 18S: MZ684071, 28S: MH346003, 28S: MZ684038, COI: MH345983, COI: MZ678758, ND1: MZ695091, go to GenBank) ditto.
UF_507698 (2012-0447). (COI: MT905467, go to GenBank) Thailand, Unnamed trib. of Khwae Noi River at Thong Pha Phum Vale Resort on Rt. 323 (14.75825, 98.64816).
UF_507698 (2012-0448). (COI: MT905468, go to GenBank) ditto.
UF_507698 (2012-0449). (COI: MT905469, go to GenBank) ditto.
UF_507698 (2012-0450). (COI: MT905470, go to GenBank) ditto.
UF_507669 (2014-0723). (COI: MT905582, go to GenBank) Thailand, Wang River at Rt. 1102 bridge east of Mae Phrik village (17.4459, 99.12935).
UF_507669 (2014-0724). (COI: MT905583, go to GenBank) ditto.
UF_507669 (2014-0725). (COI: MT905584, go to GenBank) ditto.
UF_507716 (ICH-00665). (COI: MT905736, go to GenBank) Thailand, Yom River below dam at Ban Nun Nuea (18.484272, 100.157609).
UF_507716 (ICH-00666). (COI: MT905737, go to GenBank) Thailand, Yom River below dam at Ban Nun Nuea (18.484272, 100.157609) .
MUMNH_UNI0057. (16S: MT993692, 28S: MT993744, COI: MT993545, go to GenBank) Yom River at Huai Mai, Song, Pharae, Thailand (18° 25' 39.0" N, 100° 10' 20.4" E).
2012-0443. (16S: MH346019, go to GenBank)
2012-0445. (16S: MH346020, 28S: MH346000, COI: MH345980, go to GenBank)
2012-0457. (16S: MH346021, 28S: MH346001, COI: MH345981, go to GenBank)
2012-0458. (16S: MH346022, 28S: MH346002, COI: MH345982, go to GenBank)