MUSSELp

MUSSELpdb

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Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness by
Taxonomy

Geography

Summary

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Central America

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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Gonideinae | Contradentini | Physunio

species Physunio modelli Brandt, 1974: specimens

1 available nominal species synonym

Recent Taxonomic Opinions

Physunio modelli — Graf & Cummings (2007), Bogan (2010), IUCN (2012), Lopes-Lima et al. (2017), Bolotov et al. (2017), ... Pfeiffer et al. (2021), Graf & Cummings (2021), Jeratthitikul et al. (2021), Bolotov et al. (2022), Konopleva et al. (2023)
Contradens sp. — Pfeiffer & Graf (2015), Konopleva et al. (2017)
Physunio cf. modelli — Bolotov et al. (2017)
Contradens sp. 1 — Bolotov et al. (2017)
Physunio sp. ‘Contradens’ — Bolotov et al. (2017), Bolotov et al. (2018), Huang et al. (2019), Konopleva et al. (2019), Konopleva et al. (2019), Bolotov et al. (2020)
Physunio sp. 2 — Wu et al. (2021)

Range

Mekong Basin, Indochina.

Map of Georeferenced Specimens

specimens map of Physunio modelli

MUSSELp Specimen Records

image of lot NCSM_45068
NCSM_45068
Asia, South China Sea, Malaysia Minor Coastal (South China Sea, misc. creek tribs) Vietnam, Duyen hai mien trung (South Central), Khánh Hòa Co. Nha Trang area, [pointestimated at Dien Khanh], 12.26038° N, 106.283° E

Cambodia

image of lot UA_21038
UA_21038
Beung Dang Teuk Leach Community Fishery Pursat Province, Cambodia

image of lot MNHN_MP_3856
MNHN_MP_3856
de Cambodge, Siam

image of lot BMNH_MP_D369
BMNH_MP_D369
Lao Mountains

image of lot UMMZ_304653
UMMZ_304653
Pursat River, just downstream (north) of Highway 5 bridge, Pursat City, Cambodia 12.53308 103.91947

image of lot UF_507389
UF_507389
Tonle Sekong River, 1.6 miles upstream from AH11 Bridge. CA16-03. 13.54504, 106.01353

image of lot UF_507383
UF_507383
Tonle Srepok River, major bridge crossing on road from Stung Treng to Ban Lung. Srae Angkrorng, Ratanakiri, Cambodia. CA16-01. 13.44339, 106.60329

image of lot UF_507407
UF_507407
Unknown tributary of Mekong just N of Phumi Prêk Preah on AH11. CA16-06. 13.15123, 106.14521

Laos

image of lot ANSP_H19018
ANSP_H19018
Laos: Mekong at Pakse

image of lot ANSP_H19006
ANSP_H19006
Mekong River, Tateng, near Pakse, Laos

image of lot MNHN_MP_3568
MNHN_MP_3568
Menam, Laos

Thailand

image of lot UF_507515
UF_507515
Chakkarat River at Rt. 226 in Nong Phluang. JMP17-48. 15.05821, 102.39806

image of lot UF_507489
UF_507489
Chi River downstream of HWY 225 in Talat Raeng. JMP17-37. 15.76964, 101.81476

image of lot UF_507485
UF_507485
Chi River off of Hwy 202 in Lat Yai. JMP17-36. 15.75328, 102.25225

image of lot UF_507863
UF_507863
Dom Yai River at Rt. 2248 bridge approx. 15 km ESE of Nam Yuen. TH16-59. 14.445989, 105.121116

image of lot USNM_786258
USNM_786258
Huai Gaeng Yang, Pibun Mangsahan, Chong Mek, Ubon Province, Thailand

image of lot ANSP_H19015
ANSP_H19015
Huai Sam Mo at Kro Rapids near Bang Gaeng Kro, Chaiyapum Province, Thailand

image of lot ANSP_H19009
ANSP_H19009
Huai Ya, Gaeng Kro, Chaijapum, Thailand

image of lot UF_507843
UF_507843
Khulu River at Rt. 2050 bridge approx. 9.5 km SSW of Trakan Phuet Phon. TH16-51. 15.547125, 104.976925

image of lot MNHN_MP_2793
MNHN_MP_2793
Klong Sam Mo at Gaeng Kro, Ban Sam Mo Chaiyapum Province, Thailand

image of lot USNM_786318
USNM_786318
Klong Sam Mo at Gaeng Kro, Ban Sam Mo Chaiyapum Province, Thailand

image of lot ANSP_H18992
ANSP_H18992
Klong Sam Mo at Kro Rapids, Ban Sam Mo Chaiyapum Province, Thailand

image of lot USNM_786310
USNM_786310
Klong Sam Mo, Gaeng Kro, Thailand

image of lot USNM_786310
USNM_786310
Klong Sam Mo, Gaeng Kro, Thailand

image of lot SMF_188874
SMF_188874
Klong Sam Mo; Distr. Gaeng Kro; Prov. Chiayapum

image of lot UF_507745
UF_507745
Kong Si River at bridge ESE of Ban Kumphawapi. TH16-21. 17.097, 102.989

image of lot ANSP_336141
ANSP_336141
Lam Chi at Amphoe Kosum Phisai (on HWY 208, about 34 km due SE of Khon Kaen

image of lot SMF_188871
SMF_188871
Lam Chi river at Ta Sabaeng, Roi Ett

image of lot SMF_188878
SMF_188878
Lam Chi River, Mahachanachai, Ubon Prov.

image of lot ANSP_H19013
ANSP_H19013
Lam Chi River, Mahachanachai, Ubon Ratchathani, Thailand

image of lot SMF_188877
SMF_188877
Lam Pao (Lam Than) Prov. Kalasin

image of lot UF_507737
UF_507737
Loei River at bridge S of Ban Wang Saphung. TH16-20. 17.288, 101.766

image of lot TMMUBI_171
TMMUBI_171
Lom Dom Yai River

image of lot SMF_188879
SMF_188879
Maenam Choen, W Kon Gaen

image of lot SMF_319379
SMF_319379
Maenam Pong at Pa Nok Kao

image of lot SMRL_2484
SMRL_2484
Maenam Pong, Pa NokKao; Thailand

image of lot SMF_188873
SMF_188873
Mun River at Ban Ta Thum, Surin

image of lot UF_507602
UF_507602
Mun River at confluence with Chi River. TH15-01. 15.18188, 104.71430

image of lot SMF_188880
SMF_188880
Mun River bei Rasi Salai; Sri Saket

image of lot UF_507465
UF_507465
Mun River, 2.8 km North of Ban Taklang in Na Nong Phai. JMP17-32. 15.29274, 103.50744

image of lot UF_507614
UF_507614
Mun River. TH15-04. 15.31534, 103.62985

image of lot UF_507624
UF_507624
Pao River, trib. of Chi River at Rt. 214 bridge; Mun River drainage. TH15-06. 16.34022, 103.57584

image of lot MNHN_MP_3087
MNHN_MP_3087
Pong River at Pong Nip Dam, Kaen Province, Thailand

image of lot SMF_319380
SMF_319380
Pong River dam N Kon Kaen

image of lot SMF_188875
SMF_188875
Pong river, Bridge Highway 27, N of Kon Gaen

image of lot SMF_188876
SMF_188876
Pong River, Near Dam N Kon Gaen

image of lot UF_507768
UF_507768
Songkhram River at bridge W of Ban Na Si Nuan on Rt. 2281. TH16-30. 17.729, 103.411

image of lot SMF_319377
SMF_319377
Thailand Pao (Lam Tum) at Kalasin

image of lot UF_346063
UF_346063
Thailand, Khon Kaen Province, 1.4km E intersection Highways 2038 and 12 Deep Muddy river, red clay banks, on rocks, wood and silty bottom 220 meters, 16.4833°, 102.4167°

image of lot ANSP_H19012
ANSP_H19012
Thailand: Lam Pao at Kalasin

image of lot ANSP_H19011
ANSP_H19011
Thailand: Loei Prov., Maenam Pong at Ban Pa Nok Kao

image of lot SMF_220841
SMF_220841
Thailand: Maenam Pong at Pong Nip Dam; Prov. Kon Kaen

image of lot SMF_220841
SMF_220841
Thailand: Maenam Pong at Pong Nip Dam; Prov. Kon Kaen

image of lot SMF_319378
SMF_319378
Thailand: Mun River Ban Ta Thum, Surin

image of lot ANSP_H19010
ANSP_H19010
Thailand: Pibun, Huai Gaeng Yang, near Chong Mek

image of lot SMF_205128
SMF_205128
Thailand: Pong river at Ban Pa Nok Kao, Loei

image of lot ANSP_H19014
ANSP_H19014
Thailand: Songkram River at Wannonivat [= Wanon Niwat], Sakon Nakon Prov.

UF_346061_02. Thailand, Khon Kaen Province, 1.4km E intersection Highways 2038 and 12 Deep Muddy river, red clay banks, on rocks, wood and silty bottom 220 meters, 16° 29' N, 102° 25' E

Genbank Vouchers

Georeferenced Genbank Vouchers

Cambodia

UF_507389 (ICH-00439). (COI: MT905627, go to Genbank) Cambodia, Tonle Sekong River, 1.6 miles upstream from AH11 Bridge (13.545038, 106.013527).

UF_507389 (ICH-00440). (COI: MT905628, go to Genbank) ditto.

UF_507383 (ICH-00419). (COI: MT905617, go to Genbank) Cambodia, Tonle Srepok River, major bridge crossing on road from Stung Treng to Ban Lung (13.443388, 106.603294).

UF_507383 (ICH-00420). (COI: MT905618, go to Genbank) ditto.

UF_507383 (ICH-00421). (COI: MT905619, go to Genbank) ditto.

UMMZ_304653. (16S: KP795055, 28S: KP795017, COI: KP795035, go to Genbank) Pursat River, just downstream (north) of Highway 5 bridge, Pursat City, Cambodia 12.53308 103.91947.

Thailand

MUMNH_UNI0557. (16S: MT993690, 28S: MT993742, COI: MT993543, H3: MG582062, go to Genbank) Songkhram River at Ban Ya, Nong Han, Udon Thani, Thailand (17° 23' 44.5" N, 103° 18' 01.7" E).

UF_507515 (ICH-02186). (COI: MT905901, go to Genbank) Thailand, Chakkarat River at Rt. 226 in Nong Phluang (15.058209, 102.398061).

UF_507489 (ICH-02153). (COI: MT905888, go to Genbank) Thailand, Chi River downstream of HWY 225 in Talat Raeng (15.76964, 101.81476).

UF_507489 (ICH-02154). (COI: MT905889, SRA: SRX8934371, go to Genbank) ditto.

UF_507489 (ICH-02155). (COI: MT905890, go to Genbank) ditto.

UF_507485 (ICH-02146). (COI: MT905885, go to Genbank) Thailand, Chi River off of Hwy 202 in Lat Yai (15.75328, 102.25225).

UF_507485 (ICH-02147). (COI: MT905886, go to Genbank) ditto.

UF_507485 (ICH-02148). (COI: MT905887, go to Genbank) ditto.

UF_507863 (ICH-01198). (COI: MT905849, go to Genbank) Thailand, Dom Yai River at Rt. 2248 bridge approx. 15 km ESE of Nam Yuen (14.445989, 105.121116) .

UF_507863 (ICH-01199). (COI: MT905850, go to Genbank) ditto.

UF_507863 (ICH-01200). (COI: MT905851, go to Genbank) ditto.

UF_507745 (ICH-00719). (COI: MT905766, go to Genbank) Thailand, Kong Si River at bridge ESE of Ban Kumphawapi (17.09692, 102.988512).

UF_507745 (ICH-00720). (COI: MT905767, go to Genbank) ditto.

UF_507745 (ICH-00721). (COI: MT905768, go to Genbank) ditto.

UF_507745 (ICH-00722). (COI: MT905769, go to Genbank) ditto.

UF_507737 (ICH-00703). (COI: MT905761, go to Genbank) Thailand, Loei River at bridge S of Ban Wang Saphung (17.287783, 101.765735).

UF_507737 (ICH-00704). (COI: MT905762, go to Genbank) ditto.

UF_507737 (ICH-00705). (COI: MT905763, go to Genbank) ditto.

UF_507614 (2014-0594). (COI: MT905521, go to Genbank) Thailand, Mun River (15.315337, 103.62985).

UF_507614 (2014-0595). (COI: MT905522, go to Genbank) ditto.

UF_507614 (2014-0596). (COI: MT905523, go to Genbank) ditto.

UF_507614 (2014-0597). (COI: MT905524, go to Genbank) ditto.

UF_507602 (2014-0560). (COI: MT905508, go to Genbank) Thailand, Mun River at confluence with Chi River (15.18188, 104.7143).

UF_507465 (ICH-02115). (COI: MT905875, go to Genbank) Thailand, Mun River, 2.8 km North of Ban Taklang in Na Nong Phai (15.29274, 103.50744).

UF_507624 (2014-0619). (COI: MT905536, go to Genbank) Thailand, Pao River, trib. of Chi River at Rt. 214 bridge; Mun River drainage (16.34022, 103.57584).

UF_507624 (2014-0620). (COI: MT905537, go to Genbank) ditto.

UF_507624 (2014-0621). (COI: MT905538, go to Genbank) ditto.

UF_507768 (ICH-00784). (COI: MT905786, go to Genbank) Thailand, Songkhram River at bridge W of Ban Na Si Nuan on Rt. 2281 (17.72947, 103.410732).

UF_507768 (ICH-00785). (COI: MT905787, go to Genbank) ditto.

UF_507768 (ICH-00786). (COI: MT905788, go to Genbank) ditto.

UF_507768 (ICH-00787). (COI: MT905789, go to Genbank) ditto.

RMBH_biv_125_2. (16S: KX865654, 28S: KX865754, COI: KX865883, go to Genbank) Thailand: Mekong River basin, Chi River.

RMBH_biv_125_3. (16S: KX865655, 28S: KX865755, COI: KX865884, go to Genbank) ditto.

RMBH_biv_131. (28S: KX865759, COI: KX865888, go to Genbank) ditto.

RMBH_biv_131_1. (28S: KX865756, COI: KX865885, go to Genbank) ditto.

RMBH_biv_131_2. (28S: KX865757, COI: KX865886, go to Genbank) ditto.

RMBH_biv_131_3. (28S: KX865758, COI: KX865887, go to Genbank) ditto.

RMBH_biv_205_1. (28S: KY561659, COI: KY561627, go to Genbank) Thailand: Mekong River basin, Phong River.

RMBH_biv_205_2. (28S: KY561660, COI: KY561628, go to Genbank) ditto.

RMBH_biv_205_3. (28S: KY561661, COI: KY561629, go to Genbank) ditto.