MUSSELpdb | valid sp. Lens micropterus specimens

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Page last updated
Wed 1 October 2025

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

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species Lens micropterus (Morelet, 1866): specimens
10 available nominal species synonyms (15 total synonyms)

Recent Taxonomic Opinions

Physunio micropterus — Graf & Cummings (2007), Bogan (2010), IUCN (2012), Zieritz et al. (2018), Do et al. (2018), Konopleva et al. (2019), Ng et al. (2020), Graf & Cummings (2021)
Physunio semialatus — Graf & Cummings (2007), Bogan (2010)
Contradens inaequalis — Graf & Cummings (2007), Zieritz et al. (2018), Konopleva et al. (2019), Graf & Cummings (2021)
Uniandra inaequalis — Bogan (2010)
Trapezoideus exolescens — He & Zhuang (2013)
Uniandra contradens — Bogan & Do (2014)
Contradens contradens — Do et al. (2018), Jeratthitikul et al. (2019), Ng et al. (2020)
Contradens crossei — Jeratthitikul et al. (2019), Konopleva et al. (2019), Bolotov et al. (2020), Graf & Cummings (2021)
Contradens comptus — Konopleva et al. (2019)
Lens micropterus — Pfeiffer et al. (2021), Bolotov et al. (2022), Zieritz et al. (2024)

Range

Lower Mekong, Thailand, Laos, Cambodia, and Vietnam.

Map of Georeferenced Specimens

species map

SMF_13841 ??	MNHN_MP_3550 Cambodj	UMMZ_110118 Cochin China
SMF_14746 Cochinchina	MNHN_MP_3359 Cochinchine	MNHN_MP_3864 Cochinchine
MNHN_MP_3852 Lo Yen Phoe [?] Cambodge	MNHN_MP_3849 Samron Seng, Cambodge	MNHN_MP_3849 Samron Seng, Cambodge

Cambodia

MNHN_IM-2000-1697 Cambodge	MNHN_IM-2000-1697 Cambodge	MNHN_IM-2000-35806 Cambodge
MNHN_MP_3090 Cambodge	MNHN_MP_3091 Cambodge	MNHN_MP_3095 Cambodge
MNHN_MP_3330 Cambodge	MNHN_MP_3771 Cambodge	MNHN_MP_3773 Cambodge
MNHN_MP_3775 Cambodge	MNHN_MP_3781 Cambodge	MNHN_MP_3820 Cambodge
MNHN_MP_3871 Cambodge	MNHN_MP_3994 Cambodge	MNHN-IM-2000-1668 Cambodge
ANSP_41751 Cambodia	BMNH_93-2-4-1596 Cambodia	BMNH_93-3-16-3-5 Cambodia
BMNH_93-3-16-3-5 Cambodia	FMNH_21783 Cambodia	INHS_21573 Cambodia
USNM_127010 Cambodia	USNM_127010 Cambodia	UMMZ_109606 Cambodia, French Indo China
UMMZ_110002 Cambodia, French Indo China	UMMZ_110117 Cambodia, French Indo China	UF_4233 Cambodia, Grand Lac
UF_93217 Cambodia, Grand Lac	BMNH_1965148 Camboja	UF_954 French Indo China, Grand Lac, Cambodia
MNHN_MP_3872 Gr. Lacs, Cambodge	MNHN_MP_3872 Gr. Lacs, Cambodge	MNHN_MP_3084 Grand Lac (....) Cambodge
MNHN_MP_3591 Grand Lac (Surtam [?]) Cambodge	MNHN_MP_3870 Grand Lac du Mekong, Cochinchina	ANSP_162044 Grand Lac, Cambodia
FMNH_21784 Grand Lac, Cambodia	MNHN_MP_3697 Grand Lac, Cambodia	MNHN_MP_3847 Grand Lac, Cambodia
SMF_14743 Grand Lac, Kambodja	UMMZ_110005 Great Lake, Cambodia, French Indo China	UMMZ_110007 Great Lake, French Indo China
SMF_13846 Kambodja	SMF_13847 Kambodja	SMF_14747 Kambodja
SMF_14748 Kambodja	MNHN_MP_3088 Lac Taule-Sap, Cambodge	MNHN_MP_3360 Lac Taule-Sap, Cambodge
BMNH_MP_0706 Lake Tonle Sap, Cambodia	MNHN_MP_3633 le lac des effluent etang .. Cambodge	MNHN_MP_3823 les lac des affluent et la etang Cambodge
UF_507416 Mekong River, 1.4 miles upstream from Sambour. CA16-08. 12.79459, 105.97255	UF_507421 Mekong River, 700 ft downstream of Sandan. CA16-09. 12.68691, 106.01697	INHS_32569 Mekong River, N of Phnom Penh at head of island, Phnom Penh, Cambodia
UF_507432 Mekong River, upstream of fishing village near the confluence of Tonle Sap River. CA16-10. 11.57207, 104.94050	MNHN-IM-2000-1780 Peam Chelang, Cambodge	MNHN-IM-2000-1780 Peam Chelang, Cambodge
MNHN-IM-2000-1780 Peam Chelang, Cambodge	UMMZ_304652 Pursat River, just downstream (north) of Highway 5 bridge, Pursat City, Cambodia	UA_21040 Pursat River, just downstream (north) of Highway 5 bridge, Pursat City, Cambodia 12.53308 103.91947
INHS_32571 Sangker River (=Sonkai River), Batdambang, Battambang, Cambodia	INHS_32572 Sangker River (=Sonkai River), Batdambang, Battambang, Cambodia	SMF_14742 See Tonle Sap, Kambodja
SMF_13853 See Tonle-Sap Kambodja	USNM_365430 Sen River, Cambodia	MNHN_MP_3094 Sombor
UF_507395 Tonle Kong River just upstream of island, 8.3 miles NE of AH11 bridge near Stung Treng. CA16-04. 13.60938 ,106.09245	UF_507436 Tonle Sap River near Phumi Trâpeang Préal. CA16-11. 12.05849, 104.77307	UF_507451 Tonle Sap, 4.3 mile boat ride from fishing village (3.5 miles from Khum Ponley). CA16-13. 12.56070, 104.43972
UF_507388 Tonle Sekong River, 1.6 miles upstream from AH11 Bridge. CA16-03. 13.54504, 106.01353	UF_507443 Tributary of Tonle Sap River, HWY 5 bridge south of Rolea B'ier District. CA16-12. 12.18893, 104.66102	UF_507411 Unknown tributary of Mekong just N of Phumi Prêk Krieng on AH11. CA16-07. 13.04014, 106.18086
UF_507406 Unknown tributary of Mekong just N of Phumi Prêk Preah on AH11. CA16-06. 13.15123, 106.14521

BMNH_93-2-4-1597. Cambodia

Laos

MNHN_MP_D Laos Occidental	ANSP_H19007 Laos: Mekong at Pakse	ANSP_H19019 Laos: Mekong at Pakse
SMF_319371 Laos: Mekong at Pakse	ANSP_H18993 Laos: Sa Bang Fai River, N of Suvanaket [Savannakhet] opp Tat Panom	TMMUBI_49 Mekong at Pakse, Laos
TMMUBI_49 Mekong at Pakse, Laos	USNM_786281 Thailand: Mekong River between Takek and Nakon Panom

Thailand

UF_507536 Bua Nuea River near bridge just south of Rt. 2017 in Nong Waeng. JMP17-52. 13.79156, 102.36001	SMF_319370 Huai Wat Luang, Aranyaprathet	SMF_319233 Huia Wat Luang Aranyaprathet
SMF_319233 Huia Wat Luang Aranyaprathet	SMF_220849 Klong Pra Satung at Srakeo	SMF_188858 Klong Satung Srakeo
SMRL_2348 klong Wat Luang, Aranyapatet, Thailand	FMNH_33024 Me Ping River at Wang Pratart Farm, Kam Peng Pet Prov., NW Siam	MNHN_MP_3089 Riviere de Sutrang, Siam
MNHN_MP_3785 Riviere de Sutrang, Siam	ANSP_H19005 Stung “Sutrang”, Aranya Pratet, Thailand	ANSP_H18994 Stung Bang Hot, Aranyapratet, Thailand
ANSP_H19004 Stung Bang Hot, Aranyapratet, Thailand	BMNH_MP_0723 Stung Bang Hot, Aranyapratet, Thailand	MNHN_MP_3079 Stung Bang Hot, Aranyapratet, Thailand
SMF_188864 Stung sutrang Aranyapratet	BMNH_MP_0606 Stung Sutrang, Aranyapratet, Thailand	MCZ_256640 Stung Sutrang, Aranyapratet, Thailand
MNHN_MP_3784 Stung Sutrang, Aranyapratet, Thailand	USNM_786321 Stung Sutrang, Aranyapratet, Thailand	SMF_319227 Stung Sutrang. Aranyaprathet
SMF_319227 Stung Sutrang. Aranyaprathet	MNHN_MP_3769 Sutrang et ... Siam	SMF_220842 Thailand: Huai Wat Luang near Aranyapratet
SMF_319228 Thailand: Klong Satung, Srakeo	SMF_319228 Thailand: Klong Satung, Srakeo	SMF_319229 Thailand: Mae Nam Ing River at Toeng, Chainag Rai Prov.
SMF_283244 Thailand: Stung Sutrang Aranyapratet

unknown

MNHN_MP_3086 [no locality available - Asia]	MNHN_MP_3099 [no locality available - Asia]	MNHN_MP_3865 [no locality available - Asia]
MNHN_MP_3873 [no locality available - Asia]	MNHN_MP_3875 [no locality available - Asia]	MNHN_IM-2000-33677 [no locality available - Asia] [Hab. Rivière de Sutrang (Siam)]

Vietnam

MNHN_MP_4081 Bac Kan, Tonkin	UMMZ_109740 Than Moi, Tonkin, French Indo China	UMMZ_110079 Than Moi, Tonkin, French Indo China
UMMZ_110088 Than Moi, Tonkin, French Indo China	SMF_13844 Than-Moi, Tonkin	MNHN_MP_3239 Tonkin
MNHN_MP_3855 Tonkin	MNHN_MP_3861 Tonkin	UMMZ_110087 Tonkin, French Indo China

Georeferenced Genbank Vouchers

Cambodia

UF_507416 (ICH-00545). (COI: MT905674, go to Genbank) Cambodia, Mekong River, 1.4 miles upstream from Sambour (12.794587, 105.972551).

UF_507416 (ICH-00548). (COI: MT905676, go to Genbank) ditto.

UF_507416 (ICH-00549). (COI: MT905677, go to Genbank) ditto.

UF_507395 (ICH-00461). (COI: MT905636, go to Genbank) Cambodia, Tonle Kong River just upstream of island, 8.3 miles NE of AH11 bridge near Stung Treng (13.609383, 106.092445).

UF_507395 (ICH-00462). (COI: MT905637, go to Genbank) ditto.

UF_507395 (ICH-00463_AHE). (COI: MT905639, go to Genbank) ditto.

UF_507395 (ICH-00463). (COI: MT905638, SRA: SRX8934368, go to Genbank) ditto.

UF_507395 (ICH-00464). (COI: MT905640, go to Genbank) ditto.

UF_507388 (ICH-00431). (COI: MT905620, go to Genbank) Cambodia, Tonle Sekong River, 1.6 miles upstream from AH11 Bridge (13.545038, 106.013527).

UF_507388 (ICH-00432). (COI: MT905621, go to Genbank) ditto.

UF_507388 (ICH-00433). (COI: MT905622, go to Genbank) ditto.

UF_507388 (ICH-00434). (COI: MT905623, go to Genbank) ditto.

UF_507388 (ICH-00435). (COI: MT905624, go to Genbank) ditto.

UF_507388 (ICH-00437). (COI: MT905625, go to Genbank) ditto.

UF_507411 (ICH-00534). (COI: MT905669, go to Genbank) Cambodia, Unknown tributary of Mekong just N of Phumi Prêk Krieng on AH11 (13.040143, 106.180864).

UF_507411 (ICH-00535). (COI: MT905670, go to Genbank) ditto.

UF_507411 (ICH-00542). (COI: MT905672, go to Genbank) ditto.

UF_507406 (ICH-00516). (COI: MT905662, go to Genbank) Cambodia, Unknown tributary of Mekong just N of Phumi Prêk Preah on AH11 (13.151229, 106.145211).

UF_507406 (ICH-00517). (COI: MT905663, go to Genbank) ditto.

UF_507406 (ICH-00518). (COI: MT905664, go to Genbank) ditto.

UF_507406 (ICH-00519). (COI: MT905665, go to Genbank) ditto.

UF_507406 (ICH-00520). (COI: MT905666, go to Genbank) ditto.

UF_507406 (ICH-00521). (COI: MT905667, go to Genbank) ditto.

UF_507406 (ICH-00522). (COI: MT905668, go to Genbank) ditto.

UMMZ_304652. (16S: KP795054, 28S: KP795016, COI: KP795034, go to Genbank) Pursat River, just downstream (north) of Highway 5 bridge, Pursat City, Cambodia.

UF_507421 (ICH-00559). (COI: MT905682, go to Genbank) Thailand, Mekong River, 700 ft downstream of Sandan (12.68691, 106.016966).

UF_507432 (ICH-00584). (COI: MT905694, go to Genbank) Thailand, Mekong River, upstream of fishing village near the confluence of Tonle Sap River (11.572071, 104.940501).

UF_507432 (ICH-00585). (COI: MT905695, go to Genbank) ditto.

UF_507432 (ICH-00586). (COI: MT905696, go to Genbank) ditto.

UF_507432 (ICH-00587). (COI: MT905697, go to Genbank) ditto.

UF_507432 (ICH-00588). (COI: MT905698, go to Genbank) ditto.

UF_507432 (ICH-00589). (COI: MT905699, go to Genbank) ditto.

UF_507432 (ICH-00590). (COI: MT905700, go to Genbank) ditto.

UF_507432 (ICH-00591). (COI: MT905701, go to Genbank) ditto.

UF_507436 (ICH-00598). (COI: MT905706, go to Genbank) Thailand, Tonle Sap River near Phumi Trâpeang Préal (12.058489, 104.773074).

UF_507436 (ICH-00599). (COI: MT905707, go to Genbank) ditto.

UF_507436 (ICH-00600). (COI: MT905708, go to Genbank) ditto.

UF_507436 (ICH-00601). (COI: MT905709, go to Genbank) ditto.

UF_507436 (ICH-00602). (COI: MT905710, go to Genbank) ditto.

UF_507451 (ICH-00631). (COI: MT905717, go to Genbank) Thailand, Tonle Sap, 4.3 mile boat ride from fishing village (3.5 miles from Khum Ponley) (12.5607, 104.43972).

UF_507451 (ICH-00632). (COI: MT905718, go to Genbank) ditto.

UF_507451 (ICH-00633). (COI: MT905719, go to Genbank) ditto.

UF_507451 (ICH-00634). (COI: MT905720, go to Genbank) ditto.

UF_507451 (ICH-00635). (COI: MT905721, go to Genbank) ditto.

UF_507451 (ICH-00636). (COI: MT905722, go to Genbank) ditto.

UF_507443 (ICH-00616). (COI: MT905713, go to Genbank) Thailand, Tributary of Tonle Sap River, HWY 5 bridge south of Rolea B'ier District (12.188929, 104.661024).

UF_507443 (ICH-00617). (COI: MT905714, go to Genbank) ditto.

Thailand

UF_507536 (ICH-02224). (COI: MT905916, go to Genbank) Thailand, Bua Nuea River near bridge just south of Rt. 2017 in Nong Waeng (13.791555, 102.360005).

UF_507536 (ICH-02225). (COI: MT905917, go to Genbank) ditto.