| Page last updated
Thu 17 July 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!
Bivalvia | Unionoida | Unionoidea | Unionidae | Gonideinae | Contradentini genus Lens Simpson, 1900: species
5 available nominal genus synonyms (7 total synonyms) | cladomics  Lens comptus (Deshayes in Deshayes & Jullien, 1876)
syonymy (2 available, 3 total) | specimens (61 + 44 Genbank vouchers)
Range: Mekong River, Cambodia, Laos, and Thailand. (East Asia)
Genbank sequences: 16S, 28S, COI, SRA
IUCN Red List: Data Deficient (Harmandia munensis)
other links: MolluscaBase
|  Lens contradens (Lea, 1838)
syonymy (23 available, 36 total) | specimens (383 + 147 Genbank vouchers)
Range: Widespread from the Mekong in Vietnam to Sumatra and Java. (East Asia)
Genbank sequences: 16S, 18S, 28S, COI, H3, mtGenome, mtGenome M-type, SRA
IUCN Red List: Least Concern (Uniandra contradens), Least Concern (Physunio cambodiensis)
other links: MolluscaBase
|  Lens eximius (Lea, 1856)
syonymy (2 available, 2 total) | specimens (97 + 22 Genbank vouchers)
Range: Mekong in Thailand, Cambodia, and Laos. (East Asia)
Genbank sequences: 16S, 18S, 28S, COI, ND1, SRA
IUCN Red List: Least Concern (Physunio eximius)
other links: MolluscaBase
|  Lens fultoni (Haas, 1930)
syonymy (1 available, 1 total) | specimens (1)
Range: Vietnam. (East Asia)
other links: MolluscaBase
|  Lens inornatus (Lea, 1856)
syonymy (1 available, 1 total) | specimens (34 + 9 Genbank vouchers)
Range: Mekong in Cambodia, Thailand and Laos, and west to the Chao Phraya. (East Asia)
Genbank sequences: COI, SRA
IUCN Red List: Least Concern (Physunio inornatus)
other links: MolluscaBase
|  Lens lugens (Drouët & Chaper, 1892)
syonymy (3 available, 4 total) | specimens (34)
Range: Borneo. (East Asia)
Genbank sequences: 18S, 28S, COI, ND1
other links: MolluscaBase
|  Lens maenamensis Pfeiffer, Graf, Cummings & Page, 2021
syonymy (1 available, 2 total) | specimens (46 + 30 Genbank vouchers)
Range: Mekong Basin, Thailand, Cambodia, and Laos. (East Asia)
Genbank sequences: 16S, 28S, COI, H3, SRA
other links: MolluscaBase
|  Lens micropterus (Morelet, 1866)
syonymy (10 available, 15 total) | specimens (123 + 49 Genbank vouchers)
Range: Lower Mekong, Thailand, Laos, Cambodia, and Vietnam. (East Asia)
Genbank sequences: 16S, 28S, COI, SRA
IUCN Red List: Least Concern (Physunio micropterus)
other links: MolluscaBase
|  Lens misellus (Morelet, 1865)
syonymy (2 available, 3 total) | specimens (14 + 8 Genbank vouchers)
Range: Thailand and Vietnam. (East Asia)
Genbank sequences: 16S, 28S, COI, SRA
IUCN Red List: Data Deficient (Trapezoideus misellus)
other links: MolluscaBase
| Lens novoselovi (Konopleva, Bolotov, Spitsyn, Kondakov, Gofarov & Vikhrev, 2019)
syonymy (1 available, 1 total) | specimens (0 + 3 Genbank vouchers)
Range: Mekong Basin, Laos. (East Asia)
Genbank sequences: 16S, 28S, COI
other links: MolluscaBase |  Lens pallegoixi (Sowerby, 1867)
syonymy (1 available, 1 total) | specimens (30 + 4 Genbank vouchers)
Range: Mun River, Thailand. (East Asia)
Genbank sequences: 16S, 28S, COI, SRA
other links: MolluscaBase
|  Lens rolfbrandti (Jeratthitikul & Panha in Jeratthitikul et al., 2019)
syonymy (1 available, 1 total) | specimens (4 + 2 Genbank vouchers)
Range: Known from the Huai Luang River (Mekong Basin) in Thailand, and Laos. (East Asia)
Genbank sequences: 16S, 28S, COI, H3
other links: MolluscaBase
|  Lens semmelinki (Martens, 1891)
syonymy (1 available, 2 total) | specimens (3)
Range: Borneo and Sumatra. (East Asia)
IUCN Red List: Data Deficient (Uniandra semmelinki)
other links: MolluscaBase
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