Diversity and Phylogenetics of Freshwater Mussels (Unionidae) from Southern Thailand with the Description of One New Genus and Five New Species-Group Taxa

Southern Thailand represents a region of unique freshwater biodiversity with many endemic taxa, including a number of freshwater mussel species (Bivalvia: Unionidae). In this study, we recognize 13 taxa in the tribes Contradentini, Rectidentini, Pseudodontini (subfamily Gonideinae), and Indochinelli...

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Published inDiversity (Basel) Vol. 15; no. 1; p. 10
Main Authors Konopleva, Ekaterina S., Lheknim, Vachira, Sriwoon, Rujinard, Kondakov, Alexander V., Tomilova, Alena A., Gofarov, Mikhail Y., Vikhrev, Ilya V., Bolotov, Ivan N.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2023
Subjects
Biodiversity
Biogeography
Datasets
Fresh water
freshwater mussel fauna
Haplotypes
Mollusks
Morphology
Museums
Mussels
New genera
New species
New taxa
Parasitic diseases
Phylogenetics
Phylogeny
River basins
Rivers
Southern Thailand
Taxa
Teeth
Unionidae
Thailand
Malaysia
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Summary:Southern Thailand represents a region of unique freshwater biodiversity with many endemic taxa, including a number of freshwater mussel species (Bivalvia: Unionidae). In this study, we recognize 13 taxa in the tribes Contradentini, Rectidentini, Pseudodontini (subfamily Gonideinae), and Indochinellini (subfamily Parreysiinae) that inhabit different localities in the Songkhla Lake, Tapi River, and Tha Taphao River basins. Based on the results of morphological and phylogenetic analyses, we discovered among these mussels six taxa new to science, including one genus, three species, and two subspecies. New taxonomic names are introduced here as follows: Songkhlanaiagen. nov.; S. tamodienicagen. & sp. nov.; Sundadontina plugpomenicasp. nov.; Monodontina vondembuschiana tapienicassp. nov.; M. vondembuschiana thasaenicassp. nov. (Pseudodontini); and Trapezoideus thachiadensissp. nov. (Contradentini). These new taxa confirm the high conservation priority of the Southern Thai freshwater mussel fauna.
ISSN:1424-2818
1424-2818
DOI:10.3390/d15010010