Abstract
We describe a new species, Fejervarya muangkanensis sp. nov., based on a series of specimens collected from Ban Tha Khanun, Thong Pha Phum District, Kanchanaburi Province, Thailand. The new species is easily distinguished from its congeners by morphological and molecular data, and can be diagnosed by the following characters: (1) small size (adult male snout-vent length (SVL) 33.5 mm; female SVL 40.0-40.9 mm); (2) tympanum small, discernible but unclear; (3) poorly developed toe webbing; (4) no lateral line system in adults; (5) characteristic "Fejervaryan" lines present in females; and (6) femoral glands absent. Molecular phylogenetic analysis of mitochondrial 16S rRNA further supports it as a distinct lineage and distinguishes it from its congeners for which sequences are available.
Highlights
The genus Fejervarya (Bolkay, 1915) currently contains 41 species (Frost, 2017) and two reciprocally monophyletic species groups (Dinesh et al, 2015) comprising the: (1) South Asian group and (2) East and Southeast Asian group
Except for F. andamanensis, which belongs to the South Asian group, all other Thai species are assigned to the East and Southeast Asian group (Dinesh et al, 2015; Suwannapoom et al, 2016)
During herpetological surveys in 2013 in the Kanchanaburi Province of Thailand, we found a morphologically distinct population of Fejervarya
Summary
The genus Fejervarya (Bolkay, 1915) (family Dicroglossidae Anderson, 1871) currently contains 41 species (Frost, 2017) and two reciprocally monophyletic species groups (Dinesh et al, 2015) comprising the: (1) South Asian group and (2) East and Southeast Asian group. Except for F. andamanensis, which belongs to the South Asian group, all other Thai species are assigned to the East and Southeast Asian group (Dinesh et al, 2015; Suwannapoom et al, 2016). We compared the morphology of this species with its congeners as well as levels of genetic divergence with species having comparable data in GenBank. These analyses supported the recognition of a new species. These analyses supported the recognition of a new species. 1
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