Journal Article
A striking new genus and species of cave-dwelling frog (Amphibia: Anura: Microhylidae: Asterophryinae) from Thailand
Suwannapoom, C., Sumontha, M., JTunprasert, J., Ruangsuwan, T., Pawangkhanant, P., Korost, D.V. and Poyarkov, N.A.
Record Number:
3783
Year:
2018
Journal:
PeerJ
Volume:
6:e4422
Notes:
https://amphibiansoftheworld.amnh.org/amphib/basic_search?basic_query=Siamophryne+troglodytes
Abstract:
We report on a discovery of Siamophryne troglodytes Gen. et sp. nov., a new
troglophilous genus and species of microhylid frog from a limestone cave in the
tropical forests of western Thailand. To assess its phylogenetic relationships we
studied the 12S rRNA–16S rRNA mtDNA fragment with final alignment comprising
up to 2,591 bp for 56 microhylid species. Morphological characterization of the
new genus is based on examination of external morphology and analysis of
osteological characteristics using microCT-scanning. Phylogenetic analyses place the
new genus into the mainly Australasian subfamily Asterophryinae as a sister taxon to
the genus Gastrophrynoides, the only member of the subfamily known from
Sundaland. The new genus markedly differs from all other Asterophryinae members
by a number of diagnostic morphological characters and demonstrates significant
mtDNA sequence divergence. We provide a preliminary description of a tadpole of
the new genus. Thus, it represents the only asterophryine taxon with documented
free-living larval stage and troglophilous life style. Our work demonstrates that
S. troglodytes Gen. et sp. nov. represents an old lineage of the initial radiation of
Asterophryinae which took place in the mainland Southeast Asia. Our results
strongly support the “out of Indo-Eurasia” biogeographic scenario for this group
of frogs. To date, the new frog is only known from a single limestone cave system in
Sai Yok District of Kanchanaburi Province of Thailand; its habitat is affected by
illegal bat guano mining and other human activities. As such, S. troglodytes
Gen. et sp. nov. is likely to be at high risk of habitat loss. Considering high ecological
specialization and a small known range of the new taxon, we propose a IUCN
Red List status of endangered for it.
Times Cited:
2
Relevent Species:
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Suwannapoom, C., Sumontha, M., JTunprasert, J., Ruangsuwan, T., Pawangkhanant, P., Korost, D.V. and Poyarkov, N.A. (2018)A striking new genus and species of cave-dwelling frog (Amphibia: Anura:
Microhylidae: Asterophryinae) from Thailand
Suwannapoom, C., Sumontha, M., JTunprasert, J., Ruangsuwan, T., Pawangkhanant, P., Korost, D.V. and Poyarkov, N.A. (2018)A striking new genus and species of cave-dwelling frog (Amphibia: Anura:
Microhylidae: Asterophryinae) from Thailand
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