Tuty Arisuryanti
Laboratory Of Genetics And Breeding, Faculty Of Biology, Universitas Gadjah Mada, Jl. Teknika Selatan, Sekip Utara, Yogyakarta 55281

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Journal : TREUBIA

A new species of Microhyla (Anura: Microhylidae) from Sumatra, Indonesia Vestidhia Yunisya Atmaja; Amir Hamidy; Tuty Arisuryanti; Masafumi Matsui; Eric N. Smith
TREUBIA Vol 45 (2018): Vol. 45, December 2018
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v45i0.3625

Abstract

A new species of frog in the genus Microhyla is described from Sumatra, Indonesia based on molecular and morphological characters. This new species was previously confused with M. achatina, a Javan endemic. This new species is diagnosable from its congeners by possessing a medium size (SVL in adult males 18.20–21.32 mm, in adult females 20.37–25.51 mm), a stout body, a nostril–eyelid length being about half of the snout length, having a single outer palmar tubercle, a tibiotarsal articulation reaching the center of the eye (when the hindlimbs are stretched and adpressed to the body), having finger and toe tips dilated, having the dorsum with medial longitudinal grooves, and excibiting a very thin and short dark stripe on the temporal region above a wider cream stripe, extending from the postorbital area to insertion of forelimb. Additionally, the new species is characterized by possessing relatively little foot webbing. Uncorrected 16S rRNA sequence divergences between the new taxon and sequences for other congeneric species available ranged from 4.8 to 15.0%.
THE DISCOVERY OF CHALCORANA MEGALONESA IN JAVA AND THE EVALUATION OF ITS TAXONOMIC STATUS Efendi Sabinhaliduna; Tuty Arisuryanti; Amir Hamidy
TREUBIA Vol 49, No 2 (2022)
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v49i2.4402

Abstract

Chalcorana chalconota was firstly described as Hyla chalconotus Schlegel from Java, and widely recognized as Rana chalconota Boulenger. This ranid frog species has widespread distribution in Southeast Asia. Molecular studies revealed that Rana chalconota is a complex species and consisted of several cryptic species. Among Sundaland population, this group was split into five species (C. chalconota sensu stricto, C. parvaccola, C. rufipes, C. raniceps, C. megalonesa), and together with C. labialis and C. eschatia, they nested in a monophyletic group. During herpetological survey in West Java, we collected two morphotypes of Rana chalconota from Pasir Angin, Bogor and evaluated their taxonomy status using morphology approach and molecular data with 16S rRNA mitochondrial gene. The results revealed two morphotypes belong to C. chalconota sensu stricto and C. megalonesa. The genetic distance of C. megalonesa between Java population and Sarawak (Borneo) population ranged from 2.4 to 2.6% that still below the threshold of species delimitation on the 16S rRNA gene. Therefore, these two populations are conspecific. This discovery of C. megalonesa in Java has contributed to increase the number of species of amphibians in Java to become 46 species.