We describe a new species of terrestrial limestone forest frog of the genus Platymantis from Biak Na Bato National Park in central Luzon Island, Philippines. Platymantis biak is assigned to the primarily arboreal Platymantis guentheri Species Group, and is distinguished from these and other congeners by features of its external morphology and preferred terrestrial limestone microhabitat. Severa...

Spinicauda fisheri n. sp. from the intestine of Platymantis pelewensis collected in the Palau Islands, Republic of Belau, is described and illustrated. Spinicauda fisheri represents the 12th species assigned to the genus and the first from Oceanica. It is most similar to Spinicauda spinicauda in that the tail ends in a filament, but it has 19 pairs of caudal papillae as compared with 5 pairs in...

Very few natural polymorphisms involving interchromosomal reciprocal translocations are known in amphibians even in vertebrates. In this study, thirty three populations, including 471 individuals of the spiny frog Quasipaa boulengeri, were karyotypically examined using Giemsa stain or FISH. Five different karyomorphs were observed. The observed heteromorphism was autosomal but not sex-related, ...

Dendrophryniscus is an early diverging clade of bufonids represented by few small-bodied species distributed in Amazonia and the Atlantic Forest. We used mitochondrial (414 bp of 12S, 575 bp of 16S genes) and nuclear DNA (785 bp of RAG-1) to investigate phylogenetic relationships and the timing of diversification within the genus. These molecular data were gathered from 23 specimens from 19 pop...

A new species of sesarmid crab, Chiromantes magnus, is described from the Ogasawara (Bonin) Is., Japan. The new species was previously confused with C. dehaani (H. Milne Edwards, 1853). The different carapace shape, proportionally longer ambulatory legs, large adult size and the distinct live coloration distinguish the new species from its two closest congeners, C. dehaani and C. neglectus (De ...

—We describe a new species of lizard of the genus Liolaemus from northwestern Chubut Province, Argentina. This new species belongs to the fitzingerii group and is easily distinguished from other members of the group by a combination of morphological and genetic characters. The new species is diagnosable in showing the following combination of characters: dorsal pattern with a conspicuous verteb...

A new species of Liolaemus is described from southwest the town Añelo, Neuquén Province, Argentina. Integrative evidence methodology external morphological characters and molecular phylogenetic analyses mitochondrial DNA (cyt-b) used to place group boulengeri. The phenotypically close L. mapuche. medium large in size (males 77.64–83.98 mm, females 72.88–78.58 mm), with evident sexual dichromati...

We describe a new species, Epipedobates darwinwallacei sp. nov., from the area of Mindo, on northwestern Ecuador. It inhabits low montane forests in an elevational range of about 1250-1390 m. It differs from all congeneric species by its strong aposematic coloration and tarsal keels. Among species of Epipedobates, the new species has been confused with E. boulengeri and E. espinosai, but it dif...

Three species of the genus Amphiesma Duméril, Bibron & Duméril, 1854 have long been confused in the literature, with each other and with other species of the genus. Amphiesma khasiense (Boulenger, 1890) has been considered to inhabit a large geographical region, extending from north-eastern India, east to Vietnam and southern Thailand. Amphiesma boulengeri (Gressitt, 1937) has been regarded as ...

Ecogeographical rules help explain spatial and temporal patterns in intraspecific body size. However, many of these rules, when applied to ectothermic organisms such as reptiles, are controversial and require further investigation. To explore factors that influence body size in reptiles, we performed a heuristic study to examine body size variation in an Australian lizard, Boulenger's Skink Mor...