Sunday, 14 August 2016

Leptobrachella itiokai: A new species of Dwarf Litter Frog from Sarawak.

The Gunung Mulu National Park in northern Sarawak is considered to be one of the most Amphibian-rich areas on the island of Borneo, with about 90 species recorded within the park (about half the Amphibian diversity for the entire island). This includes four species of Dwarf Litter Frog, Leptobrachella spp., more than has been recorded in any similarly sized area, including one that has never been recorded outside the park. Recent studies have revealed that the distribution of Dwarf Litter Frogs is strongly segregated by by altitude, leading to the possibility that this number may not reflect the full diversity of these Frogs in the mountainous Gunung Mulu.

In a paper published in the Raffles Bulletin of Zoology on 5 August 2016, Koshiro Eto, Masafumi Matsui and Kanto Nishikawa of the Graduate School of Human and Environmental Studies at Kyoto University describe a fifth species of Dwarf :Litter Frog from the Gunung Mulu National Park.

The new species is named Leptobrachella itiokai, in honour of Takao Itioka, an entomologist at Kyoto University and a core member of the biological researcher consortium in Sarawak. It was discovered at an altitude of 1445 m, within the known range of Leptobrachella brevicrus, by the call of the males, which is different in the two species. Only adult males of the species have been observed, females and tadpoles being unknown (though it is possible that tadpoles previously recorded in the area and assumed to belong to Leptobrachella brevicrus are in fact Leptobrachella itiokai.

 Leptobrachella itiokai, adult male specimen. Eto et al. (2016).

The examined specimens of Leptobrachella itiokai ranged from 17.1 mm to 17.8 mm in length, and were tan in colour with dark markings and a lighter underside. The eyes have a golden background and an orange outer margin to the eyes.

See also... prometeii: A new species of Rain Frog from the cloud forests of El Oro in southern Ecuador.                                        The tropical forests of Central and South America are home to almost half of the known species... laterite: A new species of Narrow-mouthed Frog from the laterite terrains of western India.                                        Laterites are iron and aluminium rich clay soils formed by the... Frogs from the Middle Miocene of Jammu and Kashmir, India.                     Painted Frogs, Discoglossinae, are found today in Southern Europe and the Mediterranean Basin, with fossils known from a number of Tertiary European sites. However the group are thought to be...
Follow Sciency Thoughts on Facebook.

1 comment:

  1. . The news report appeared in Darjeeling Times on 13 August 2016 saying that a massive landslide in Dzongu , North Sikkim has triggered fears of floods downstream. It has also been added that entire hillock called “ So Bhir” adjacent to Kanaka river has come crashing down, blocking the Kanaka river. There is no reason to be panicky at present but some remedial measures are called for because the accumulated water on blocked of the river has a potential of causing huge damage in the area. The blocked water could fall in the Teesta river where there is a dam project. In this connection , readers may like to know , if they are already not aware , about the alert prediction of this Vedic astrology writer in hitherto well known article “ 2016 -a woeful year for India with slight cheer at the end” published as early as on 18 January 2016 in online magazine An alert was predicted for Gangtok- Sikkim likely to happen during Summer to August 2016 through massive landslide having likelihood of grave concern. The alert also included some power dam or water dam. The intent of this alert was to enable the concerned to be in readiness much before to counter or size up to such a likely contingency. On June 28 and after in 2016 also , this writer had alerted that period from 9 August to 20 September 2016 , massive floods and landslides could cause substantial concern in the country in Himalayan belt in north of India. It seems the alert was meaningfully useful.