''Hylophorbus rainerguentheri'' is a

frog A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-f ...

species in the family

Microhylidae The Microhylidae, commonly known as narrow-mouthed frogs, are a geographically widespread family of frogs. The 683 species are in 63 genera and 11 subfamilies, which is the largest number of genera of any frog family. Evolution A molecular phylo ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

and only known from the

Huon Peninsula Huon Peninsula is a large rugged peninsula on the island of New Guinea in Morobe Province, eastern Papua New Guinea. It is named after French explorer Jean-Michel Huon de Kermadec. The peninsula is dominated by the steep Saruwaged and Finister ...

in the

Morobe Province Morobe Province is a province on the northern coast of Papua New Guinea. The provincial capital and largest city is Lae. The province covers 33,705 km2, with a population of 674,810 (2011 census), and since the division of Southern Highlands P ...

Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...

. The specific name ''rainerguentheri'' honours , a German herpetologist from the

Natural History Museum, Berlin The Natural History Museum (german: Museum für Naturkunde) is a natural history museum located in Berlin, Germany. It exhibits a vast range of specimens from various segments of natural history and in such domain it is one of three major muse ...

. Common name Huon Mawatta frog has been proposed for this species.

Description

Adult males measure in snout–vent length; females are unknown. The body is robust and broader than the head. The snout is truncate and rounded in lateral profile and truncate in dorsal view. The tympanum is indistinct and the supra-tympanic fold is short. The fingers and toes are unwebbed but bear discs with distinct circum-marginal grooves. The dorsum is mostly brown but bears conspicuous, dark brown

lumbar In tetrapod anatomy, lumbar is an adjective that means ''of or pertaining to the abdominal segment of the torso, between the diaphragm and the sacrum.'' The lumbar region is sometimes referred to as the lower spine, or as an area of the back i ...

ocelli; some mottling may be present too. The flanks are flesh-toned and have small whitish flecks, sometimes also small brown spots and blotches. Some specimens have a faint, flesh-toned inter-orbital bar. The legs have cross-bars. The male advertisement call is a very long series of single-note calls, lasting up to two minutes. A single call lasts about 0.1 seconds. The dominant frequency is relatively low, about 1100 Hz.

Habitat and conservation

''Hylophorbus rainerguentheri'' in habits extremely wet, lower-montane rainforests at elevations of

above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...

. Males have been observed calling from the ground or from logs on the forest floor, or from more elevated positions (≤ above the ground), normally from inside dense clumps of moss on tree trunks or tree branches. Threats to this species are not known. The type locality is a reasonably well-protected Wildlife Management Area, thanks to efforts to protect

tree-kangaroo Tree-kangaroos are marsupials of the genus ''Dendrolagus'', adapted for arboreal locomotion. They inhabit the tropical rainforests of New Guinea and far northeastern Queensland, along with some of the islands in the region. All tree-kangaroos a ...

References

{{Taxonbar, from=Q3143944 rainerguentheri Endemic fauna of New Guinea Amphibians of New Guinea Endemic fauna of Papua New Guinea Amphibians of Papua New Guinea Amphibians described in 2007 Taxa named by Paul M. Oliver