''Cornufer citrinospilus'' is a species of

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

in the family

Ceratobatrachidae The Ceratobatrachidae are a family of frogs found in the Malay Peninsula, Borneo, the Philippines, Palau, Fiji, New Guinea, and the Admiralty Islands, Admiralty, Bismarck Islands, Bismarck, and Solomon Islands (archipelago), Solomon Islands. Tax ...

. It is

endemic Endemism is the state of a species being found only 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 foun ...

to the island of

New Britain New Britain () is the largest island in the Bismarck Archipelago, part of the Islands Region of Papua New Guinea. It is separated from New Guinea by a northwest corner of the Solomon Sea (or with an island hop of Umboi Island, Umboi the Dampie ...

Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...

, and is only known from the Nakanai Mountains of

East New Britain Province East New Britain is a province of Papua New Guinea, consisting of the north-eastern part of the island of New Britain and the Duke of York Islands. The capital of the province is Kokopo, not far from the old capital of Rabaul, which was largely ...

. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

''citrinospilus'' is derived from the Greek words ''kitrinos'' (="yellow") and ''pilos'' (="spot" or "stain"), in reference to the distinctive bright yellow flank areolations characteristic of this species.

Description

Adult males measure in snout–vent length; females are unknown. The overall appearance is slender. The snout is moderate, bluntly round. The tympanum is distinct. The eyes protrude moderately beyond dorsal surface of the head in lateral aspect. The fingers and toes have widely expanded terminal disks but no webbing. Skin of dorsal surfaces is finely granular. The dorsum has dark brick reddish-brown ground coloration with extensive to nearly absent suffusion of light green pigment on upper surfaces of head, trunk and limbs. Juxtaposition with white dermal tubercles on dorsal surfaces gives an overall pale green lichenatious color results. A thin light cream to white vertebral stripe is present. The labial and postrictal region is bright immaculate white to yellow. The flanks and concealed posterior surfaces of the thighs have bold, bright yellow areolations. The ventrum is pale pink, with dark red throat. The male advertisement call is slow series of dull, medium-frequency notes, which to the human ear resemble the sound produced by striking together two pieces of wood.

Habitat and conservation

The

type series In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to anchor or centralizes t ...

was collected from a patch of mossy montane forest, surrounded by dense thickets of bamboo, at

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

. Specimens were calling from elevated perches (leaves of small shrubs) some above the ground. As of mid-2019, this species has not been included in the

IUCN Red List of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological spe ...

References

{{Taxonbar, from=Q48780859 citrinospilus Amphibians of Papua New Guinea Endemic amphibian species of Papua New Guinea Amphibians described in 2013