''Cornufer macrops'', also known as the Aresi wrinkled ground frog, is a species of frog 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, Bismarck, and Solomon Islands. Taxonomy Ceratobatrachidae was formerly treated as a subfamily (i.e ...

. 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 ...

''macrops'' refers to the very large eyes of this species. It is endemic to

Bougainville Island Bougainville Island (Tok Pisin: ''Bogenvil'') is the main island of the Autonomous Region of Bougainville, which is part of Papua New Guinea. It was previously the main landmass in the German Empire-associated North Solomons. Its land area is ...

, in the Papua New Guinean part of the

Solomon Islands archipelago The Solomon Islands (archipelago) is an island group in the western South Pacific Ocean, north-east of Australia. The archipelago is in the Melanesian subregion and bioregion of Oceania and forms the eastern boundary of the Solomon Sea. The ...

. It is only known from the mountains of northern Bougainville Island, near Kunua, although its true range could be much wider.

Description

Based on three adult males and two adult females, males measure and females in

snout–vent length Snout–vent length (SVL) is a morphometric measurement taken in herpetology from the tip of the snout to the most posterior opening of the cloacal slit (vent)."direct line distance from tip of snout to posterior margin of vent" It is the most c ...

. The overall appearance is slender. The eyes are very large. The snout is rounded. The tympanum is distinct. The finger and the toe tips have slightly dilated, rounded discs, or in the case toe tips, they may be slightly pointed. No webbing is present. Preserved specimens are blotched light and dark brown. The hind limbs have dark crossbars.

Habitat and conservation

''Cornufer macrops'' occurs on steep mountain slopes in dense forest and along streams, but not on ridge tops, 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 ...

. Development is direct (i.e., there is no free-living larval stage) and the eggs are laid on the ground. ''Cornufer macrops'' is an uncommon species. There is no recent information on it, but it is not believed to be facing significant threats.

References

{{Taxonbar, from=Q28057418 macrops Amphibians of Papua New Guinea Endemic fauna of Papua New Guinea Amphibians described in 1965 Taxa named by Walter Creighton Brown Taxonomy articles created by Polbot