''Pristimantis pseudoacuminatus'', also known as Sarayacu robber frog, is a species of

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 ...

in the family

Strabomantidae The Strabomantidae are a family of frogs native to South America. These frogs lack a free-living larval stage and hatch directly into miniature "froglets". This family includes ''Pristimantis'', the most speciose genus of any vertebrate. System ...

. It is found in the

Amazon basin The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivi ...

in Colombia, Ecuador, and Peru.

Description

Adult males measure and adult 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 dorsum is warty; also the eyelids bear warts. The

canthus rostralis In snakes and amphibians, the canthus, canthal ridge or ''canthus rostralis'',Spawls S, Branch B. 1995. ''The Dangerous Snakes of Africa''. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . is the angle between the flat crown of the head and the ...

is strongly marked and incurved. The

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

, in preserved condition, has a brownish pinkish ground color. There are minute black punctillations and narrow dark brown to black streaks running over the canthus and the tympanum. There is also an obscure interocular streak. The lower parts are immaculate apart from some faint stippling on the throat the jaws.

Habitat and conservation

''Pristimantis pseudoacuminatus'' inhabits primary and secondary forests and flooded forests 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 ...

. It is primarily

nocturnal Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed sens ...

and occurs both among leaf litter on the ground and in low vegetation, often in epiphytes. Reproduction is presumably direct, without free-living larval stage. This species uncommon but widespread. It can be locally threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

caused by deforestation, agricultural development, and illegal crops. It occurs in the La Payas Nature Reserve in Colombia and its range overlaps with the

Limoncocha National Biological Reserve This Nature reserve is located 229 miles from Quito, Ecuador. The reserve includes over 13,000 acres (53 km2) of land in the Shushufindi Canton, Sucumbíos Province. Fauna There is a large concentration of Fauna in and around the reserve. ...

and

Yasuni National Park Yasuni can mean: * Yasuni National Park in Ecuador * The Yasuní-ITT Initiative, a proposal to refrain from exploiting oil reserves within the park * Lophostoma yasuni, a species of bat * Osteocephalus yasuni, a species of frog * Yasuni antwren, a ...

in Ecuador.

References

{{DEFAULTSORT:Pristimantis Pseudoacuminatus pseudoacuminatus Amphibians of Colombia Amphibians of Ecuador Amphibians of Peru Amphibians described in 1935 Taxa named by Benjamin Shreve Taxonomy articles created by Polbot