Pristimantis factiosus

Pristimantis factiosus is a species of frog in the family Craugastoridae.[2][4] It is endemic to the eastern slopes of the Cordillera Central in Colombia and only known from near its type locality, El Estadero in Samaná, Caldas Department, and from Anorí, Antioquia Department.[2][5] The IUCN SSC Amphibian Specialist Group, however, has mapped its distribution as continuous between these locations.[1] The specific name factiosus refers to sexual dimorphism in coloration of the flanks.[3]

Pristimantis factiosus

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Craugastoridae
Genus: Pristimantis
Subgenus:
Pristimantis (Pristimantis)
Species:
P. factiosus
Binomial name
Pristimantis factiosus
(Lynch and Rueda-Almonacid, 1998)
Synonyms[2]

Eleutherodactylus factiosus Lynch and Rueda-Almonacid, 1998[3]

Description

Adult males measure 18–22 mm (0.7–0.9 in) and adult females 29–33 mm (1.1–1.3 in) in snout–vent length. The snout is subacuminate in dorsal view and rounded in lateral profile. The tympanum rounded and prominent. The fingers bear narrow lateral keels and round terminal discs. The toes bear lateral keels and round terminal discs that are smaller than those of fingers. No webbing is present. Skin is very finely shagreened. There are ill-defined, partial dorsolateral folds at mid-body. The dorsum is pale yellowish-brown to dark brown. There is a black inter-orbital bar and spots forming a dorsal chevron; the sides of the head are also black. The venter is dirty white or gray with black stippling. Males have a large pale area edged in brown on posterior flank/groin, while the corresponding pale area in females is diffuse, without well-defined edges. The iris is dark red.[3]

Habitat and conservation

Pristimantis factiosus occurs in forest (including degraded former forest), pastureland, along roadsides, and in adjacent areas at elevations of 1,750–2,200 m (5,740–7,220 ft) above sea level. It is nocturnal and can be found on low vegetation. Development is direct[1] (i.e, there is no free-living larval stage[6]). It is preyed upon by the carnivorous frog Hemiphractus johnsoni.[3]

An adaptable and common species, Pristimantis factiosus is not facing known threats and is not considered threatened.[1]

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References
  1. IUCN SSC Amphibian Specialist Group (2018). "Pristimantis actinolaimus". IUCN Red List of Threatened Species. 2018. Retrieved 14 February 2020.
  2. Frost, Darrel R. (2020). "Pristimantis factiosus (Lynch and Rueda-Almonacid, 1998)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 14 February 2020.
  3. Lynch, J. D. & Rueda-Almonacid, J. V. (1998). "Additional new species of frogs (genus Eleutherodactylus) from cloud forests of eastern Departamento de Caldas, Colombia" (PDF). Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales. 22 (83): 287–298.
  4. "Pristimantis factiosus". AmphibiaWeb. University of California, Berkeley. 2019. Retrieved 14 February 2020.
  5. Acosta Galvis, A. R. (2019). "Pristimantis factiosus (Lynch & Rueda, 1998)". Lista de los Anfibios de Colombia: Referencia en linea V.09.2019. Retrieved 14 February 2020.
  6. Vitt, Laurie J. & Caldwell, Janalee P. (2014). Herpetology: An Introductory Biology of Amphibians and Reptiles (4th ed.). Academic Press. p. 166.
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