Hyloscirtus chlorosteus

Critically endangered, possibly extinct  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Genus: Hyloscirtus
Species:
H. chlorosteus
Binomial name
Hyloscirtus chlorosteus
(Reynolds and Foster, 1992)
Type locality in Bolivia
Type locality in Bolivia
Hyloscirtus chlorosteus is only known from Parjacti in the Andes of Bolivia
Synonyms[2]

Hyla chlorostea Reynolds and Foster, 1992[3]
Colomascirtus chlorosteus (Reynolds and Foster, 1992)

Hyloscirtus chlorosteus is a species of frog in the family Hylidae. It is endemic to Bolivia and only known from the holotype collected in 1979 from Parjacti (=Paracti), on the eastern slopes of the Andes in the Cochabamba Department.[1][2][4] The specific name refers to the green bones of this frog.[3] Common name Parjacti treefrog has been coined for it.[1][2]

Description

The holotype, a subadult male, measures about 39–40 mm (1.5–1.6 in) in snout–vent length.[3][4] The specimen has a prominent preorbital ridge and moderately heavy supratympapanic fold that continues as a later fold, ending just before to the groin; the tympanum itself is indistinct. The snout is truncate in dorsal view but bluntly rounded when viewed from the side. The finger and toe tips bear large discs. The toes are heavily webbed whereas the finger webbing is moderate. The dorsum is brown with darker pattern. The flanks and the thighs have yellowish markings. The venter is opalescent gold to cream, turning to cream with pinkish tint posteriorly; the chin is opalescent gold. The iris is gold. The bones are green, as hinted by the specific name chlorosteus.[3]

Habitat and conservation

The holotype was found in Yungas forest at 2,044 m (6,706 ft) above sea level.[1][3] The specimen was collected at night from a door knob at the agricultural customs inspection station.[3] The tadpoles presumably develop in water.[1]

Despite later surveys to the area, no new specimens have been found.[1][4] The area is suffering from habitat degradation caused by agriculture, logging, and infrastructure development.[1]

References

  1. 1 2 3 4 5 6 7 IUCN SSC Amphibian Specialist Group (2020). "Hyloscirtus chlorosteus". IUCN Red List of Threatened Species. 2020: e.T55446A154331598. doi:10.2305/IUCN.UK.2020-3.RLTS.T55446A154331598.en. Retrieved 15 November 2021.
  2. 1 2 3 Frost, Darrel R. (2018). "Hyloscirtus chlorosteus (Reynolds and Foster, 1992)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 8 December 2018.
  3. 1 2 3 4 5 6 Reynolds, Robert P. & Foster, Mercedes S. (1992). "Four new species of frogs and one new species of snake from the Chapare region of Bolivia, with notes on other species". Herpetological Monographs. 6: 83–104. doi:10.2307/1466963. JSTOR 1466963.
  4. 1 2 3 Faivovich, Julián & De la Riva, Ignacio (2006). "On "Hyla" chlorostea Reynolds and Foster, 1992, a hylid of uncertain relationships, with some comments on Hyloscirtus (Anura: Hylidae)". Copeia. 2006 (4): 785–791. doi:10.1643/0045-8511(2006)6[785:ohcraf]2.0.co;2. S2CID 86258401.
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