Choerophryne arndtorum

Short description: Species of amphibian

Choerophryne arndtorum

Conservation status

Data Deficient (IUCN 3.1)[1]

Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Amphibia
Order:  | Anura
Family:  | Microhylidae
Genus:  | Choerophryne
Species:  |

C. arndtorum

Binomial name
Choerophryne arndtorum

Choerophryne arndtorum is only known from the island of Yapen, Indonesia.

Choerophryne arndtorum is a species of frogs in the family Microhylidae. It is endemic to the island of Yapen, off the north-western coast of New Guinea and belonging to the Papua Province, Indonesia. It is known from the Waira Mountain, its type locality near Serai, and from another locality further east.[1][2] Common name Arndt's choerophryne has been suggested for it.[1][3][2] The specific name is plural genitive and honours Dr. Rudolf G. Arndt and his family.[3]

## Contents

* 1 Description
* 2 Habitat and ecology
* 3 Conservation
* 4 References

## Description

Adult males measure 11–15 mm (0.43–0.59 in) in snout–urostyle length; females are unknown. The snout is long and pointed (7–9% of the body length). The eyes are relatively large. The tympanum is small. All fingers and toes expect the first ones bear discs. The dorsum is reddish, greyish, or brownish, while the ventrum is grey-brown, blackish, or brownish. Most specimens have an hour-glass marking on the dorsum, and many have a broad, light-coloured dorso-lateral stripe.[3]

The male advertisement call is a series of typically four (range 1–5) distinctly pulsed notes. Each note consists of 22 to 44 pulses, with dominant frequency at 5.1 kHz.[3]

## Habitat and ecology

At the type locality, Choerophryne arndtorum inhabits primary and secondary rain forest at elevations of 500–700 m (1,600–2,300 ft) above sea level.[1][3] It was found to be locally common, with 150 calling males found in a half hectare area. Males call from on or in leaf litter, sometimes higher from the ground (to 1.2 m) on plant stems.[3] Development is direct[1] (i.e., there is no free-living larval stage[4]).

## Conservation

Logging is a potential threat to this species, especially at lower altitudes.[1]

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 IUCN SSC Amphibian Specialist Group. (2020). "Choerophryne arndtorum". IUCN Red List of Threatened Species 2020: e.T76317561A76317648. doi:10.2305/IUCN.UK.2020-3.RLTS.T76317561A76317648.en. https://www.iucnredlist.org/species/76317561/76317648. Retrieved 12 December 2023.
2. ↑ 2.0 2.1 Frost, Darrel R. (2023). "Choerophryne arndtorum Günther, 2008". Amphibian Species of the World: an Online Reference. Version 6.2. American Museum of Natural History. doi:10.5531/db.vz.0001. https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Microhylidae/Asterophryinae/Choerophryne/Choerophryne-arndtorum.
3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Günther, R. (2008). "Descriptions of four new species of Choerophryne (Anura, Microhylidae) from Papua Province, Indonesian New Guinea". Acta Zoologica Sinica 54 (4): 653–674. http://www.actazool.org/paperdetail.asp?id=10873. [yes|permanent dead link|dead link}}]
4. ↑ Vitt, Laurie J.; Caldwell, Janalee P. (2014). Herpetology: An Introductory Biology of Amphibians and Reptiles (4th ed.). Academic Press. p. 166.

Wikidata ☰ Q2964318 entry

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