Choerophryne grylloides

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Choerophryne grylloides
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Genus: Choerophryne
Species:
C. grylloides
Binomial name
Choerophryne grylloides
Iannella, Oliver  [ fr ], and Richards  [ fr ], 2015 [1]
Papua New Guinea relief map.svg
Red pog.svg
Choerophryne grylloides is only known from the upper Sepik River basin, Papua New Guinea

Choerophryne grylloides is a small species of frog in the family Microhylidae. It is endemic to the upper Sepik River basin in the northern side of the New Guinea Highlands in Papua New Guinea. [1] [2] The specific name grylloides, from Latin gryllus ("cricket") and Greek suffix -oides ("resembles"), alludes to its cricket-like, high-pitched advertisement call. [1]

Contents

Description

This species is only known from two specimens: the holotype, an adult male, and other specimen that is tentatively (short of call or genetic data) assigned to this species. The holotype measures 12.5 mm (0.5 in) in snout–vent length, the other specimen is slightly smaller. The head is relatively narrow. The snout is slender with a rounded tip. The eyes are moderately small. The tympanic annulus is indistinct. All but the first finger have distinctly expanded discs. All toes have expanded terminal discs. Webbing is absent. Skin of the upper surfaces bear scattered low, rounded tubercules; the venter is smooth. The holotype, as seen at night, had black dorsal medial area, grading laterally to medium brown, and contrasting with the orangish-brown snout, thighs, and posterior of the dorsum. The flanks and limbs had extensive scattered pale grey-blue spots. [1]

The male advertisement call is high-pitched, with dominant frequency of 4845–5115 Hz, giving it a cricket-like sound. Calls consist of 4–5 pulsed notes, the last of which has many more pulses than the previous notes. [1]

Habitat and conservation

Choerophryne grylloides is known from primary foothill rainforest at elevations of 440–900 m (1,440–2,950 ft) above sea level. The holotype was calling at night from the exposed surface of a leaf, about 30 cm (1 ft) above the ground. [1]

Given the availability of suitable habitat, this species has probably a broad distribution along the northern slopes of the New Guinea Highlands. [1] As of late 2019, it has not been assessed for the IUCN Red List of Threatened Species. [3]

Related Research Articles

<i>Choerophryne</i> Genus of amphibians

Choerophryne is a genus of microhylid frogs, commonly known as Torricelli mountain frogs, endemic to New Guinea. These frogs are small, with the body length measured from snout to vent between 11 and 23 mm.

<i>Choerophryne brunhildae</i> Species of frog

Choerophryne brunhildae is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is known from the Adelbert Range, the Bewani Mountains, and the Hunstein Mountains.

Choerophryne darlingtoni is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and found in the New Guinea Highlands. The specific name darlingtoni honors P. Jackson Darlington Jr., an American evolutionary biologist and zoogeographer. Common name Darlington's rainforest frog has been coined for it.

Choerophryne exclamitans is a species of frogs in the family Microhylidae. It is endemic to the Morobe Province of mainland Papua New Guinea and known from two locations on the slopes of Mount Shungol, its type locality, and from the Huon Peninsula.

Choerophryne fafniri is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is only known from the north-western slopes of Mount Giluwe and south-east of Mount Hagen in the Southern Highlands Province.

Choerophryne gudrunae is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is only known from its type locality near Kowat in the Adelbert Range, Madang Province.

Choerophryne rhenaurum is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is only known from its type locality, Moiyokabip in the upper Ok Tedi catchment in the Western Province.

Choerophryne sanguinopicta is a species of frogs in the family Microhylidae. It is endemic to southeastern Papua New Guinea and only known from the vicinity of its type locality, the northern slope of Mt. Simpson in the Owen Stanley Range, Milne Bay Province, although it is expected to occur more widely. The specific name sanguinopictus, from Latin for sanguis ("blood") and pictus ("painted") refers to the distinctive red blotching and punctations characteristic for this species.

Choerophryne siegfriedi is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is only known from its type locality, Mount Elimbari in the Simbu Province.

Choerophryne swanhildae is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is known from the Hagen and Kubor ranges.

Choerophryne tubercula is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and known from scattered locations in the New Guinea Highlands. However, the species is likely to occur also in the Indonesian part of New Guinea. Common name warty rainforest ground frog has been coined for it.

Choerophryne valkuriarum is a species of frog in the family Microhylidae. It is endemic to the eastern New Guinea in Papua New Guinea and is known from near Wau in the Ekuti Dividing Range south to Myola in the Owen Stanley Range. The nominal species might consist of more than one distinct species.

Choerophryne allisoni is a tiny species of frog in the family Microhylidae. It is endemic to Papua New Guinea and only known from its type locality, Mount Sisa in the Southern Highlands Province. The specific name allisoni honours Allen Allison, an American herpetologist. Common name Allison's mountain frog has been coined for this species.

<i>Cophixalus parkeri</i> Species of frog

Cophixalus parkeri is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea where it occurs in the central mountainous region between Chimbu and Morobe Provinces. The specific name parkeri presumably honours Hampton Wildman Parker, an English zoologist and herpetologist to whose perusal Arthur Loveridge sent the holotype. Common name Papua rainforest frog has been coined for it.

Oreophryne minuta is a species of frog in the family Microhylidae. It is endemic to Papua, Western New Guinea, and only known from its type locality in the Derewo River basin, in the mountains to the southeast of Cenderawasih Bay. It is a very small frog, and at the time of species description, the smallest Oreophryne species.

Choerophryne amomani 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 administratively a part of the Papua Province, Indonesia. The species is only known from the Amoman Mountain, its type locality, after which it is also named. Common name Amoman choerophryne has been suggested for it.

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. Common name Arndt's choerophryne has been suggested for it. The specific name is plural genitive and honours Dr. Rudolf G. Arndt and his family.

Callulops mediodiscus is a species of frog in the family Microhylidae. It is only known from the type locality in the upper Kikori Basin in the Southern Highlands Province, Papua New Guinea. The specific name refers to its most distinctive feature, the moderately enlarged discs on fingers and toes, although their function remains unknown as the specimens were collected on or near the ground.

Choerophryne gracilirostris is a tiny, little-studied species of frog in the family Microhylidae. It is endemic to the rainforest of the Western and Southern Highlands provinces of Papua New Guinea. Choerophryne gracilirostris can be distinguished by its long narrow snout and advertisement call of 3-5 pulsed notes in long repeated sequences. Males can be found calling from within leaf litter or rotting logs, especially on rainy nights.

Choerophryne epirrhina is a small (14.9-15.0 mm), little-known species of frog in the family Microhylidae. It is endemic to the northern side of the central cordillera of Papua New Guinea, at altitudes of around 850m. Choerophryne epirrhina has an elongated snout and advertisement call of 3-4 pulsed notes in long repeated sequences. Males can be found calling from within leaf litter after rain at night.

References

  1. 1 2 3 4 5 6 7 Iannella, Amy; Oliver, Paul M. & Richards, Stephen J. (2015). "Two new species of Choerophryne (Anura, Microhylidae) from the northern versant of Papua New Guinea's central cordillera". Zootaxa. 4058 (3): 332–40. doi:10.11646/zootaxa.4058.3.2. PMID   26701530.
  2. ↑ Frost, Darrel R. (2019). "Choerophryne grylloides Iannella, Oliver, and Richards, 2015". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 26 October 2019.
  3. ↑ "IUCN Red List of Threatened Species" . Retrieved 26 October 2019.
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