Meristogenys jerboa

Last updated

Meristogenys jerboa
Meristogenys jerboa.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Meristogenys
Species:
M. jerboa
Binomial name
Meristogenys jerboa
(Günther, 1872)
Synonyms [2]
  • Hylorana jerboa Günther, 1872
  • Rana jerboa (Günther, 1872)
  • Hylarana jerboa (Günther, 1872)
  • Amolops jerboa (Günther, 1872)

Meristogenys jerboa is a species of frog in the family Ranidae. It is endemic to western Sarawak in Borneo (East Malaysia). [2] [3] Common names western torrent frog, [3] Matang torrent frog, and Gunther's Borneo frog have been coined for it. [2] Many cryptic species have been separated from this species. Based on mitochondrial DNA, current "true" Meristogenys jerboa still includes two major lineages. However, because the lineages occur in sympatry and do not differ in morphology, Shimada and colleagues elected to treat them as intraspecific variants. [4]

Contents

Description

Females can grow to 82 mm (3.2 in) in snout–vent length, males are considerable smaller. [3] In a sample of 32 males and 6 females representing several populations, adult males measured 34–41 mm (1.3–1.6 in) and adult females 61–65 mm (2.4–2.6 in) in snout–vent length. [4] The snout is protruding in vertical view. [3] Males have larger tympanum compared to females. [5] Males have a slender body, whereas females are slightly more stocky. [3] The toes are webbed. A black marking surrounds the eye and the tympanum and extends to the flank. [4] The iris is bronze in the upper third and coppery in the lower parts. [3]

The tadpoles have a large suctorial disk. [4] They are light brown, but can have orange to slightly olive hue. The snout and body are depressed and streamlined. The tail is strong with a pointed tip. [3] The largest tadpoles (Gosner stages 38–41) reach 41 mm (1.6 in) in total length. [4]

Habitat and conservation

Meristogenys jerboa occurs in rocky streams in lowland and hillside forests. [3] Breeding takes place along rocky streams where the tadpoles cling to the rocks, probably feeding on lithophytic algae. [1]

The type locality is within the Matang Forest Reserve, where the species is abundant and not under threat. When the International Union for Conservation of Nature (IUCN) assessed conservation status of this species in 2004, it was not known from other localities, [1] but Shimada and colleagues report it from several localities. [4]

Related Research Articles

<i>Meristogenys</i> Genus of amphibians

Meristogenys is a genus of true frogs from Borneo. Its tadpoles are adapted to fast-flowing mountain streams and easily recognizable by their divided upper lip with ribs on the outside.

<i>Ansonia leptopus</i> Species of amphibian

Ansonia leptopus is a species of toad in the family Bufonidae. It is known from a few lowland localities in Borneo, Sumatra (Indonesia), and Peninsular Malaysia; it is reported as common in lowland Malaysian Borneo. Its presence in Peninsular Malaysia is uncertain. Its common names are brown slender toad, Matang stream toad, and cricket-voiced toad.

<i>Ansonia spinulifer</i> Species of amphibian

Ansonia spinulifer, also known as spiny slender toad or Kina Balu stream toad, is a species of true toad in the family Bufonidae. It is found in Sarawak and Sabah, northern Borneo (Malaysia), and presumably also in Kalimantan on the Indonesian part of the island.

<i>Leptobrachium montanum</i> Species of frog

Leptobrachium montanum is a species of frog from the family Megophryidae. It is endemic to Borneo and is, as currently defined, found in Kalimantan (Indonesia), Sabah and Sarawak (Malaysia), and Labi, Belait (Brunei). However, the nominal Leptobrachium montanum is a composed of more than one lineage. Available information mostly refers to this composite rather than the "true" Leptobrachium montanum. Common names montane large-eyed litter frog, mountain spadefoot toad, and mountain litter frog have been coined for it.

Microhyla borneensis, also known as the Matang narrow-mouthed frog, is a species of microhylid frog found in the Matang Range in Sarawak, Borneo. It was once the smallest known frog from the Old World. Adult males of this species have a snout-vent length (SVL) of 10.6–12.8 mm (0.42–0.50 in), but adult males can reach a maximum of 13 mm (0.51 in),and adult females of this species have a snout-vent length of 16–19 mm (0.63–0.75 in), Tadpoles measure just 3 mm.

<i>Nanohyla petrigena</i> Species of frog

Nanohyla petrigena is a species of frog in the family Microhylidae. It is found in northern and central Borneo and in the Sulu Archipelago of the Philippines. The common names pothole narrow-mouthed frog and Kapit rice frog have been coined for the species.

Phrynobatrachus irangi is a species of frog in the family Phrynobatrachidae. It is endemic to Kenya and is known only from two localities, its type locality, the eponymous Irangi Forest on the south-eastern slopes of Mount Kenya, and Kimande on the south-eastern slopes of the Aberdare Range. Common name Irangi puddle frog has been coined for it.

Meristogenys amoropalamus is a species of frog in the family Ranidae. It is endemic to northern Borneo and occurs in northwestern Sabah and northeastern Sarawak (Malaysia) and in northeastern Kalimantan (Indonesia). Common names mountain Borneo frog and mountain torrent frog have been coined for it. Studies of its larvae revealed that the nominal species contained two cryptic forms, and in 2011, Shimada and colleagues described Meristogenys dyscritus as a separate species.

Meristogenys kinabaluensis is a species of frog in the family Ranidae. It is endemic to Borneo and is found in Sabah, Sarawak (Malaysia), and Kalimantan (Indonesia). The specific name refers to its type locality, Mount Kinabalu.

Meristogenys macrophthalmus is a species of frog in the family Ranidae. It is endemic to Sarawak in northern Borneo (Malaysia) and is only known from its type locality in the Bintulu District. The specific name macrophthalmus is derived from the Greek words macros (="large") and ophthalmos (="eye") and refers to the large eyes of this frog. Common names Matsui's Borneo frog, large-eyed torrent frog, and big-eyed torrent frog have been coined for it.

<i>Meristogenys orphnocnemis</i> Ppecies of frog in family Ranidae

Meristogenys orphnocnemis is a species of frog in the family Ranidae, sometimes known as Sabah Borneo frog or dusky-footed torrent frog. It is endemic to Borneo and found in the mountains of Sabah (Malaysia), Brunei, and East Kalimantan (Indonesia). Its natural habitats are hilly lowland rainforest, also occurring in slightly disturbed forests. Tadpoles live in clear, rocky forest streams where they cling to rocks in strong currents. Siltation of streams caused by deforestation is a threat to this species.

Meristogenys phaeomerus is a species of frog in the family Ranidae. It is endemic to Borneo and known from central Sarawak (Malaysia) and adjacent Kalimantan (Indonesia). The specific name phaeomerus is derived from the Greek phaios for "dusky" and meros for "thigh", in reference to the appearance of the rear of the thigh. Common names Kapit Borneo frog and Kapit torrent frog have been coined for it.

Meristogenys poecilus is a species of frog in the family Ranidae. It is endemic to Borneo and known from between central Sarawak (Malaysia) and central Kalimantan (Indonesia). The specific name poecilus is derived from the Greek poikolos, meaning "pied" or "blotched", in reference to diagnostic pattern on rear of the thigh. Common name Malaysian Borneo frog has been coined for this species.

Meristogenys whiteheadi is a species of frog in the family Ranidae. It is endemic to Borneo and found in both Indonesia (Kalimantan) and Malaysia. Meristogenys stigmachilus and Meristogenys stenocephalus, described as new species in 2011, were formerly included in this species. Owing to the difficulty of distinguishing these species under field conditions, the exact range of this species is uncertain. Its common name is Whitehead's Borneo frog or Whitehead's torrent frog.

Cornufer batantae is a species of frog in the family Ceratobatrachidae. It is endemic to West Papua, Indonesia, and is known from two islands near the New Guinean mainland, Batanta and Waigeo. There are also unconfirmed records from Yapen and Gag Islands. Common name Batanta wrinkled ground frog has been coined for the species.

Papurana aurata is a species of true frogs, the family Ranidae. It is only known from the area of its type locality near Nabire, in the Indonesian province of Papua, in New Guinea. The specific name aurata is Latin and refers to the gold-like colour of adult males.

<i>Chalcorana megalonesa</i> Species of amphibian

Chalcorana megalonesa is a species of true frog in the family Ranidae, the "true frogs". It is endemic to Borneo and is known from both Malaysia and Indonesia (Kalimantan). It was split off from Rana chalconota in 2009 by Robert Inger and colleagues, along with a number of other species. Common name large white-lipped frog has been coined for it.

<i>Chalcorana raniceps</i> Species of amphibian

Chalcorana raniceps, also known as the copper-cheeked frog, white-lipped frog, or Peters' Malaysian frog, is a species of "true frog" in the family Ranidae. It is endemic to Borneo, including Brunei Darussalam, Kalimantan (Indonesia), and Sarawak (Malaysia), although it is likely to occur more widely. Previously mixed with Chalcorana chalconota and believed to have much wider distribution, its range was delimited to Borneo in the revision of "Rana chalconota" complex by Robert Inger and colleagues in 2009.

Rhacophorus borneensis is a species of frog in the family Rhacophoridae. This recently (2013) described species is endemic to Malaysian Borneo where it is known from its type locality in the Maliau Basin Conservation Area, Sandakan Division, Sabah as well as from the Batang Ai National Park, Sarawak. Prior to its description, it was included in Rhacophorus reinwardtii. It is said to be "one of the prettiest frogs of Borneo". Common name Borneo flying frog has been coined for it.

Meristogenys maryatiae, also known as Maryati's torrent frog, is a species of frog in the family Ranidae. It is endemic to the state of Sabah, in the Malaysian part of Borneo. The specific name honours Prof. Datin Mohamed Maryati, entomologist from the Universiti Malaysia Sabah, who helped the describers of this species during their herpetological surveys in Sabah.

References

  1. 1 2 3 IUCN SSC Amphibian Specialist Group (2019). "Meristogenys jerboa". IUCN Red List of Threatened Species . 2019: e.T58370A123693073. doi: 10.2305/IUCN.UK.2019-1.RLTS.T58370A123693073.en . Retrieved 14 November 2021.
  2. 1 2 3 Frost, Darrel R. (2018). "Meristogenys jerboa (Günther, 1872)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 April 2018.
  3. 1 2 3 4 5 6 7 8 Haas, A.; Das, I. & Hertwig, S.T. (2018). "Meristogenys jerboa Western Torrent Frog". Frogs of Borneo. Retrieved 23 April 2018.
  4. 1 2 3 4 5 6 Shimada, Tomohiko; Matsui, Masafumi; Nishikawa, Kanto & Eto, Koshiro (2015). "A new species of Meristogenys (Anura: Ranidae) from Sarawak, Borneo". Zoological Science. 32 (5): 474–484. doi:10.2108/zs140289. hdl: 2433/216905 . PMID   26428726. S2CID   207285775.
  5. ↑ Inger, Robert F. & Stuebing, Robert B. (2009). "New species and new records of Bornean frogs (Amphibia: Anura)" (PDF). Raffles Bulletin of Zoology. 57: 527–535. Archived from the original (PDF) on 2016-03-04. Retrieved 2018-04-23.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.