Meristogenys maryatiae

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Meristogenys maryatiae
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Meristogenys
Species:
M. maryatiae
Binomial name
Meristogenys maryatiae
Matsui  [ fr ], Shimada, and Sudin, 2010 [2]

Meristogenys maryatiae, also known as Maryati's torrent frog, is a species of frog in the family Ranidae. [1] [3] [4] [5] It is endemic to the state of Sabah, in the Malaysian part of Borneo. [1] [3] [4] 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. [2]

Contents

Description

Adult males measure 31–37 mm (1.2–1.5 in) and adult females, based on just two specimens, 65–66 mm (2.6–2.6 in) in snout–vent length. The body is moderately slender. The head is triangular and wider than it is long. The tympanum is distinct, but the supratympanic fold is weak. The fingers are slender and have tips of expanded into discs; no webbing is present. The hindlimbs are slender. The toe tips bear discs similar to the finger ones. The toes are fully webbed. The dorsum is shagreened. The dorsolateral folds are low and indistinct. Dorsal colouration is olive brown with dark spots. The iris is golden. The limbs have alternating light and dark brown cross bars. The lower surfaces are whitish, except for the paired subgular vocal sac in males, which is light brown. [2]

Tadpoles of Gosner stage 40 measure about 43 mm (1.7 in) in total length, of which the tail makes little more than one half. They are greenish yellow on head-body and tail, with black spots on body and caudal muscle. [2]

Dsitribution

This species is known from the western slopes of the Crocker Range in Sabah. [1] [3]

Habitat and conservation

Meristogenys maryatiae occurs in lowland to lower montane tropical primary and secondary rainforests at elevations of 155–1,000 m (509–3,281 ft) above sea level; it has also been recorded in a stream running through a rubber plantation. [1] Adults have been seen among stones and grass on riverbeds and on rocks in streams; calling males were observed by a wide stream at night. Tadpoles have been seen clinging to bare rock in a shallow portion of a swift stream. [1] [2]

Meristogenys maryatiae is common throughout its known range. Although it is probably locally affected by habitat loss, much of the known range is within a well-protcted national park, the Crocker Range National Park; it probably also occurs in the Kinabalu National Park. It is locally collected for food, but this is not considered a threat. [1]

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>Staurois</i> Genus of amphibians

Staurois is a small genus of minuscule true frogs. Most species in the genus are restricted to Borneo, but two species are from the Philippines. This genus is a quite ancient member of the true frog family, Ranidae. They are typically found in or near rapidly flowing, small rocky streams, and are sometimes known as splash frogs or foot-flagging frogs. The latter name refers to their unusual behavior of conspicuously waving their hindlegs and feet, as a way of signalling other members of the species. Similar behavior has also been documented in other frog genera, notably Hylodes and Micrixalus.

Ansonia guibei is a species of toad in the family Bufonidae. It is endemic to northwestern Sabah in Malaysian Borneo. The specific name guibei honors Jean Guibé, a French zoologist and herpetologist. Common names Mesilau toad and Mesilau stream toad have been coined for it.

Ansonia platysoma, also known as the flat-bodied slender toad and Luidan stream toad, is a species of toad in the family Bufonidae. It is endemic to the island of Borneo and known from Sabah and Sarawak, Malaysia, and from Brunei. Its closest relative is Ansonia kelabitensis.

<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.

Ansonia torrentis, also known as the Gunung Mulu stream toad and torrent slender toad, is a species of toad in the family Bufonidae. It is endemic to Mount Mulu in Sarawak, Borneo (Malaysia). The specific name torrentis refers to the habitat at its type locality, a stream running down a steep mountainside.

<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.

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.

<i>Meristogenys jerboa</i> Species of frog

Meristogenys jerboa is a species of frog in the family Ranidae. It is endemic to western Sarawak in Borneo. Common names western torrent frog, Matang torrent frog, and Gunther's Borneo frog have been coined for it. 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.

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> Species 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 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.

<i>Staurois tuberilinguis</i> Species of amphibian

Staurois tuberilinguis is a semi-aquatic amphibian of the true frog family (Ranidae). This diurnal and crepuscular frog is also commonly associated with its very close relative Staurois parvus. In fact, many do not consider the two species to be taxonomically separate. This species is commonly found within the tropical rainforests of on Borneo, Malaysia next to fast-flowing rivers and streams. Due to the frog’s noisy choice of habitat, S. parvus are well-known for their multi-modal system of communication that combines acoustic calls with visual display signals. S. parvus seems to be in decline in part of its range, but overall is listed as being of "least concern" in the IUCN Red List of Threatened Species. It is threatened by habitat loss, especially by deforestation and sedimentation of streams.

<i>Feihyla kajau</i> Species of frog

Feihyla kajau, also known as the Dring's flying frog, white-eared tree frog, and white-eared jelly-nest frog, is a species of frog in the family Rhacophoridae. It is endemic to Borneo and found in all major jurisdictions of the island Kalimantan (Indonesia), Sabah and Sarawak (Malaysia), and Brunei. The specific name kajau is Berawan for "charming".

<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.

Sabahphrynus is a monotypic genus of amphibians in the family Bufonidae. The sole species is Sabahphrynus maculatus, also known as the spotted Asian tree toad or Sabah earless toad. It is endemic to Borneo where it is only known from Sabah, East Malaysia.

<i>Feihyla inexpectata</i> Species of frog

Feihyla inexpectata is a species of frog in the family Rhacophoridae. This recently (2014) described species is endemic to Malaysian Borneo and known from its type locality in the Maliau Basin Conservation Area, Sandakan Division, Sabah and from Danum Valley, also in Sabah. Common name Bornean opposite-fingered tree frog has been coined for it.

<i>Rhacophorus borneensis</i> Species of frog

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.

References

  1. 1 2 3 4 5 6 7 IUCN SSC Amphibian Specialist Group (2018). "Meristogenys maryatiae". IUCN Red List of Threatened Species . 2018: e.T79096177A123533800. Retrieved 6 November 2020.
  2. 1 2 3 4 5 Matsui, Masafumi; Shimada, Tomohiko & Sudin, Ahmad (2010). "A new species of Meristogenys (Amphibia, Anura, Ranidae) from Sabah, Borneo". Zoological Science. 27 (1): 61–66. doi:10.2108/zsj.27.61. hdl: 2433/216892 . PMID   20064010. S2CID   6583.
  3. 1 2 3 Frost, Darrel R. (2020). "Meristogenys maryatiae Matsui, Shimada, and Sudin, 2010". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001 . Retrieved 6 November 2020.
  4. 1 2 Haas, A.; Das, I. & Hertwig, S.T. (2020). "Meristogenys maryatiae (Maryati's Torrent Frog)". Frogs of Borneo – The frogs of East Malaysia and their larval forms. Retrieved 6 November 2020.
  5. ↑ "Ranidae". AmphibiaWeb. University of California, Berkeley. 2020. Retrieved 6 November 2020.
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