Hydrosaurus

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Hydrosaurus
Ambon-segelechse-01.jpg
Hydrosaurus amboinensis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Agamidae
Subfamily: Hydrosaurinae
Kaup, 1828
Genus: Hydrosaurus
Kaup, 1828 [1]
Type species
Hydrosaurus amboinensis
Species
Synonyms
  • LophuraGray, 1827
  • IstiurusCuvier, 1829

Hydrosaurus, commonly known as the sailfin dragons or sailfin lizards, is a genus in the family Agamidae. [2] These relatively large lizards are named after the sail-like structure on their tails. They are native to Indonesia (4 species) and the Philippines (1 species) where they are generally found near water, such as rivers and mangrove. [3] Sailfin lizards are semiaquatic and able to run short distances across water using both their feet and tail for support, similar to the basilisks. [4] They are threatened by both habitat loss and overcollection for the wild animal trade. [3]

In the 19th century, the genus was called Lophura, however in 1903 Poche pointed out that the name was pre-occupied by a genus of pheasants. [5] Since Günther in 1873, the Sulawesi populations were considered to belong to H. amboinensis; Denzer et al. in 2020 resurrected H. celebensis and H. microlophus, increasing the number of species from three to five. [5]

They are the only members of the subfamily Hydrosaurinae.

Species

There are currently five valid species according to the Reptile Database, [2] [3] [5]

ImageScientific nameCommon NameDistribution
Hydrosaurus amboinensis, male, Air besar (Passo), Ambon.png Hydrosaurus amboinensis (Schlosser, 1768)Moluccan sailfin lizard or Amboina sail-finned lizard, soa-soa water lizardWestern New Guinea, Ambon/Amboina Island and Ceram Island (Indonesia)
Hydrosaurus celebensis, male, Pattunuang, Sulawesi.png Hydrosaurus celebensis (Peters, 1872)Sulawesi black sailfin lizardIndonesia (Sulawesi)
Hydrosaurus microlophus, male, Rompegading, Sulawesi.png Hydrosaurus microlophus (Bleeker, 1860)Indonesian giant sailfin dragon,

Makassar sailfin lizard, or Sulawesi giant sailfin dragon

Indonesia (Sulawesi)
Hydrosaurus pustulatus -London Zoo, England-8a.jpg Hydrosaurus pustulatus (Eschsholtz, 1829)Philippine sailfin lizard, layagan, balubid, or ibid [6] [7] Philippine archipelago (except Palawan) [8]
Jielbeaumadier hydrosaure weberi 1 mjp paris 2013.jpeg Hydrosaurus weberi Barbour, 1911Weber's sailfin lizardTernate Island, North Maluku (Indonesia)

Halmahera Island, North Maluku (Indonesia)

Related Research Articles

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Agamidae is a family of over 550 species of iguanian lizards indigenous to Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards.

<i>Calotes</i> Genus of lizards

Calotes is a genus of lizards in the draconine clade of the family Agamidae. The genus contains 29 species. Some species are known as forest lizards, others as "bloodsuckers" due to their red heads, and yet others as garden lizards. The genus name Calotes has been derived from the Greek word Καλότης (Kalótës), meaning ‘beauty’, referring to the beautiful pattern of this genus.

<i>Lamprolepis</i> Genus of lizards

Lamprolepis is a genus of lizards, known commonly as emerald skinks, in the subfamily Lygosominae of the family Scincidae. Lygosoma is its closest genetic relative.

<span class="mw-page-title-main">Philippine sailfin lizard</span> Species of lizard

Hydrosaurus pustulatus, commonly known as the Philippine sailfin lizard or the Philippine sailfin dragon, is a large semiaquatic agamid lizard endemic to all of the major island groups of the Philippines, with the exception of the Palawan islands. Like other sailfin lizards, they are characterized by large sail-like dorsal crests on their tails. They can grow to a maximum length of around 3 to 4 ft. They are strong swimmers, and smaller juvenile lizards can run briefly on the water surface. They inhabit areas of heavy vegetation near coastlines and low-lying rivers, particularly in mangrove forests. They are also known locally as layagan or balubid in Tagalog and ibid in the Visayan languages, among other names.

<i>Hydrosaurus amboinensis</i> Species of lizard

The Moluccan sail-finned lizard or Ambon sailfin dragon is a large agamid lizard native to moluccas or Maluku Islands in Indonesia, growing to about one metre (3.3 ft) in length. It is often confused for being the largest of the sailfin dragons; however, that title belongs to Hydrosaurus microlophus, with the second largest of the sailfin dragons being Hydrosaurus celebensis.

<i>Lamprolepis smaragdina</i> Species of lizard

The emerald tree skink is sometimes (ambiguously) known as green tree skink or emerald green skink. It is a non-threatened species which is not commonly seen, but it is becoming more popular in the exotic pet trade. In the Philippines, it is called Tabili in the Cebuano language and in Waray.

<span class="mw-page-title-main">Draconinae</span> Subfamily of lizards

The Draconinae are a subfamily of reptiles in the family Agamidae found in southern Asia and Oceania. Some taxonomists believe these genera belong to the subfamily Agaminae.

<span class="mw-page-title-main">Weber's sailfin lizard</span> Species of lizard

Weber's sailfin lizard or Halmahera sailfin dragon, is a species of lizard in the family Agamidae. The species is endemic to Indonesia.

<i>Draco mindanensis</i> Species of lizard

Draco mindanensis, commonly known as the Mindanao flying dragon or Mindanao flying lizard, is a lizard species endemic to the Philippines. Characterized by a dull grayish brown body color and a vivid tangerine orange dewlap, this species is one of the largest of the genus Draco. It is diurnal, arboreal, and capable of gliding.

<i>Luperosaurus macgregori</i> Species of lizard

Luperosaurus macgregori, known commonly as MacGregor's wolf gecko or McGregor's flapped-legged gecko, is a species of gecko, a lizard in the family Gekkonidae. The species is endemic to the Philippines.

Malayodracon is a genus of lizard within the family Agamidae. The genus is monotypic, containing the sole species Malayodracon robinsonii. The species, also known commonly as Robinson's anglehead lizard and Robinson's forest dragon, is endemic to Southeast Asia. No subspecies are recognized as being valid.

<span class="mw-page-title-main">Ota's mountain lizard</span> Species of lizard

Ota's mountain lizard is a species of lizard in the family Agamidae. The species is native to Southern Asia.

<i>Diploderma yulongense</i> Species of lizard

Diploderma yulongense is a species of lizard found in the Chinese province of Yunnan. It was first collected in 1914, but not recorded again in the wild until 2012, when it was described based on the original and new specimens.

Diploderma zhaoermii is a species of lizard in the family Agamidae. The species is endemic to Sichuan, China.

<i>Cristidorsa</i> Genus of lizards

Cristidorsa is a genus of lizards in the family Agamidae native to India and Myanmar. The name Cristidorsa is Latin for "ridged dorsum", in reference to the ridges on the backs of lizards in this genus. The common name ridged dragons was suggested by the authors of the 2018 genus description. The species were originally placed in the genus Japalura.

<i>Diploderma</i> Genus of lizards

Diploderma is a genus of lizards in the family Agamidae. Species of Diploderma are native to Myanmar, China, Vietnam, Taiwan, and Japan. Most of the species are found in China, including many endemics.

Diploderma grahami, also known commonly as Graham's japalure, is species of lizard in the family Agamidae. The species is endemic to China.

Hypsilurus hikidanus is a species of lizard in the family Agamidae. The species is native to the island of New Guinea.

<i>Hydrosaurus celebensis</i> Species of lizard

The Sulawesi black sailfin lizard is a species of agamid native to Indonesia. It is the second largest species of sailfin dragon, with only the Sulawesi giant sailfin dragon being larger., exceeding 1000 mm in total length, possibly 1200 mm. Head, neck, gular region and shoulder completely black; a row of enlarged flat, sometimes conical scales on either side of the neck; nuchal and dorsal crests continuous; a group of dirty white enlarged flat scales on the anterior part of the dorsum; few (<10) additional enlarged scales approximately at midbody and before the hindlimbs. Dorsal colouration is typically yellowish, sometimes dark orange, interspersed with black spots; ventrally beige, limbs black with a few yellow spots; scales under fourth and fifth toes are broad with several keels from near the base of the toe; tail black, sail black or dark violet with black stripes.

<i>Hydrosaurus microlophus</i> Species of lizard

The Indonesian giant sailfin dragon is a species of agamid native to South Sulawesi Indonesia. It is the heaviest and longest species of sailfin lizard, making it the largest of all the Agamidae. It is often mistaken for H. amboinensis because of the incorrect information of Hydrosaurus amboinensis being the largest of the sailfin dragons.

References

  1. Hydrosaurus, ITIS report
  2. 1 2 Hydrosaurus, The Reptile Database
  3. 1 2 3 Cameron D. Siler, Andrés Lira-Noriega, Rafe M. Brown (2014). Conservation genetics of Australasian sailfin lizards: Flagship species threatened by coastal development and insufficient protected area coverage. Biological Conservation 169: 100–108. doi : 10.1016/j.biocon.2013.10.014
  4. Jackman Bauer (2008). Global diversity of lizards in freshwater (Reptilia: Lacertilia). Hydrobiologia 595(1): 581–586.
  5. 1 2 3 Denzer, W.; P.D. Campbell; U. Manthey; A. Glässer-Trobisch; A. Koch (2020). "Dragons in Neglect: Taxonomic Revision of the Sulawesi Sailfin Lizards of the Genus Hydrosaurus Kaup, 1828 (Squamata, Agamidae)". Zootaxa. 4747 (2): 275–301. doi:10.11646/zootaxa.4747.2.3. PMID   32230109. S2CID   214748049.
  6. "Third Quarter Topical Issue - Philippine Endemic Lizards". PhlPost. 20 July 2011. Retrieved 16 January 2024.
  7. Hydrosaurus pustulatus, IUCN
  8. Siler, Cameron D.; Lira-Noriega, Andrés; Brown, Rafe M. (January 2014). "Conservation genetics of Australasian sailfin lizards: Flagship species threatened by coastal development and insufficient protected area coverage". Biological Conservation. 169: 100–108. Bibcode:2014BCons.169..100S. doi:10.1016/j.biocon.2013.10.014.