# Hydrosaurus > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Hydrosaurus > Markdown URL: https://mediated.wiki/source/Hydrosaurus.md > Source: https://en.wikipedia.org/wiki/Hydrosaurus > Source revision: 1318733891 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Genus of lizards}} {{About|a lizard genus|the mosasaur which was previously placed in a genus with the same name|Pontosaurus{{!}}''Pontosaurus''}} {{Automatic taxobox | image = Ambon-segelechse-01.jpg | image_caption = ''[Hydrosaurus amboinensis](/source/Hydrosaurus_amboinensis)'' | parent_authority = [Kaup](/source/Johann_Jakob_Kaup), 1828 | taxon = Hydrosaurus | authority = [Kaup](/source/Johann_Jakob_Kaup), 1828[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=209049 ''Hydrosaurus''], ITIS report | type_species = ''Hydrosaurus amboinensis'' | subdivision_ranks = Species | subdivision = *''[Hydrosaurus amboinensis](/source/Hydrosaurus_amboinensis)'' *''[Hydrosaurus celebensis](/source/Hydrosaurus_celebensis)'' *''[Hydrosaurus microlophus](/source/Hydrosaurus_microlophus)'' *''[Hydrosaurus pustulatus](/source/Hydrosaurus_pustulatus)'' *''[Hydrosaurus weberi](/source/Hydrosaurus_weberi)'' |synonyms = *''Lophura'' {{small|Gray, 1827}} *''Istiurus'' {{small|Cuvier, 1829}} }} '''''Hydrosaurus''''', commonly known as the '''sailfin dragons''' or '''sailfin lizards''', is a genus in the family [Agamidae](/source/Agamidae).[http://reptile-database.reptarium.cz/search.php?taxon=&genus=Hydrosaurus&exact%5B%5D=genus&species=&subspecies=&author=&year=&common_name=&location=&holotype=&reference=&submit=Search ''Hydrosaurus''], The Reptile Database These relatively large lizards are named after the sail-like structure on their tails. They are native to [Indonesia](/source/Indonesia) (four species) and the [Philippines](/source/Philippines) (one species), where they are generally found near water, such as rivers and [mangrove](/source/mangrove) swamps.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}} Sailfin lizards are [semiaquatic](/source/semiaquatic) and able to run short distances across water using both their feet and tail for support, [similar to the basilisks](/source/Basiliscus_(genus)).Jackman Bauer (2008). Global diversity of lizards in freshwater (Reptilia: Lacertilia). Hydrobiologia 595(1): 581–586. They are threatened by both [habitat loss](/source/habitat_loss) and overcollection for the wild-animal trade. In the 19th century, the genus was called ''Lophura'', but in 1903, Poche pointed out that the name was preoccupied by a [genus of pheasants](/source/Gallopheasant). 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. They are the [only members](/source/Monotypic_taxon) of the subfamily '''Hydrosaurinae'''. ==Species== Currently, five species are valid according to the [Reptile Database](/source/Reptile_Database),{{cite journal| author1=Denzer, W. | author2=P.D. Campbell | author3=U. Manthey | author4=A. Glässer-Trobisch | author5=A. Koch | year=2020 | title=Dragons in Neglect: Taxonomic Revision of the Sulawesi Sailfin Lizards of the Genus Hydrosaurus Kaup, 1828 (Squamata, Agamidae) | journal=Zootaxa | volume=4747 | issue=2 | pages=275–301 | doi=10.11646/zootaxa.4747.2.3 | pmid=32230109 | s2cid=214748049 |url= https://www.researchgate.net/publication/339660114}} {| class="wikitable" |- ! Image !! Scientific name !! Common name !! Distribution |- |120px || ''[Hydrosaurus amboinensis](/source/Hydrosaurus_amboinensis)'' (Schlosser, 1768) || Moluccan sailfin lizard or Amboina sail-finned lizard, soa-soa water lizard || Western New Guinea, Ambon/Amboina Island and Ceram Island (Indonesia) |- |120px || ''[Hydrosaurus celebensis](/source/Hydrosaurus_celebensis)'' (Peters, 1872) || Sulawesi black sailfin lizard|| Indonesia (Sulawesi) |- |120px || ''[Hydrosaurus microlophus](/source/Hydrosaurus_microlophus)'' (Bleeker, 1860) || Indonesian giant sailfin dragon, Makassar sailfin lizard, or Sulawesi giant sailfin dragon | Indonesia (Sulawesi) |- |120px || ''[Hydrosaurus pustulatus](/source/Hydrosaurus_pustulatus)'' (Eschsholtz, 1829) || Philippine sailfin lizard, layagan, balubid, or ibid{{cite news |title=Third Quarter Topical Issue - Philippine Endemic Lizards |url=https://www.phlpost.gov.ph/whats-happening.php?id=1391 |access-date=16 January 2024 |work=PhlPost |date=20 July 2011 |archive-date=12 December 2013 |archive-url=https://archive.today/20131212134244/https://www.phlpost.gov.ph/whats-happening.php?id=1391 |url-status=dead }}[http://www.iucnredlist.org/apps/redlist/details/10335/0 ''Hydrosaurus pustulatus''], IUCN|| Philippine archipelago (except [Palawan](/source/Palawan)){{cite journal |last1=Siler |first1=Cameron D. |last2=Lira-Noriega |first2=Andrés |last3=Brown |first3=Rafe M. |title=Conservation genetics of Australasian sailfin lizards: Flagship species threatened by coastal development and insufficient protected area coverage |journal=Biological Conservation |date=January 2014 |volume=169 |pages=100–108 |doi=10.1016/j.biocon.2013.10.014|bibcode=2014BCons.169..100S }} |- |120px || ''[Hydrosaurus weberi](/source/Hydrosaurus_weberi)'' Barbour, 1911 || Weber's sailfin lizard||Ternate Island, North Maluku (Indonesia) Halmahera Island, North Maluku (Indonesia) |- |} ==References== {{Reflist|40em}} *{{Wikispecies-inline}} *{{Commons category-inline}} * [http://zipcodezoo.com/Animals/H/Hydrosaurus_amboinensis/ ''Hydrosaurus''], ZipCodeZoo.com {{Taxonbar|from=Q374856}} {{Authority control}} Category:Hydrosaurus Category:Lizard genera Category:Taxa named by Johann Jakob Kaup {{agamidae-stub}} --- Adapted from the Wikipedia article [Hydrosaurus](https://en.wikipedia.org/wiki/Hydrosaurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Hydrosaurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.