# Luidia > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Luidia > Markdown URL: https://mediated.wiki/source/Luidia.md > Source: https://en.wikipedia.org/wiki/Luidia > Source revision: 1354660529 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{short description|Genus of echinoderms}} {{Italic title}} {{for|the company|Luidia, Inc.}} {{automatic taxobox | image = Luidia magnifica.jpg | image_caption = ''[Luidia magnifica](/source/Luidia_magnifica)'' | parent_authority = [Sladen](/source/Percy_Sladen), 1889[http://www.marinespecies.org/aphia.php?p=taxdetails&id=123129 Luidiidae] World Register of Marine Species. Retrieved 2011-08-29. | taxon = Luidia | authority = [Forbes](/source/Edward_Forbes), 1839[http://www.marinespecies.org/aphia.php?p=taxdetails&id=123260 Luidia Forbes, 1839] World Register of Marine Species. Retrieved 2011-08-29. | synonyms = *''Alternaster'' [Döderlein](/source/Ludwig_Heinrich_Philipp_D%C3%B6derlein), 1920 *''Armaster'' Döderlein, 1920 *''Astrella'' [Perrier](/source/Edmond_Perrier), 1882 *''Denudaster'' Döderlein, 1920 *''Hemicnemis'' [Müller](/source/Johannes_Peter_M%C3%BCller) & [Troschel](/source/Franz_Hermann_Troschel), 1840 *''Integraster'' Döderlein, 1920 *''Luidia (Luidia)'' Forbes, 1839 *''Luidia (Platasterias)'' ([Gray](/source/John_Edward_Gray), 1871) *''Maculaster'' Döderlein, 1920 *''Penangaster'' Döderlein, 1920 *''Petalaster'' Gray, 1840 *''Quinaster'' Döderlein, 1920 *''Senegaster'' Döderlein, 1920 | synonyms_ref = }} '''''Luidia''''' is a [genus](/source/genus) of [starfish](/source/starfish) in the [family](/source/Family_(taxonomy)) Luidiidae in which it is the only genus. Species of the family have a [cosmopolitan distribution](/source/cosmopolitan_distribution).[http://data.gbif.org/species/browse/resource/791/taxon/2957537/ Classification of Genus: ''Luidia''] Global Biodiversity Information Facility. Retrieved 2011-08-29. ==Characteristics== Members of the genus are characterised by having long arms with pointed tips fringed with spines.[http://www.britannica.com/EBchecked/topic/351003/Luidia ''Luidia''] Encyclopædia Britannica Online. Retrieved 2011-08-29. Their upper surfaces are covered with [paxillae](/source/Paxilla_(ossicle)), pillar-like spines with flattened summits covered with minute spinules. The upper marginal plates are replaced by paxillae, but the lower marginal plates are large and covered with paxillae. The [tube feet](/source/tube_feet) do not have suckers, but have two swollen regions. A mouth, oesophagus, and cardiac stomach are seen, but no pyloric stomach or anus is present. The [gonad](/source/gonad)s are underneath the sides of each arm.[http://species-identification.org/species.php?species_group=echinodermata&id=10&menuentry=groepen Family Luidiidae] Marine Species Identification Portal. Retrieved 2011-08-29. The early [larva](/source/larva)l stages of starfish are known as [bipinnaria](/source/bipinnaria)l larvae, and members of this genus do not continue their development after this stage into a brachiolar stage before undergoing [metamorphosis](/source/metamorphosis). However, they are capable of larval [cloning](/source/cloning), with [asexual reproduction](/source/asexual_reproduction) taking place while they are larvae. This has been shown to take place both in the field and in laboratory cultures and has been studied by molecular analysis of [sequences](/source/DNA_sequencing) of mitochondrial [tRNA](/source/Transfer_RNA) to identify the [taxa](/source/Taxon) involved.[http://www.biolbull.org/cgi/content/full/204/3/246 Identification of Asteroid Genera With Species Capable of Larval Cloning] Retrieved 2011-08-29. ==Species== {{As of|2024}}, the following species are recognized by the World Register of Marine Species: {{div col|colwidth=20em}} *''[Luidia alternata](/source/Luidia_alternata)'' {{small|(Say, 1825)}} – banded sea star *''[Luidia amurensis](/source/Luidia_amurensis)'' {{small|Doderlein, 1920}} *''[Luidia armata](/source/Luidia_armata)'' {{small|Ludwig, 1905}} *''[Luidia asthenosoma](/source/Luidia_asthenosoma)'' {{small|Fisher, 1906}} *''[Luidia atlantidea](/source/Luidia_atlantidea)'' {{small|Madsen, 1950}} *''[Luidia australiae](/source/Luidia_australiae)'' {{small|Doderlein, 1920}} *''[Luidia avicularia](/source/Luidia_avicularia)'' {{small|Fisher, 1913}} *''[Luidia barbadensis](/source/Luidia_barbadensis)'' {{small|Perrier, 1881}} *''[Luidia bellonae](/source/Luidia_bellonae)'' {{small|Lütken, 1865}} *''[Luidia changi](/source/Luidia_changi)'' {{small|Liu, Liao & Li, 2006}} *''[Luidia ciliaris](/source/Luidia_ciliaris)'' {{small|(Philippi, 1837)}} – seven-armed star *''[Luidia clathrata](/source/Luidia_clathrata)'' {{small|(Say, 1825)}} – slender-armed starfish, gray sea star, lined sea star *''[Luidia columbia](/source/Luidia_columbia)'' {{small|(Gray, 1840)}} *''[Luidia denudata](/source/Luidia_denudata)'' {{small|Koehler, 1910}} *''[Luidia difficilis](/source/Luidia_difficilis)'' {{small|Liu, Liao & Li, 2006}} *''[Luidia ferruginea](/source/Luidia_ferruginea)'' {{small|Ludwig, 1905}} *''[Luidia foliolata](/source/Luidia_foliolata)'' {{small|(Grube, 1866)}} – spiny mudstar, leafy flat star, sand star *''[Luidia gymnochora](/source/Luidia_gymnochora)'' {{small|Fisher, 1913}} *''[Luidia hardwicki](/source/Luidia_hardwicki)'' {{small|(Gray, 1840)}} *''[Luidia herdmani](/source/Luidia_herdmani)'' {{small|A.M. Clark, 1953}} *''[Luidia heterozona](/source/Luidia_heterozona)'' {{small|Fisher, 1940}} *''[Luidia hexactis](/source/Luidia_hexactis)'' {{small|H.L. Clark, 1938}} *''[Luidia inarmata](/source/Luidia_inarmata)'' {{small|Doderlein, 1920}} *''[Luidia integra](/source/Luidia_integra)'' {{small|Koehler, 1910}} *''[Luidia iwakiensis](/source/Luidia_iwakiensis)'' {{small|Kobayashi, Hibino, Yamato & Fujita, 2024}} *''[Luidia latiradiata](/source/Luidia_latiradiata)'' {{small|(Gray, 1871)}} *''[Luidia lawrencei](/source/Luidia_lawrencei)'' {{small|Hopkins & Knott, 2010}} *''[Luidia longispina](/source/Luidia_longispina)'' {{small|Sladen, 1889}} *''[Luidia ludwigi](/source/Luidia_ludwigi)'' {{small|Fisher, 1906}} *''[Luidia maculata](/source/Luidia_maculata)'' {{small|Müller & Troschel, 1842}} *''[Luidia magellanica](/source/Luidia_magellanica)'' {{small|Leipoldt, 1895}} *''[Luidia magnifica](/source/Luidia_magnifica)'' {{small|Fisher, 1906}} – magnificent star *''[Luidia mauritiensis](/source/Luidia_mauritiensis)'' {{small|Koehler, 1910}} *''[Luidia neozelanica](/source/Luidia_neozelanica)'' {{small|Mortensen, 1925}} *''[Luidia orientalis](/source/Luidia_orientalis)'' {{small|Fisher, 1913}} *''[Luidia patriae](/source/Luidia_patriae)'' {{small|Bernasconi, 1941}} *''[Luidia penangensis](/source/Luidia_penangensis)'' {{small|de Loriol, 1891}} *''[Luidia phragma](/source/Luidia_phragma)'' {{small|H.L. Clark, 1910}} *''[Luidia porteri](/source/Luidia_porteri)'' {{small|A.H. Clark, 1917}} *''[Luidia prionota](/source/Luidia_prionota)'' {{small|Fisher, 1913}} *''[Luidia quinaria](/source/Luidia_quinaria)'' {{small|von Martens, 1865}} – spiny sand sea star *''[Luidia sagamina](/source/Luidia_sagamina)'' {{small|Doderlein, 1920}} *''[Luidia sarsii](/source/Luidia_sarsii)'' {{small|Düben & Koren, 1845}} *''[Luidia savignyi](/source/Luidia_savignyi)'' {{small|(Audouin, 1826)}} *''[Luidia senegalensis](/source/Luidia_senegalensis)'' {{small|(Lamark, 1816)}} – nine-armed sea star *''[Luidia sibogae](/source/Luidia_sibogae)'' {{small|Doderlein, 1920}} *''[Luidia superba](/source/Luidia_superba)'' {{small|A.H. Clark, 1917}} – giant sea star *''[Luidia tessellata](/source/Luidia_tessellata)'' {{small|Lutken, 1859}} *''[Luidia yesoensis](/source/Luidia_yesoensis)'' {{small|[Goto](/source/Seitar%C5%8D_Got%C5%8D), 1914}} {{div col end}} {{clr}} Gulf Shores, Alabama, 2015 Luidia alternata.jpg|''[Luidia alternata](/source/Luidia_alternata)'' Luidia atlantidea (MNHN-IE-2014-622).jpg|''[Luidia atlantidea](/source/Luidia_atlantidea)'' ([MNHN](/source/MNHN)) Luidia australiae.jpg|''[Luidia australiae](/source/Luidia_australiae)''. Luidia cilliaris 01 Espen Rekdal.jpg|''[Luidia ciliaris](/source/Luidia_ciliaris)'' Luidia clathrata.jpg|''[Luidia clathrata](/source/Luidia_clathrata)''. Luida columbia, dorsal view.jpg|''[Luida columbia](/source/Luida_columbia)''. Olympic Coast National Marine Sanctuary 2010 Luidia foliolata.jpg|''[Luidia foliolata](/source/Luidia_foliolata)'' Luidia heterozona.jpg|''[Luidia heterozona](/source/Luidia_heterozona)''. Luida latiradiata, dorsal view.jpg|''[Luida latiradiata](/source/Luida_latiradiata)''. Luidia lawrencei (USNM 6923) 001.jpeg|''[Luidia lawrencei](/source/Luidia_lawrencei)''. Luidia ludwigi scotti.jpg|''[Luidia ludwigi](/source/Luidia_ludwigi)''. Eight-armed sand star (Luidia maculata).jpg|''[Luidia maculata](/source/Luidia_maculata)''. Luidia magellanica.jpg|''[Luidia magellanica](/source/Luidia_magellanica)'' Luidia_magnifica_mouth.jpg|''[Luidia magnifica](/source/Luidia_magnifica)'' (oral face). MA I317851 TePapa Luidia-neozelanica-Mortensen full.jpg|''[Luidia neozelanica](/source/Luidia_neozelanica)'' Luidia porteri (USNM 36947) 001.jpeg|''[Luidia porteri](/source/Luidia_porteri)''. Luidia quinaria.jpg|''[Luidia quinaria](/source/Luidia_quinaria)'' Luidia sagamina aciculata (11714484256).jpg|''[Luidia sagamina](/source/Luidia_sagamina)'' Luidia sarsi 01 Espen Rekdal.jpg|''[Luidia sarsi](/source/Luidia_sarsi)''. Luidia savignyi (Audouin, 1826).jpg|''[Luidia savignyi](/source/Luidia_savignyi)''. Nine-armed Sea Star (Luidia senegalensis) (4338628827).jpg|''[Luidia senegalensis](/source/Luidia_senegalensis)'' Luida superba, dorsal view.jpg|''[Luidia superba](/source/Luidia_superba)''. ==References== {{Reflist}} {{Taxonbar|from=Q3200764}} Category:Luidia Category:Starfish genera Category:Taxa named by Edward Forbes --- Adapted from the Wikipedia article [Luidia](https://en.wikipedia.org/wiki/Luidia) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Luidia?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.