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This is a list of animals that live in the Galápagos Islands. The fauna of the Galápagos Islands include a total of 9,000 confirmed species. Of them, none have been introduced by humans, and seventeen are endemic. [citation needed] Due to amphibians intolerance of saltwater, no amphibians naturally occur on the Galapagos Islands.
The largest specimen from Tagus Cove in the Galapagos Islands had a radius, measured from the centre of the disc to the tip of the arms, of 41.5 centimetres (16.3 in). Its other dimensions were a disc radius of 4.5 centimetres (1.8 in), a maximum arm width of 6 centimetres (2.4 in) and a longest spine of 1.5 centimetres (0.59 in). [ 2 ]
Nidorellia armata, also known as the chocolate chip star (leading to easy confusion with Protoreaster nodosus), is a species of starfish from warmer parts of the East Pacific, where it ranges from the Gulf of California to northwest Peru, including the Galápagos. [2] It is the only species in the genus Nidorellia.
There are many organizations dedicated to preventing and eradicating invasive species. For instance, the Charles Darwin Foundation helped create the Galápagos Inspection and Quarantine System (SICGAL) that checks the luggage brought into the Galapagos Islands for potentially invasive animals and plants.
Main identification keys for this group include the presence of paxillae, granules, teeth, spines, or the shape and dimensions of marginal plate. [2] Location and habitat
These starfish have between 6 and 16 long, attenuated arms which they use for suspension feeding. [3] Other characteristics include a single series of marginals, a fused ring of disc plates, the lack of actinal plates, a spool-like ambulacral column, reduced abactinal plates, and crossed pedicellariae . [ 4 ]
The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered starfish.
Stegastes arcifrons, the island major or Galapagos gregory, is a damselfish of the family Pomacentridae native to the eastern Pacific Ocean. Its range extending from Costa Rica to the Cocos Islands, Malpelo Island, and the Galapagos Islands. It is found on rocky and coral reefs at depths ranging from 1 to 20 m (3 ft 3 in to 65 ft 7 in). [3]