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Myxine
''Myxine'' is a genus of hagfish, from the Greek μυξῖνος (''myxinos'', "slimy"). In 2021, three new species of ''Myxine'' were described from the Galápagos including '' M. phantasma'', the only species of ''Myxine'' to not have melanin-based pigments. Species * '' Myxine affinis'' Günther, 1870 (Patagonian hagfish) * ''Myxine australis'' Jenyns, 1842 (southern hagfish) * '' Myxine capensis'' Regan, 1913 (Cape hagfish) * '' Myxine circifrons'' Garman, 1899 (whiteface hagfish) * '' Myxine debueni'' Wisner & C. B. McMillan, 1995 (Magellan hagfish) * '' Myxine fernholmi'' Wisner & C. B. McMillan, 1995 (Falkland Islands hagfish) * '' Myxine formosana'' H. K. Mok & C. H. Kuo, 2001 (Formosa hagfish) * '' Myxine garmani'' D. S. Jordan & Snyder, 1901 (Garman's hagfish) * '' Myxine glutinosa'' Linnaeus, 1758 (Atlantic hagfish) *'' Myxine greggi'' * '' Myxine hubbsi'' Wisner & C. B. McMillan, 1995 (Hubbs' hagfish) * '' Myxine hubbsoides'' Wisner & C. B. McMillan, 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hagfish
Hagfish, of the class Myxini (also known as Hyperotreti) and order Myxiniformes , are eel-shaped, slime-producing marine fish (occasionally called slime eels). They are the only known living animals that have a skull but no vertebral column, although hagfish do have rudimentary vertebrae. Along with lampreys, hagfish are jawless; the two form the sister group to jawed vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago. The classification of hagfish had been controversial. The issue was whether the hagfish was a degenerate type of vertebrate-fish that through evolution had lost its vertebrae (the original scheme) and was most closely related to lampreys, or whether hagfish represent a stage that precedes the evolution of the vertebral column (the alternative scheme) as is the case with lancelets. Recent DNA evidence has supported the original scheme. The original scheme groups hagfish and lampreys together as cyclostomes (or histori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
