The Elopiformes/ˈɛləpɪfɔːrmiːz/ are the order of ray-finned fish including the tarpons, tenpounders, and ladyfish, as well as a number of extinct types. They have a long fossil record, easily distinguished from other fishes by the presence of an additional set of bones in the throat.[3]
They are related to the order of eels, although the adults superficially resemble very large or giant herrings in appearance. The larvae, however, are leptocephalic, looking very similar to those of eels.[3]
Classification
Although many fossil forms are known, the order is relatively small today, containing just two genera and nine species:[4]
Genus Elops Linnaeus 1766 non Bonaparte 1831 non Commerson ex Lacépède 1801 [Helops Müller 1835 non Brandt & Ratzeburg 1833 non Agassiz 1846 non Browne 1789; Ellops Minding 1832 non Gistel 1848; Alloelops (Nybelin 1979); Elops (Alloelops) Nybelin 1979; Elops (Gularus) Whitley 1940; Gularus (Whitley 1940); Mugilomorus Lacépède 1803; Trichonotus Rafinesque 1815 non Bloch & S Schneider 1801; Harengus Catesby 1771 non Geoffroy 1767 non Klein 1775 ex Walbaum 1792 non De Garsault 1764] (seven species, one of which was described in 2010)
Genus Megalops Lacépède 1803 [Amia Browne 1756 ex Browne 1789 non Gronow 1763 ex Gray 1854 non Meuschen 1781 non Linnaeus 1766; Brisbania de Castelnau 1878; Cyprinodon Hamilton 1822 non Lacépède 1803; Oculeus Commerson ex Lacépède 1803; Tarpon Jordan & Evermann 1896] (two species)
Timeline of genera
"Megalopiformes"
References
^Werner Schwarzhans (2018). "A review of Jurassic and Early Cretaceous otoliths and the development of early morphological diversity in otoliths". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 287 (1): 75–121. doi:10.1127/njgpa/2018/0707.
^Thomas J. Near; Christine E. Thacker. "Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)". Bulletin of the Peabody Museum of Natural History. 65 (1): 3–302. doi:10.3374/014.065.0101.
^ abMcCosker, John F. (1998). Paxton, J.R.; Eschmeyer, W.N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. pp. 85–86. ISBN0-12-547665-5.