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Mormyrus longirostris, commonly referred as the eastern bottle-nosed mormyrid, is a medium-sized ray-finned fish species belonging to the family Mormyridae. It was originally described by Wilhelm Peters in Monatsberichte der Akad. Wiss. Berlin , 1852.
Mormyromast, a type of electroreceptor found only in mormyrid fishes Further information: Electroreception and electrogenesis Elephantfish possess electric organs that generate weak electric fields , and electroreceptors ( ampullae of Lorenzini , knollenorgans , and Mormyromasts) that detect small variations in these electric fields caused by ...
Mormyromast, a type of electroreceptor found only in the skin of Mormyrid fishes These fish have two types of tuberous electroreceptor: [ note 2 ] the Knollenorgan [ 43 ] and the Mormyromast . [ 44 ] [ 45 ] Both organs are found in adult individuals, where they are lightly covered by epithelial cells and skin, while their sensitivity ranges ...
Mormyrus lacerda Castelnau, 1861 (Western bottlenose mormyrid) Mormyrus longirostris W. K. H. Peters, 1852 (Eastern bottlenose mormyrid) Mormyrus macrocephalus Worthington, 1929 (largehead mormyrid) Mormyrus macrophthalmus Günther, 1866 (Niger mormyrid) Mormyrus niloticus (Bloch & J. G. Schneider, 1801) (Egyptian trunkfish) Mormyrus ovis ...
Dolphins have evolved electroreception in structures different from those of fish, amphibians and monotremes. The hairless vibrissal crypts on the rostrum of the Guiana dolphin (Sotalia guianensis), originally associated with mammalian whiskers, are capable of electroreception as low as 4.8 μV/cm, sufficient to detect small fish. This is ...
The subfamily Mormyrinae contains all but one of the genera of the African freshwater fish family Mormyridae in the order Osteoglossiformes.They are often called elephantfish due to a long protrusion below their mouths used to detect buried invertebrates that is suggestive of a tusk or trunk (some such as Marcusenius senegalensis gracilis are sometimes called trunkfish though this term is ...
Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. The Latin name petersii is probably for the German naturalist Wilhelm Peters. The fish uses electrolocation to find prey, and has the largest brain-to-body oxygen use ratio of all known vertebrates (around 0.6). [2]
Marcusenius furcidens (Pellegrin, 1920) (Ivory Coast mormyrid) Marcusenius fuscus (Pellegrin, 1901) Marcusenius ghesquierei (Poll, 1945) (Busira mormyrid) Marcusenius greshoffii (Schilthuis, 1891) (Greshoff's mormyrid) Marcusenius intermedius Pellegrin, 1924 (Kasai mormyrid) Marcusenius johncygnar Boulenger, 1902 (Molas mormyrid)