单词	bichir
释义	bichir /ˈbɪʃɪə / noun An elongated African freshwater fish with an armour of hard shiny scales and a series of separate fins along its back. Genus Polypterus, family Polypteridae: several species, including P. senegalus. Within the Chondrostei, only sturgeons, bichirs and paddlefishes survive today, and many are threatened.... All palaeoniscoids were extinct by the end of the Mesozoic, leaving only a few distant, primitive relatives alive today - the sturgeons, paddlefish, and bichirs. Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish. Origin 1960s: via French from dialect Arabic abu shīr.
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