| 释义 |
Definition of bichir in English: bichirnounˈbɪʃɪəˈbiSHir An elongated African freshwater fish with an armour of hard shiny scales and a series of separate fins along its back. （非洲）多鳍鱼 Genus Polypterus, family Polypteridae: several species, including P. senegalus Example sentencesExamples - Most of the increase in number of centers in ray-finned fishes also occurs in the gallium, where three subdivisions can be recognized in bichirs and some 13 in teleosts.
- All palaeoniscoids were extinct by the end of the Mesozoic, leaving only a few distant, primitive relatives alive today - the sturgeons, paddlefish, and bichirs.
- Within the Chondrostei, only sturgeons, bichirs and paddlefishes survive today, and many are threatened.
- Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish.
- Eleven species of bichirs inhabit shallow floodwater areas in tropical Africa rivers, where they feed on worms, insect larvae, and small insects.
Origin1960s: via French from dialect Arabic abu shīr. Definition of bichir in US English: bichirnounˈbiSHir An elongated African freshwater fish with an armor of hard shiny scales and a series of separate fins along its back. （非洲）多鳍鱼 Genus Polypterus, family Polypteridae: several species, including P. senegalus Example sentencesExamples - Most of the increase in number of centers in ray-finned fishes also occurs in the gallium, where three subdivisions can be recognized in bichirs and some 13 in teleosts.
- Within the Chondrostei, only sturgeons, bichirs and paddlefishes survive today, and many are threatened.
- Eleven species of bichirs inhabit shallow floodwater areas in tropical Africa rivers, where they feed on worms, insect larvae, and small insects.
- Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish.
- All palaeoniscoids were extinct by the end of the Mesozoic, leaving only a few distant, primitive relatives alive today - the sturgeons, paddlefish, and bichirs.
Origin1960s: via French from dialect Arabic abu shīr. |