bichir

Also known as Polypteridae

Bichirs and the reedfish comprise Polypteridae , a family of archaic ray-finned fishes and the only family in the order Polypteriformes .

OverviewAI-generated

Polypteridae is a taxonomic family within the order Polypteriformes. The group is classified under the class Cladistii and the phylum Chordata. Its scientific name was established by Bonaparte in 1835, and the family is governed by the International Code of Zoological Nomenclature. The common name for members of this family is bichirs, while the Norwegian common name is bikirfamilien.

These organisms inhabit freshwater environments. The family is currently accepted in taxonomic records. One specific species within this group is the Senegal Bichir, which belongs to the class Actinopterygii. This species is not extinct and has recorded 134 observations. The family Polypteridae is referenced by 370 other encyclopedia articles.

Synthesized by Vinony from 24 facts across 4 sources: Wikidata, iNaturalist, WoRMS, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Species

bichirs

Family

PhylumChordata
ClassCladistii
OrderPolypteriformes
FamilyPolypteridae

Habitatfreshwater

Observations134

多鳍鱼科（学名：Polypteridae）是軟骨硬鱗亞綱 (Chondrostei)多鳍鱼目（Polypteriformes）目前仅存的一科，现存二属，又稱恐龍魚，是比较古老的辐鳍鱼类，全身有类似骨板的硬鳞，胸鳍有小的肉质叶，有鳍基骨，并不直接和肩胛骨连接，多鳍鱼有厚實的硬鱗，表面光滑有黏膜包裹，背部依據品種不同而有6至20個棘狀背鳍，這些棘狀背鳍中的每一條都有鋒利的刺狀鰭骨。他們的下頜結構比起真骨附類的魚，更相似於四足類的結構。多鳍鱼有一定原始特徵。這些的特徵是有的肉質基叶的胸鳍，這和腔棘魚相似，而他們也有呼吸孔 (spiracles)的。所有多鳍鱼目成員都在非洲的淡水河、湖區棲息，主要為沼澤、淺氾濫區和出海的河口。他們也有基礎的肺部，可以從空氣中吸取氧氣，当在水中的氧氣不足时，多鰭魚會快速地游到表面吸氣，此魚在幼魚期會像兩棲類的有外鰓。在这些種類之中的最大长度为30cm至100cm以上。

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