استخوانچهداران
Sign in to saveAlso known as ostariophysians
Ostariophysi is the second-largest superorder of fish. Members of this superorder are called ostariophysians. This diverse group contains 10,758 species, about 28% of known fish species in the world and 68% of freshwater species, and are present on all continents except Antarctica. They have a number of common characteristics such as an alarm substance and a Weberian apparatus. Members of this group include fish important to people for food, sport, the aquarium industry, and research.
Species
骨鳔类（學名：Ostariophysi）依不同的分类法也作骨鳔总目、骨鳔亚群，是辐鳍鱼纲的一个演化支，本类鱼都具有韦伯器官（英语：Weberian apparatus）（在第1至3椎骨两侧的4块小骨），鳔通常接鳔管与肠连接，一般各鳍无棘，如有腹鳍，在胸鳍后方为腹位。骨鳔类有6000多种鱼，世界上大部分淡水鱼都属于骨鳔类，最大的达4.5米，重达300千克，最小的只有几毫米，过寄生生活。骨鳔类中只有两科是生活在海水中。均为卵生。
via
Wikidata facts
Show 5 more facts
- taxon common name
- 骨鳔总目
- taxon name
- Ostariophysi
- Commons category
- Ostariophysi
- topic's main category
- Category:Ostariophysi
- temporal range start
- Jurassic
Sources (1)
via Wikidata · CC0