3) a testaceous operculum.
介壳状的鳃盖骨
4) opercular
[əu'pə:kjulə]
主鳃盖骨
1.
The annuli on scale,opercular,dorsal fin spine,vertebra and cleithrum of Tor(Folifer) Brevifilis Brevifilis Peter were observed carefully and also the age of the species was diagnosed on the basis of 316 specimens collected respectively from the Qingshui River and the Duliu River in Guizhou,China.
根据分别采集于贵州清水江和都柳江的316例瓣结鱼标本,观察了瓣结鱼鳞片、主鳃盖骨、背鳍条、脊椎骨和匙骨等5种材料的年轮特征并进行了瓣结鱼的年龄鉴定。
5) interoperculum,preoperculum
间鳃盖骨
6) opercular series
鳃盖骨系
补充资料：鳃盖
1.鱼鳃外部的皮褶。有些鱼类可据鳃盖推算鱼龄。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条