鳃盖

gill cleft

鳃裂

鳃弓之间形成5对鳃裂(gill cleft),鳃裂内、外分别开口于咽部及鳃腔(软骨鱼类直接开口体表),硬骨鱼类的鳃腔外覆有鳃盖骨(内缘附有鳃盖膜),以一总的鳃孔(gill opening)通向体外.

Glochidium

介幼虫

鳃部还有一种特殊的寄生虫,称为钩介幼虫(Glochidium),它是背角无齿蚌、杜氏珠蚌的幼体,体长0.26-0.29毫米. 它寄生在鳃丝、鳃耙、鳃盖上、鳍条上、嘴边、口腔里等. 通常危害鱼苗和小规格幼鱼(9). 到目前为止,仅在红鲤、日本锦鲤、金鱼体上检得钩介幼虫.

quadrate bone

方骨

前鳃盖骨狭长,其前缘傍着后翼骨 ( metapterygoid )的上面及方骨( quadrate bone )下面. 后缘靠着鳃盖骨(operculurn ). 在前鳃盖骨和鳃盖骨之间及鳃盖骨的下面分别有一块小而薄的骨为间鳃盖骨( interoperculum)和下鳃盖骨( suboperculum ) .咽颅:咽颅的前颌骨(premaxilla)细长,

branchiopoda

鳃脚

鳃盖 gill cover | 鳃脚 Branchiopoda | 鳃裂 gill slit

Branchiostegidae

马头鱼科

\\"鳃盖条;鳃被架\\",\\"branchiostegal rays\\" | \\"马头鱼科\\",\\"BRANCHIOSTEGIDAE\\" | \\"鳃覆\\",\\"branchiostegite; branchiostegum\\"

Holocephali

全头亚纲

(二)全头亚纲(Holocephali) 体表光滑或偶有盾鳞. 鳃腔外被一膜质鳃盖,后缘具一总鳃孔. 背鳍2个,第一背鳍前有一强大硬棘,能自由竖立或垂倒. 雄性除腹鳍内侧的鳍脚外,尚有腹前鳍脚及额鳍脚. 全世界有1目3科近30种. 我国产5种,

opercle

蒴盖

operator gene 操纵基因 | opercle 蒴盖 | opercular gill 盖鳃

They use their hoods to scoop in water

它们用罩盖来筹集水

These are hooded nudibranchs.|它们是有罩盖的裸鳃亚目动物 | They use their hoods to scoop in water...|它们用罩盖来筹集水 | ...then slowly squeeze out all but the food.|然后把水挤出留下食物

cover glass;cover slip

盖玻片

盖,鳃盖,蒴盖 operculum | 盖玻片 cover glass;cover slip | 盖度; 覆盖度 degree of coverage

pelvic girdle

腰带

肩带(pectoral或shoulder girdle)的标准位置,靠近心脏;腰带(pelvic girdle)的标准位置,则靠近肛门. 软骨鱼类的鳃比较原始:鳃裂直接开口于体外,鳃隔(gill septum)发达. 硬骨鱼类的鳃裂,不直接开口于体表而在外侧另有鳃盖(operculum)保护,鳃隔已退化

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant