八目鳗

可变淋巴细胞受体是富含亮氨酸重复序列（leucine-richrepeat，LRR）蛋白，调控无颌类脊椎动物（八目鳗和七鳃鳗）的获得性免疫。

VLRs are leucine-rich repeat ( LRR ) proteins that mediate adaptive immunity in jawless vertebrates ( hagfish and lamprey ) .

形似鳗鱼的海洋鱼类。与八目鳗类鱼区别开的七鳃鳗。

Eel-like marine fishes . lampreys as distinguished from hagfishes .

太平洋的八目鳗类鱼自卫的方式有点让人作呕。

The Pacific Ocean Hagfish has a disgusting way of defending itself .

原始的无颚脊椎动物；七鳃鳗；八目鳗类鱼。现已灭绝的无颚有甲鱼类或鱼状脊椎动物；其分类尚不明确。

Extinct group of armored jawless fishes or fishlike vertebrate ; taxonomy is not clear .

与八目鳗类鱼区别开的七鳃鳗。

Lampreys as distinguished from hagfishes .

由初生的八目鳗到人类等所有脊椎动物身上都可以发现视紫质这种视觉色素

Rhodopsin was found to be the visual pigment in all vertebrates from the primitive lamprey to man

他们发现毒蕈碱能刺激神经兴奋，并引起八目鳗运动。

Their work determined that muscarine stimulated neural activity , leading to locomotion in the laboratory lampreys .

鳗鲡状的脊索动物超类，没有咽喉和骨盆鳍；七鳃鳗；八目鳗类鱼；一些已灭绝的种类。

Superclass of eel-shaped chordates lacking jaws and pelvic fins : lampreys ; hagfishes ; some extinct forms .

不幸的是，有时候，八目鳗类鱼会成为自己防卫机制的受害者。但通常情况下，它会把自己拧成几节，然后从粘液中逃脱。

The hagfish , unfortunately , sometimes falls prey to its own defense mechanism , but normally it twists itself into knots to escape the gelatinous goop .