圆口类在鳃裂中间扩张而成为鳃囊，其中生出许多鳃叶而形成鳃。鳃囊的数目一般为6—8对，多者达10—14对
... branchial lamella 鳃小叶 branchial pouch 鳃囊 branchial respiration 鳃呼吸 ...
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鳃囊肿 [动] branchial cyst ; gill cyst
鳃囊草 gillyweed
海囊鳃鳗 Saccopharynx thalassa
囊鳃鳗目 Saccopharyngiformes ; Saccopharyngidae
少椎囊鳃鳗 Saccopharynx paucovertebratis
三叶囊鳃鳗 Saccopharynx trilobatus
鳃裂囊肿 [口腔] branchial cleft cyst ; branchial cyst ; branchiogenic cyst ; cyst branchial
鳃裂囊肿和瘘管 branchialcystandfistula
囊鳃类 Marsipobranchii
其结果表明：日本七鳃鳗的腮囊有七对，囊壁向内折叠形成腮叶及次级腮叶。
The results indicate that there are seven pairs of gill pouches in Lampetra japonica (Martens). The wall of gill pouch folding inward forms gill-lobes and secondary gill lobe.
本文对五条日本七鳃鳗腮囊的形态结构进行了比较详细的观察。
The forms and structures of gill pouch in five Lampetra japonicas were observed in detail.
病鱼的皮肤、鳞囊、鳍、鳃、肾、肝、脾和肠都显出不同程度的病理变化，尤其是肾、鳃和皮肤更严重。
The derma scale follicle fin gill kidney liver spleen and intestine of diseased fish revealed to a greater or lesser degree pathological changes especially in the kidney derma and gill.
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