Singh B R, Mishra A P, Prasad M S, Singh I
Department of Zoology, Bihar University, Muzaffarpur, India.
Gegenbaurs Morphol Jahrb. 1989;135(3):529-40.
The rudiment of the neo-morphic organ for O2 uptake arises in the form of a gill mass formed by the gill material of the embryonic 5th gill arch. Ectodermal induction to the gill mass takes place in the post-embryonic stage of development to produce a respiratory epithelium of the neo-morphic air breathing organ. The respiratory epithelium of the opercular chamber and the buccal cavity is formed by the cells of the gill mass alone. The respiratory epithelium of the suprabranchial chamber is formed by the cells of the gill mass as well as the gill lamellae derived from the dorsal aspects of the functional gill arches (1 to 4). Extension of the suprabranchial chamber into the buccal region anteriorly is a device to increase the respiratory surface area available for O2 uptake by air. The epithelial position of the blood capillaries in the suprabranchial chamber of Periophthalmodon schlosseri signifies terrestrial nature of the fish.
用于摄取氧气的新形态器官的雏形以鳃团的形式出现，鳃团由胚胎第5鳃弓的鳃组织形成。在胚胎后发育阶段，鳃团受到外胚层诱导，以产生新形态空气呼吸器官的呼吸上皮。鳃盖腔和口腔的呼吸上皮仅由鳃团的细胞形成。鳃上腔的呼吸上皮由鳃团的细胞以及源自功能性鳃弓（1至4）背侧的鳃小片形成。鳃上腔向前延伸至口腔区域是一种增加可用于通过空气摄取氧气的呼吸表面积的装置。Schlosseri弹涂鱼鳃上腔中毛细血管的上皮位置表明了这种鱼的陆生特性。
