(Downloading may take up to 30 seconds. If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.
Fig. 1. Scanning electron micrographs (SEM) of the gills from three different sizes
of the obligate air-breathing teleost Arapaima gigas: (A) 10 g, (B)
100 g and (C) 1 kg body mass. Scale bars, 500 µm.