Note 50 — PROGRESSION ON AND IN THE WATER.
Reading edition
The air-bladder is wanting in the dermopteri, plagiostomi, and pleuronectidæ.—Owen, op. cit. p. 255.
Reading edition
The air-bladder is wanting in the dermopteri, plagiostomi, and pleuronectidæ.—Owen, op. cit. p. 255.