Abstract
The suction pressures exerted by the adhesive organs of Liparis montagui, L. liparis, Cyclopterus lumpus, Apletodon microcephalus, and Gobius paganellus were measured in still water, and those of Liparis montagui in water currents of different speeds. All species, except Gobius paganellus, were found to exert appreciable pressures in still water and Liparis montagui was shown to be able to vary this pressure according to the speed of the water flowing over it. All species, except Gobius paganellus, are able to resist displacement by water speeds up to 170 cm/sec. The differences in the adhesive powers of the five species are briefly discussed in relation to their ecology.
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