to give one instance-there are fish with gills or branchiae that breathe the air dissolved in the water, at the same time that they breathe free air in their swim-bladders, this latter organ being divided by highly vascular partitions and having a ductus pneumaticus for the supply of air.
Esate baterako, badira zakatz edo brankiadun arrainak uretan disolbaturiko airea arnasten dutenak, aldi berean beren igeri-maskurian aire librea arnasten dutelarik, organo hau pareta oso baskularretan banaturikoa delako eta airez hornitzeko konduktu pneumatiko bat daukalako airez hornitzeko.