Note 26 — Chapter XIV · THE GEOGRAPHICAL DISTRIBUTION OF FISHES
Reading edition
The dragonets (Callionymus) are shore fishes of the shallowest waters in Europe and Asia, but inhabit considerable depths in tropical America. The sea-robins (Prionotus) are shore fishes in Massachusetts, semi-bathybial fishes at Panama. Often Arctic shore fishes become semi-bathybial in the Temperate Zone, living in water of a given temperature. A long period of cold weather will sometimes bring such to the surface.