Straalvinnigen - Wikipedia
Fish - Actinopterygii, Ray-Finned, Aquatic | Britannica
Actinopterygii - New World Encyclopedia
Actinopterygii | fish taxon | Britannica
WEBThe Actinopterygii, or ray-finned fishes, are the largest class of fishes. In existence for about 400 million years, since the Early Devonian, it consists of some 42 orders containing more than 480 families, at least 80 of …
ADW: Actinopterygii: INFORMATION
WEBGeographic Range. Ray-finned fishes inhabit a variety of extreme environments. These include high altitude lakes and streams, desert springs (e.g. pupfishes ), subterranean caves (e.g. cavefishes ), …