Cyprinidae
- Leuciscus
A genus of fish including: dace, chub.
- Carassius
Goldfish.
- Cyprinus
Type genus of the family Cyprinidae: carp.
- Abramis
European fishes.
- Tinca
Tench.
- Notropis
Shiners.
- Rutilus
Roaches.
- Scardinius
Rudds.
- Phoxinus
Minnows.
- Gobio
True gudgeons.
- Notemigonus
Golden shiners.
Cyprinodontidae
- Fundulus
Killifish.
- genus Rivulus
Killifish.
- Jordanella
Flagfishes.
- Xyphophorus
Swordtails.
- Lebistes
Guppies.
Catostomidae
- Ictiobus
Buffalo fishes.
- Maxostoma
A genus of fish in the family Catostomidae.
- Catostomus
Type genus of the family Catostomidae.
- Hypentelium
A genus of fish in the family Catostomidae.
Poeciliidae
- Gambusia
Mosquitofish.
- Platypoecilus
Platys.
- Mollienesia
Mollies.
Anomalopidae
- genus Anomalops
Type genus of the family Anomalopidae.
- Krypterophaneron
A genus of fish in the family Anomalopidae.
- Photoblepharon
A genus of fish in the family Anomalopidae.
Myxinidae
- Myxine
Type genus of the Myxinidae (typical hagfishes).
- genus Eptatretus
A genus of fossil fish of the family Myxinidae.
- Myxinikela
Fossil hagfishes.
Syngnathidae
- Syngnathus
Type genus of the family Syngnathidae.
- Cosmocampus
A genus of fish in the family Syngnathidae.
- Hippocampus
Seahorses.
Lamnidae
- Lamna
A genus of Lamnidae.
- Carcharodon
Man-eating sharks.
- Cetorhinus
Comprising only the basking sharks; in some classifications considered the type genus...
Caproidae
Orectolobidae
- Orectolobus
Carpet sharks.
- Ginglymostoma
Nurse sharks.
Also contains
- Holocentrus
Type genus of the family Holocentridae; squirrelfishes.
- Gasterosteus
Type genus of the family Gasterosteidae.
- Zeus
Type genus of the family Zeidae.
- Petromyzon
Typical lampreys.
- Fistularia
Type genus of the family Fistulariidae.
- genus Chimaera
Type genus of the Chimaeridae.
- Aulostomus
Type genus of the Aulostomidae.
- Hexanchus
A genus of Hexanchidae.
- Isurus
Mako sharks.
- Alopius
Type genus of the family Alopiidae; in some classifications considered a genus of the family...
- Electrophorus
Type genus of the family Electrophoridae; electric eels.