Species Worldwide: 207-250 (22-26 genera depending on
who asked!)
Species In Hawaii: 10
Endemic species in Hawaii: xxx
The cardinalfish
are recognized by the fact that they have two dorsal fins. These fishes
are generally small (less than 12 cm). They have a relatively large mouth,
which serves an important purpose in reproduction. This is because many
of the cardinal fish species are mouth brooders. It is usually the male
that keeps the fertilized eggs and sometimes the young even the hatch
in his mouth.