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Bony Fish

Cartilagenous Fish

N/A

Bony Fish

Cartilagenous Fish

Lower jaw can be hyperextended

Bony Fish

Cartilagenous Fish

Bony Fish

Cartilagenous Fish

Reproduce in smaller numbers

Reproduce in larger numbers

External development, most have no parental care

Shorter time to reach sexual maturity

Longer time to reach sexual maturity

Bony Fish

Cartilagenous Fish

N/A

30% external development from leathery eggs

Nictitating membrane (eyelid)

Nest builders

Pouch brooders

Mouth brooders

Young are called fry

Young are called pups

70% live born

Bony Fish

Cartilagenous Fish

Bony Fish

Cartilagenous Fish

Bony Fish

N/A

Cartilagenous Fish

Bony Fish

CartilagenousFish

Cycloid

Ctenoid

Ampullae of Lorenzini - picks up electrical signals

External fertilization

Internal fertilization - Male sharks have claspers

Ganoid

Fingernail-like ctenoid, cycloid, and ganoid scales

Sandpaper-like placoid scales

Smaller in size than sharks

Potential to be pretty large

Bony Fish

Cartilagenous Fish

Bony Fish

Cartilagenous Fish

Bony Fish

Cartilagenous Fish

More variation than cartilagenous fish

Mouth below snout in most

Homocercal caudal fin

Bony Fish

Cartilagenous Fish

Anal fin present

Most lack an anal fin

Heterocercal caudal fin

Rounded

Lunate

Forked

Slower-moving

Single row of non-replaceable teeth

Multiple rows of replaceable teeth

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