Mouths
Face
Body & Scales
Fins
100

Fish mouth that is located in the front of the head pointing forward.

What is a terminal mouth?

100

Uppermost part of a fish's jaw.

What is the upper jaw?

100

The base of the caudal fin.

What is the caudal peduncle?

100

Fin that allows for abrupt changes in side-to-side direction and speed.

What is the pectoral fin?

200

A fish with a shorter upper jaw and longer lower jaw.

What is a superior mouth?

200

Lowest part of a fish's jaw.

What is the lower jaw?

200

Scales around the lateral line of a fish.

What are lateral line scales?

200

Fin that helps with steering as well as balance.

What is the ventral fin?

300

Most common fish mouth type.

What is a terminal mouth type?

300

Holes that are normally in front of the eyes on a fish and used for smelling.

What is the nostrils?

300

The system that measures the relative movements between their body and the surrounding water in fish.

What are lateral lines?

300

A fin that was evolved to help spiny-rayed fish.

What is a spiny dorsal fin?

400

Fish mouth that generally means that the fish is a bottom feeder.

What is an inferior mouth?

400

Part of the fish's jaw that is most typically thought of with catfish.

What is the barbel?

400

The main types of scales found on fish.

What are Placoid, Cosmoid, Ganoid, Cycloid/Ctenoid scales?

400

A fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin.

What is a soft dorsal / adipose fin?

500

Fish with a structural arrangement of the jaws that enables it to extend or withdraw its mouth at will.

What is a protrusible mouth?

500

Protective layer before a fish's gills.

What is a bony gill cover?

500

The kind of fish that typically have cycloid and ctenoid scales.

What is most bony fish?
500

Thin, paired fins supported by dermal rays.

What is a fin ray?