Consuming both plants and animals.

See ontogeny.

The origin and development of an individual from embryo to adult.

Cell from which an egg or ovum develops.

Genus of parasitic dinoflagellates occurring in marine and freshwater fishes and sometimes referred to as Piscinoodinium or ‘velvet disease’.

Feeding on eggs either inside or outside the mother's body

Bone forming the upper, posterior portion of the operculum, sometimes bearing spines or spine-like structures. Normally the largest of the bones comprising the operculum.

Of or related to the operculum.

See gill opening.

Flap composed of 4 bones that covers, supports and protects the gill opening in many fishes. Also known as gill flap or gill cover.

Of or relating to the mouth.

See mouth brooder.

Circular or spherical in shape.

Either of two dermal, bony structures in the skull, each of which houses an eye; eye socket.

Of or relating to the an orbit.

Of, relating to, or derived from living organisms.

An individual life form that can react to stimuli, reproduce, grow, and maintain homeostasis. There are five main groups, or kingdoms: prokaryotes, protists, fungi, plants, and animals.

The description of a nominal taxon when it is established.

Prefix meaning straight, upright, or vertical.

Active regulation of osmotic pressure, especially in the body of a living organism or cell, in order to prevent the body fluids from becoming too diluted or concentrated.