See specific epithet.

Individual organism regarded as typical of the group or class to which it belongs; the whole or part of such an organism collected and preserved for scientific purposes.

Containing a high number of species. Normally applied to a taxonomic group or specified geographical area.

Covered in small marks of colour.

Wedge-shaped; a bone at the base of the skull; of or relating to the sphenoid bone.

See fin spine; also a hard, pointed, protective outgrowth or process elsewhere on the body, e.g., a preopercular spine; the spinal column of a vertebrate.

A small spine.

Shaped like a spine.

Possessing or resembling a spine.

An external respiratory opening, located between the eye and gill opening in certain, usually primitive, fishes.

A basic air-powered filter which draws water through a sponge before returning it to the aquarium. Typically used in small aquaria where gentle water flow is required, or when raising fry.

In biology, to result in or undergo a mutation; an individual having undergone this process.

Fish targeted by recreational anglers.

In fishes, a small, usually roundish marking that differs in colouration or texture compared with the surrounding surface.

Abbreviation used when two or more  species are being referred to.

In fishes, normally refers to a a stiff sharp spine or bony outgrowth.

The arrangement of scales on the body; the condition of possessing scales; scaled; scalation.

Measurement taken from the tip of the snout to the midlateral, posterior edge of the hypural plate or posterior edge of the last vertebra, thus excluding the caudal fin. May also exclude the length of the lower jaw should it project beyond the snout. It is the standard scientific measurement used for most fish species […]

Water not actively-moving; stagnant; still.

Star-shaped; arranged in a radiating form resembling that of a star.