Results for “median”

anal-fin

A median, unpaired, ventral fin located between the anus and caudal fin, usually in the posterior portion of the body. Used to maintain equilibrium and stability.

Used in 764 profiles

basibranchial

Of, being, or relating to a median ventral cartilage or bony element located at the ventral point of a branchial arch, behind the tongue if the latter is present.

basibranchial teeth

Teeth on the median ventral plate (base of the tongue) overlying the basibranchial bones between the gill arches in some fishes.

Cyclops

Genus of freshwater copepods characterised and so named by possession of a single, large, median eye. Sometimes cultured as food for fry or very small fishes.

Used in 8 profiles

dorsal-fin

Median, rayed, unpaired fin located on the dorsal surface (back) of most fishes. Its main purpose is to prevent the animal rolling and enable it to turn sharply. Some species possess more than one dorsal fin, in which case the anterior one is referred to as the first.

Used in 860 profiles

medial

Relating to, situated on or in, or extending towards the middle; median. Opposite of lateral.

Used in 183 profiles

occipital bone

Median bone on the back of the head

pterygiophore

Bony or cartilaginous structures via which the rays of the median fins articulate and connect to the body.

Used in 31 profiles

rostral spine

Median dorsal structure located on the snout in certain fishes.

supraoccipital

Of, relating to, or being the supraoccipital bone, a median bone in the upper rear part of the skull.

Used in 34 profiles

vertical fin

Unpaired, median fin, i.e., dorsal, caudal, adipose and anal fins.

Used in 1 profile