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Results for “margin”

Ichthyological terms, not general ones.

Species 58Articles 6Glossary 32

  • margin

    Edge or rim.

    Used in 265 profiles

  • marginal

    Of, relating to, or locate on the edge or margin of something; a semi-aquatic plant growing near the margin of a water body.

    Used in 276 profiles

  • anterior margin

    Used to refer to the margin of a fin from its origin to its apex.

    Used in 22 profiles

  • terminal margin

    In the fins of fishes, the space between the subterminal margin and fin tip.

  • emarginate

    Having a notched margin or edge. Often used in reference to a caudal fin with a slightly concave shape.

    Used in 101 profiles

  • submarginal

    Situated close to the margin of something.

    Used in 64 profiles

  • bar

    Used in ichthyology to describe a vertical or diagonal marking, normally with well-defined margins, often located on the flank of a fish.

    Used in 399 profiles

  • body depth

    The vertical distance between the dorsal and ventral margins of the body measured at the base of the pectoral fin where it joins the body. In most icthyological works the greatest dimension, normally anterior to the dorsal fin, is taken but in some cases body depth is measured at the origin of pectoral, pelvic and first anal. Fins or fin bases are not included in the measurement, however.

    Used in 85 profiles

  • cardioid scale

    A scale possessing a distinct notch on the posterior margin.

  • cleithrum

    Major bone of the pectoral girdle. Extends upward from the pectoral fin base and forms the rear margin of the branchial cavity. Articulates with the supracleithrum dorsally, the scapula and coracoid ventrally. Also known as proscapulum.

    Used in 4 profiles

  • contact organ

    Dermal, bony growth or spicule normally protruding from one or more fin rays or scale margins. Present on parts of the body or fins that come into contact with the female during spawning in males of some fishes.

    Used in 9 profiles

  • crenate

    Having a margin or edge consisting of shallow, rounded or scalloped projections. Similar to crenulate.

  • crenulate

    Having a finely crenate edge or margin.

  • ctenoid

    Comblike; having an edge or margin with multiple, tiny projections resembling the teeth of a comb.

    Used in 13 profiles

  • cycloid scale

    Scale type having a smooth margin.

    Used in 27 profiles

  • dentate

    Possessing a serrated or tooth-like edge or margin.

  • epaxial lobe

    Section of the caudal fin located between the base and dorsal margin.

  • eye diameter

    In ichthyology, the greatest distance between the margins of the eye.

    Used in 38 profiles

  • lacrimal groove

    Small groove located on the lower margin of the snout, just above the upper lip, in some fishes. Formed by a fold of skin under the edge of the lacrimal bone.