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Results for “caudal”

Ichthyological terms, not general ones.

Species 182Articles 5Glossary 37

  • emarginate

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

    Used in 101 profiles

  • epaxial lobe

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

  • fork length

    Length of a fish specimen measured from the tip of the snout to the end of the medial caudal fin rays, i.e., the deepest point of the 'fork' formed by the fin. Tends not to be used in systematics.

  • forked

    Divided or separated into two branches; shaped like a fork. Used to describe the shape of the caudal fin in some fishes.

    Used in 106 profiles

  • hypural

    Of, relating to, forming or being one of the partially-fused hemal spines that support the caudal fin rays in most teleosts.

    Used in 19 profiles

  • hypural bones

    Series of bones to which the caudal fin rays are attached.

  • lanceolate

    Lance or spear-shaped; gradually tapering to a point. Used to describe the shape of a caudal fin with long central rays.

    Used in 19 profiles

  • lateral scale rows

    The number of more-or-less vertically-arranged scale rows present between the upper end of the gill opening and the caudal fin base. Sometimes referred to as vertical scale rows and used in meristic counts when the lateral line is absent, incompletely pored or otherwise difficult to distinguish.

    Used in 9 profiles

  • lunate

    Crescent-shaped. Sometimes used to describe a caudal fin with a deeply emarginate shape.

    Used in 8 profiles

  • oxycercal

    Used in reference to a caudal fin with a tapering shape.

  • postdorsal length

    The distance between the dorsal fin insertion/origin and caudal fin base.

    Used in 2 profiles

  • truncate

    Having a blunt, square, or even end; ending abruptly as if cut off across the base or tip. Often used in reference to caudal fin shape.

    Used in 103 profiles

  • unpaired fins

    The dorsal, caudal, anal and, if present, adipose fins.

    Used in 61 profiles

  • ventral keel

    Fleshy, longitudinal ridge running along the abdomen and caudal peduncle in some fishes.

    Used in 13 profiles

  • vertebral column

    The backbone; the spine; in fishes, the vertebrae running from skull to caudal fin which protect the spinal cord and haemal artery as well as providing attachment for certain muscles used for swimming.

  • vertical fin

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

    Used in 1 profile