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Results for “caudal”

Ichthyological terms, not general ones.

Species 182Articles 5Glossary 37

  • caudal

    Towards the poterior or caudal fin.

    Used in 320 profiles

  • caudal-fin

    Also referred to as the tail fin, it's main purpose is thrust and propulsion.

    Used in 790 profiles

  • caudal filament

    Filamentous extensions of the caudal fin tips seen in some fishes.

  • caudal keel

    A fleshy, raised ridge extending along the caudal peduncle, most commonly the dorsal surface.

  • caudal peduncle

    The typically narrow section of the body located between the posterior of the dorsal and anal fins and caudal fin origin. Its depth is measured vertically at the narrowest point.

    Used in 394 profiles

  • caudal peduncle scale count

    Count often used in species descriptions and comparisons, made by counting the number of scales present around the narrowest part of the caudal peduncle.

  • principle caudal-fin rays

    Fin rays forming the dorsal or ventral margins of the caudal fin, supported by the supported by the hypural and parahypural.

    Used in 1 profile

  • precaudal

    In front of the caudal fin or posterior end of the body.

    Used in 13 profiles

  • laterocaudal

    Located or orientated on the side towards the rear.

  • epural

    Located on the dorsal side of the caudal fin; elongate bone which supports the caudal fin rays, positioned above the urostyle and posterior to the last neural spine.

    Used in 8 profiles

  • keel

    Ridgelike structure located on the ventral surface, caudal peduncle or caudal fin base in certain fishes.

    Used in 35 profiles

  • standard length

    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 because the caudal fin easily becomes damaged in preserved specimens. Abbreviated to SL.

    Used in 48 profiles

  • total length

    Straight line measurement of specimen's length taken from the tip of the snout to the tip of the longer lobe of the caudal fin, if applicable, and not taking the curve of the body into account. If the caudal lobes are of equal length they may be compressed along the midline before the measurement is taken. Abbreviated to TL.

    Used in 6 profiles

  • acuminate

    Tapering or pointed. Used to describe the shape of the caudal fin in some fishes.

    Used in 59 profiles

  • adipose crest

    Fatty ridge of flesh extending along the dorsal or ventral surface of the caudal peduncle in certain fishes, e.g., some Schistura spp.

    Used in 7 profiles

  • 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

  • crest

    Bony or fleshy ridge on the head or certain parts of the body, e.g., the caudal peduncle.

    Used in 40 profiles