Seriously Fish
AdminAccount
AdminAccount

Results for “pectoral-fin

Ichthyological terms, not general ones.

  • pectoral-fin

    Anterior, paired fin attached to the pectoral girdle of fishes, usually just behind the opercle and corresponding to the forelimbs of higher vertebrates. Assists in controlling direction of movement and swimming speed. Frequently abbreviated to 'P' or 'P1' in scientific papers.

    Used in 508 profiles

  • paired fins

    The pectoral and pelvic/ventral fins, both of which occur in pairs and are analogous to the fore and hind limbs in higher animals.

    Used in 58 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

  • humeral spot

    A marking on the body in the area analogous to the humerus, or shoulder. In fishes it's normally located above the pectoral-fin and behind the opercle. There may be more than a single such spot in some species.

    Used in 42 profiles

  • lamina circularis

    Bony process or plate at the base of the first ( unbranched ) and second ( first branched ) ray of the pectoral-fin in most male specimens of the family Cobitidae. It is also known as 'Canestrini's scale'.

    Used in 24 profiles

  • jugular

    Of or relating to the neck or throat. Sometimes used in reference to a fish possessing pelvic fins located in front of the pectoral fins.

  • 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

  • humeral process

    Bony process extending posteriorly from the pectoral girdle, above the base of the pectoral fin. Present only in certain fishes.

    Used in 8 profiles

  • axil

    The upper angle between a fin and the body of a fish, most often used in reference to the pectoral fin.

  • pectoral

    Of, relating to or located on the chest, breast, or thorax; used to refer to a single pectoral fin in relation to fishes.

    Used in 263 profiles

  • cleithral spot

    Variably-sized (depending on species), usually dark marking present in the cleithral area dorsal to the pectoral fin insertion. Normally visible externally in llive specimens.

    Used in 17 profiles

  • coracoid

    Paired endochondral bone located at the base of the pectoral fin upon which rest the pterygials or actinosts. Attaches to the cleithrum anteriorly.

    Used in 18 profiles

  • scapula

    Paired bone attached to the pterygials, actinosts or radials of the pectoral fin. Articulates ventrally with the coracoid and anteriorly with the cleithrum.

  • axillary process

    A modified, often elongate, scale or group of scales located at the base of the pectoral or ventral fins in some fishes.

  • pelvic girdle

    Bony or cartilaginous structure supporting the pelvic fins. Sometimes fused with the pectoral girdle.

    Used in 9 profiles

  • pectoral girdle

    Bony or cartilaginous structure supporting the forelimbs or anterior fins in vertebrates.

    Used in 26 profiles