Seriously Fish
AdminAccount
AdminAccount

Results for “fin”

Ichthyological terms, not general ones.

Species 418Articles 23Glossary 132

  • axillary process

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

  • base

    The bottom or lowest part of something. Biology. The point of attachment of a part or organ, e.g., a fin. Chemistry. A substance that can accept protons or donate pairs of electrons. The chemical opposite of an acid. Bases have a pH greater than 7.0 and a solution containing one or more bases is often referred to as an alkali.

    Used in 1,187 profiles

  • basipterygium

    Basal bone or cartilage located at the base of the paired fins in some fishes.

    Used in 2 profiles

  • branched rays

    A soft or segmented fin ray which is distally forked/divided into two.

    Used in 51 profiles

  • breeding tubercle

    Raised, epidermal structures developing on the head, body or fin rays during the spawning season in some fishes. Usually occur only in males, and sometimes referred to as 'nuptial tubercules'.

  • caudal

    Towards the poterior or caudal fin.

    Used in 320 profiles

  • caudal filament

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

  • 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

  • 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

  • columnaris

    Disease symptom resulting from infection by the bacterium Flavobacterium columnare which is ubiquitous in freshwater environments. Often mistaken for a fungal infection due to its appearance and is referred to variously as mouth rot, mouth fungus, fin rot, gill fungus, body fungus, saddleback columnaris, and cotton wool disease. Highly contagious and usually fatal unless treated with antibiotics or other.

    Used in 1 profile

  • 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

  • costiasis

    Disease of freshwater fishes caused by species of parasitic flagellate protozoa from the genus Ichthyobodo and more accurately referred to as ichthyobodiosis. It attacks the gills, fins and skin with symptoms including an increase body mucus secretion giving rise to the vernacular term 'skin slime disease'. Can be treated using proprietary products but frequently fatal otherwise.

  • crenulate

    Having a finely crenate edge or margin.

  • 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.

  • erectile

    Capable of being erected, raised, or elevated, e.g. an erectile fin spine.

    Used in 2 profiles

  • fanning

    Process of moving water over eggs or fry via rapid movement of the fins, thus aerating or removing solid particles from them.

    Used in 42 profiles

  • 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