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  2. Fish fin - Wikipedia

    en.wikipedia.org/wiki/Fish_fin

    The caudal fin is the tail fin (from the Latin cauda meaning tail), located at the end of the caudal peduncle. It is used for propulsion in most taxa (see also body-caudal fin locomotion). The tail fin is supported by the vertebrae of the axial skeleton and pterygiophores (radials). Depending on the relationship with the axial skeleton, four ...

  3. Fish anatomy - Wikipedia

    en.wikipedia.org/wiki/Fish_anatomy

    Caudal/Tail fins: Also called the tail fins, caudal fins are attached to the end of the caudal peduncle and used for propulsion. The caudal peduncle is the narrow part of the fish's body. The hypural joint is the joint between the caudal fin and the last of the vertebrae. The hypural is often fan-shaped.

  4. Glossary of ichthyology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_ichthyology

    Usually referred to as the caudal peduncle, the region of the body between the end of the anal fin and the base of the caudal fin. pelagic Living on or in the open seas. pelvic girdle The bones to which the ventral fins are attached. pelvic fins Paired fins behind or below the pectoral fins. pharyngeal bones

  5. Shark anatomy - Wikipedia

    en.wikipedia.org/wiki/Shark_anatomy

    The tail of a shark consists of the caudal peduncle and the caudal fin, which provide the main source of thrust for the shark. Most sharks have heterocercal caudal fins, meaning that the backbone extends into the (usually longer) upper lobe. The shape of the caudal fin reflects the shark's lifestyle, and can be broadly divided into five categories:

  6. Caudal - Wikipedia

    en.wikipedia.org/wiki/Caudal

    Caudal (anatomical term) (from Latin cauda; tail), used to describe how close something is to the trailing end of an organism; Caudal artery, the portion of the dorsal aorta of a vertebrate that passes into the tail; Caudal cell mass, the aggregate of undifferentiated cells at the caudal end on the spine; Caudal fin, the tail fin of a fish

  7. Fish locomotion - Wikipedia

    en.wikipedia.org/wiki/Fish_locomotion

    Most fish swim by generating undulatory waves that propagate down the body through the caudal fin. This form of undulatory locomotion is termed body-caudal fin (BCF) swimming on the basis of the body structures used; it includes anguilliform, sub-carangiform, carangiform, and thunniform locomotory modes, as well as the oscillatory ostraciiform ...

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  9. Moronidae - Wikipedia

    en.wikipedia.org/wiki/Moronidae

    The first dorsal fin has between 8 and 10 spines and the second has a single spine and between 10 and 13 soft rays. The anal fin has 3 spines and between 9 and 12 soft rays, [2] and has its origin far to the rear of the origin of the second dorsal fin. The caudal fin is forked and the caudal peduncle has a dense covering of scales. The head and ...