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In many fish, the pectoral fins aid in walking, especially in the lobe-like fins of some anglerfish and in the mudskipper (see also walking fish) Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards; In skates and rays, the pectoral fins are used for propulsion (rajiform ...
A peculiar function of pectoral fins, highly developed in some fish, is the creation of the dynamic lifting force that assists some fish such as sharks in maintaining depth and also enables the "flight" for flying fish. Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards.
The cleithral spine is short and is located over the pectoral fin and extends just to the first quarter of the pectoral fin. [8] The lower three rays of the pectoral fins have developed into separate, finger-like processes that are packed with sensory organs with which the gurnard seems to "walk" while detecting prey in the sediment.
Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages.
The flattened head and body of various fishes such as stingrays, which also commonly includes the pectoral and ventral fins. distal Remote from the point of attachment. dorsal Pertaining to the back. dorsum The upper (dorsal) surface of the head or body. dorsal fin The fin on a fish's back. dorsal fin origin The most anterior point of the ...
In total, the lined seahorse has eleven trunk rings, 34–39 tail rings, 16–20 dorsal fin rays, and 14–18 pectoral fin rays. The pectoral fin is level with the eye on each back side of the lined seahorse's head. The dorsal fin is located on the back of the skeleton and is level with the stomach–chest area. Female dorsal fins are slightly ...
There are two separate dorsal fins, the first has 10 spines and the second has 12 soft rays. The anal fin contains 10 soft rays. The pectoral fin has a rounded posterior margin and has 13-14 rays within its membrane, and the fin extends almost as far as the rear of the base of the anal fin. There are 3 enlarged rays at the bottom of fin which ...
Batoids are a superorder of cartilaginous fish consisting of skates, rays and other fish all characterized by dorsoventrally flattened bodies and large pectoral fins fused to the head. This distinctive morphology has resulted in several unique forms of locomotion. Most Batoids exhibit median paired fin swimming, utilizing their enlarged ...