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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 ...
The dorsal fin has fewer or equal (rarely one more) rays than the anal fin; the dorsal fin is low, with the anterior rays the longest, the pectoral fins are strikingly long, reaching to or almost to caudal fin base; pelvic fins are long, reaching beyond the anal fin origin, and their insertion is closer to the anal fin origin than to the ...
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 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 ...
The anal fin has 3 spines and 14–19 soft rays. The pectoral fins have 16–18 rays, and there are 4 pectoral filaments. The upper sides of the head and body have a slight darkish silver tinge, lighting in the lower flanks. Both dorsal fins show a blackish anterior margin, with the remaining parts of the fins translucent and slightly dusky.
There is a scattering of dark spots on the anal, dorsal and caudal fins. The head is marked with 3 dark brown bars, one of which is a diagonal bar running through the eye which ends in a large spot on the lower operculum. The long tentacles over each eye are banded and in larger adults there are bluish-black blotches close the pectoral fin ...
The pectoral fin is situated far below the midline of body. There are 5 pectoral filaments, the first being the shortest and this filament just reaches to or extends beyond the start of the anal fin. The remaining pectoral filaments reach well past the ends of lobes of the caudal fins with the third filament being the longest being 2.5-3 times ...
Ipnopidae is a species of fish that have adapted to living in the deep. Their skeleton is flatter with reinforced bony heads on its fin rays and its pelvic fins are located through the tips of the pectoral fin rays. [2] [3] [4] [5]