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There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. [citation needed] Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or ...
They do not have any thorn in the fins, but show elongated pelvic-fin rays reduced to bifid filaments, with 2 soft rays. The dorsal fin is a double and rounded (the first can have 9 or 11 soft rays, the second 56 or 65). The caudal fin is rounded, with 27 or 29 soft rays. Vertical fins distally reaching the origin of the anal fin.
Hydnum repandum, commonly known as the sweet tooth, pig's trotter, [7] wood hedgehog or hedgehog mushroom, is a basidiomycete fungus of the family Hydnaceae. First described by Carl Linnaeus in 1753, it is the type species of the genus Hydnum .
The pelvic fin has 4–9 rays, and the stomiiformes possess 5–24 branchiostegal rays. Their scales are cycloid , delicate and easily sloughed off; some are scaleless. The coloration is typically dark brown or black; a few (mostly Gonostomatoidei ) are silver, and photophores (light-producing organs) are common in this order.
The snout is semi-transparent. The first and second dorsal fins, as well as the caudal fin, are pale with blackish rear margins. The membrane of the pectoral fin is blackish. The pectoral filaments are white. The forward margins and origins of the pelvic and anal fins are white, while their other parts are a dusky yellowish white.
As the labor market cools, data suggests more workers are getting "dry promoted" and taking on more responsibilities or a new title for the same pay. More work, same salary. How employees should ...
The pelvic fins are much smaller than the pectoral fins, and the anal fin is absent. The tail is much longer than the body and ends in a large, crescent-shaped caudal fin; the lower caudal fin lobe is more than half the length of the upper. [3] [14] [17] The entire dorsal surface has a grainy texture from a dense covering of tiny dermal ...
When it comes to research, understanding the effects supplements have on human health is difficult, time-consuming and costly, said Dr. David Seres, director of medical nutrition at the Columbia ...