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The body is covered by large, circular scales, the ones on the cheeks and the top of the head and a single scale just above the pectoral fin being the largest. The male is generally larger and more deep-bodied than the female, with larger dorsal, pelvic and anal fins. [4] The color of the sheepshead minnow is olive green above and yellowish below.
In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. 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]
The dorsal fin has 10 spines and 14-15 soft rays while the anal fin contains 3 spines and 8 soft rays. [2] The long perctoral fin extends as far as the anus and contains16-17 rays. [ 7 ] This fish attains a maximum total length of 128 cm (50 in), although 60 cm (24 in) is more typical, and the maximum published weight is 28.6 kg (63 lb). [ 2 ]
A small fin, positioned behind the dorsal or anal fins, that is supported by a ray or rays. fluviatile Living in rivers. free rear tips (of fins) The posterior tip of the fin that is closest to the most posterior point of the fin base. frontal ridge A ridge running along the top of the head along the midline. furcate Forked. fusiform
The anal fin has 3 spines and 11 or 12 soft rays, the base of the anal fin is roughly equal in length to the second dorsal-fin base. The pectoral fin has 15 or 16 rays, and this fin has a length which is equal to 20 to 23% of the standard length , and its tip does not reach the tip of pelvic fin ; almost all the rays of the pectoral fin are ...
Anal/cloacal fin The anal/cloacal fin is located on the ventral surface behind the anus/cloaca. The bones that support the anal fin are called pterygiophores. There are up to two series, a proximal series (axonosts) and a distal series (baseosts) Most fish use their anal fin to stabilize while swimming
Fish in the order Gymnotiformes possess electric organs along the length of their bodies and swim by undulating an elongated anal fin while keeping the body still, presumably so as not to disturb the electric field that they generate. Many fish swim using combined behavior of their two pectoral fins or both their anal and dorsal fins.
The dorsal fin is supported by 10 spines, while the anal fin contains 3 spines and 7 soft rays. [2] It has long pectoral fins that extend nearly as far as to a point level with the origin of anal fin and the pelvic fins are relatively long, reaching past the anus. The caudal fin is forked with a scythe shaped upper lobe which extends into a ...