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The pectoral fins contain 15-18 soft rays each ; the pelvic fins are thoracic and contain one spine and six soft rays ; the caudal fin is forked.
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pectoral and fins
In rays, the pectoral fins have connected to the head and are very flexible.
The pectoral fins are movable and used in maneuvering ; the dorsal fin is fixed and contributes stability, and the tail is used for propulsion, as well as maneuvering.
Swimming water animals such as fish and cetaceans actively use pectoral fins for maneuvering, and dorsal fins contribute stability as the animal swims, propelling and maneuvering with its tail, itself recognizable as a fin.
Catfish are responsible for over 4 % of Jamaican inhabitants ' deaths due to the deadly venom found on the tips of their dorsal and pectoral fins.
alt = Killer whale mother and calf extending their bodies above the water surface, from pectoral fins forward, with ice pack in background
Killer whale pectoral fins are large and rounded, resembling paddles.
Males have significantly larger pectoral fins than females.
It moves by combining pectoral, dorsal, anal, and caudal fins.
Because of this, they are slow-moving and rely on their pectoral, dorsal, anal, and caudal fins for propulsion rather than by body undulation.
alt = Photo of humpback whale with most of its body out of the water and its pectoral fins extended
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.
alt = Drawing of a shark labeling major anatomical features, including mouth, snout, nostril, eye, spiracle, dorsal fin spine, caudal keel, clasper, labial furrows, gill openings, precaudal pit and fins: first and second dorsal, anal, pectoral, caudal and pelvic
Coelacanths have 8 fins – 2 dorsal fins, 2 pectoral fins, 2 pelvic fins, 1 anal fin, and 1 caudal fin.
The larvae typically have protective spines on the head, over the gills, and in the pelvic and pectoral fins.
They have a pair of pectoral and pelvic fins.
The spiny first dorsal fin is normally folded back in a groove, as are its pectoral fins.
Common characteristics include the positioning of the pelvic fins ( if present ), below or in front of the pectoral fins.
They use their large pectoral fins to stabilize themselves on the floor of flowing creeks and rivers.
Their venomous spines are on both dorsal fins, the pectoral fins, pelvic fins, anal fins, and several on the gill cover.
pectoral and contain
Originally the pectoral and pelvic girdles, which do not contain any dermal elements, did not connect.
The pectoral flippers ( at the sides of the body ) are for steering ; they contain bones homologous to the forelimbs of land mammals.
The single dorsal fin originates behind the pectoral and pelvic fins and contains 1 – 3 weak spines and 9 – 18 soft rays ; the pectoral fins are elongate and tapered ( the superior rays being longer than the inferior rays ) and contain 12 – 16 soft rays.
Most pectoral crosses are made of precious metals ( platinum, gold or silver ) and some contain precious or semi-precious gems.
Throughout the centuries, many pectoral crosses have been made in the form of reliquaries which contain alleged fragments of the True Cross or relics of saints.
The pectoral fins are long, with 12-15 ( usually 13 ) rays ; the pelvic fins are small and contain 5 rays.
pectoral and soft
The pectoral muscles may be released along its inferior edge to allow a larger, more supple pocket for the expander at the expense of thinner lower pole soft tissue coverage.
* Compared to a tautog or cunner, its mouth is much larger, also the caudal fin, pectoral fin, and soft portion ( 11 rays ) of dorsal fin as long as spiny portion.
The dorsal and the anal fins have soft rays and are long based, while the pectoral and ventral fins are small.
The pelvic fins are forward of the pectoral fins, usually under the gills, and have one spine with several soft rays.
Filefish have soft, simple fins with comparatively small pectoral fins and truncated, fan-shaped tail fins ; a slender, retractable spine crowns the head.
The single dorsal and ventral fins have spines and soft rays ; the paired pectoral and pelvic fins have soft rays only ; and the caudal fin has soft rays and is truncate and rounded.
They use notched caudal fins, soft dorsal fins, body undulations, and pectoral fins to move forward.
The body is brown with up to 12 narrow dark brown crossbars, the caudal fin is dark brown, and the soft dorsal, anal and pectoral fins are pale.
The first ( spinous, with nine spines ) dorsal fin originates behind the pectoral fins, the former being confluent with, but noticeably higher than the much longer soft dorsal fin ( with 15 – 19 rays ), itself much longer than the anal fin ( which has three spines and 9 – 10 soft rays ).
All fins are spinous ( excluding the low-slung pectoral fins ) and rounded: there is a single dorsal fin with 3 – 8 spines and 10 – 19 soft rays ; the pelvic fins are thoracic with one spine and 6 – 7 soft rays ; the anal fin has 2 – 3 spines and 8 – 12 soft rays ; and even the forked caudal fin possesses 4 – 7 procurrent spines on each lobe.
The dorsal fin has 65-79 soft rays, the pectoral fin 10 to 11 and the ventral fin 6.
They generally have large, leaflike pectoral fins and lack scales, although some species are covered with soft spines.
Spoonhead sculpins have four soft pelvic rays ( soft-rays are thin and flexible ), 14-16 pectoral rays, one chin pore and three preopercular spines.
pectoral and rays
The dorsal fin will have 11 to 17 spines, often long and separated from each other, and the pectoral fins will be well-developed, with 11 to 25 rays.
** Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards.
*** The " horns " of manta rays and their relatives are called cephalic fins ; this is actually a modification of the anterior portion of the pectoral fin.
They are distinguished from the closely related subfamily Gobiinae by the absence of a swimbladder in adults and location of the uppermost rays of the pectoral fins within the fin membrane.
The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, comprising the order Torpediniformes.
Electric rays have a rounded pectoral disc with two moderately large rounded-angular ( not pointed or hooked ) dorsal fins ( reduced in some narkids ), and a stout, muscular tail with a well-developed caudal fin.
Their most distinguishing feature is their pectoral fins: they are composed of two distinct sections, the lower of which consists of between 3-7 long, thread-like independent rays.
" Similar species, such as the mullets ( family Mugilidae ) and milkfish ( family Chanidae ) can be easily distinguished from threadfins by their lack of filamentous pectoral rays.
Their pectoral rays are thought to serve as tactile structures, helping to find prey within the sediments.
Although the Flying Gurnard does not fly, it can " walk " on the bottom by alternatively moving its pelvic fins and short pectoral fin rays.
An angel shark is a shark in the genus Squatina, which are unusual in having flattened bodies and broad pectoral fins that give them a strong resemblance to rays.
The pectoral fins are large, with 10 rays.
The bluegill has three anal spines, ten to 12 anal fin rays, six to 13 dorsal fin spines, 11 to 12 dorsal rays, and 12 to 13 pectoral rays.
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