Pelvic fin information

Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the...

lost during evolution (e.g. pelvic fins in †Bobasatrania, caudal fin in ocean sunfish). In some clades, additional unpaired fins were acquired during evolution...

arresting purple pelvic fin. "The researchers found that males clearly preferred females with a larger pelvic fin and that pelvic fins grew in a more disproportionate...

(sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis or pelvic skeleton). The pelvic region of the trunk...

The hip bone (os coxae, innominate bone, pelvic bone or coxal bone) is a large flat bone, constricted in the center and expanded above and below. In some...

Tiktaalik: the ulna is significantly longer than the ulnare. The pelvic girdle (hip) and pelvic fins of Panderichthys represents an intermediate in the fish-tetrapod...

ray-finned fish. Its shape is ribbon-like, narrow laterally, with a dorsal fin along its entire length, stubby pectoral fins, and long, oar-shaped pelvic...

opah's single dorsal fin (with about 50–55 rays) is greatly elongated, also in a falcated profile similar to the pelvic fins. The anal fin (around 34 to 41...

maneuverability Flatfish have developed partially symmetric dorsal and pelvic fins The four-eyed fish Anableps anableps can see both below and above the...

A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals...

fish can variously "walk" (i.e., crawl over land using the pectoral and pelvic fins), burrow in mud, leap out of the water and even glide temporarily through...

an ancient lineage of ray-finned fishes (Polypteridae) with implications for the evolution of body elongation, pelvic fin loss, and craniofacial morphology...

misinterpret them, he believed that the spines belonged to pectoral and pelvic fins of a new species of shark. The first associated skeletal remains, from...

latter quarter of the pelvic fin bases. Behind the pelvic fins, the body rapidly tapers to the short caudal peduncle. The anal fin originates behind the...

Stethacanthidae, Stethacanthus had unique pelvic girdles, single-crowned and non-growing scales, a pectoral fin composed of metapterygium with an accompanying...

species, and help distinguish the different elasmobranch clades. The pelvic fins in males are modified to create claspers for the transfer of sperm. There...

both pectoral and pelvic fins. Until recently these ancestors, known as antiarchs, were thought to have lacked pectoral or pelvic fins. In addition to this...

cartilaginous fish have claspers formed from the posterior portion of their pelvic fin which serve to channel semen into the female's cloaca during mating. The...

Ichthyostega being somewhat derived from, and homologous with the pectoral and pelvic fin bones of earlier fishes). This could indicate that vertebrates evolved...

pair of large pectoral fins behind the gills and low pelvic fins further back along the underside. Cladoselache has two dorsal fins, with the first being...

There is a single spine in the pelvic fin and between 2 and 5 soft rays, again typically 5, while the large pectoral fin contains 11-25 soft rays and sometimes...

discredited belief that the fish "row" themselves through the water with their pelvic fins. The family name Regalecidae is derived from the Latin regalis, meaning...

Pelvic spine present; Pelvic fin bone support anatomy; Ligament anatomy associated with upper jaw protrusion; and Two distinct regions of dorsal fin:...

larger than the pectoral or pelvic fins, and originates over the end of the pelvic fin bases. There is no anal fin. The caudal fin is low, with a moderate...

with fleshy, paired pectoral and pelvic fins and a single unpaired caudal fin replacing the dorsal, caudal and anal fins of most fishes. Lungfish have a...

is a ray-finned fish of the northern Pacific Ocean; although a perciform, its skeleton is mostly cartilage, and the larvae have pelvic fins that disappear...

modified pelvic fins. To propel itself forward via punting, a skate first anchors its pelvic fin into the seafloor and then pushes the fin toward its...