The dorsal fin originates from above the (relatively large) eyes and runs the entire length of the fish. Of the approximately 400 dorsal fin rays, the first 10 to 13 are elongated to varying degrees, forming a trailing crest embellished with reddish spots and flaps of skin at the ray tips.

Feb 6, 2025 · The oarfish swims by undulating its long dorsal fin while its body remains straight which is knows as an amiiform mode of swimming. It has also been observed swimming in a vertical position in what is believed to be a method that the oarfish searches for prey items.

The giant oarfish (Regalecus glesne) is a species of oarfish of the family Regalecidae. It is an oceanodromous species with a worldwide distribution, excluding polar regions. Other common names include Pacific oarfish, king of herrings, ribbonfish, and streamer fish. R. glesne is the world's longest ray-finned fish.

Nov 20, 2021 · The dorsal fin begins above the animal’s extremely large eyes and runs the entire length of the fish. Of their estimated 400 dorsal fin rays, the first 10 to 13 are elongated, forming a pronounced crown-like crest.

Description of the Oarfish. This species has an extremely elongated body, a crest on its head, a dorsal fin down the length of its back, and long, narrow pelvic fins. All of its fins have red coloration. Its body has iridescent silver coloration, and is scaleless.

The fin rays close to its large head are lengthened to form a distinctive bright red crest, which is thought to have evolved as a defense mechanism to scare off predators. Their long dorsal fins have the ability to propel rapidly and help them descend vertically under the water.

May 27, 2024 · Unlike most fish, oarfish don’t have anal fins; instead, they have a long dorsal fin, which runs down their entire body. Their pectoral fins are located on the lower part of their bodies. An interesting fact about the oarfish is that their mouths are capable of extending or protruding.

Feb 24, 2025 · In the crushing depths of the ocean, where sunlight fades and life takes on bizarre forms, lives the oarfish, Regalecus glesne. This extraordinary creature, the longest bony fish on Earth, can grow to a staggering 36 feet. Its rare appearances near the surface, or on beaches, always cause a stir.

Oarfish have a long, slender body with a silver-blue coloration and red fins. They have a distinctive crest on their head and a long, ribbon-like dorsal fin that runs the length of their body. They lack scales and have a smooth, slimy skin.

Apr 4, 2025 · A ribbon-shaped fish, very thin from side to side, the oarfish may grow to a length of about 9 metres (30.5 feet) and a weight of 300 kg (660 pounds). It is shiny silver in colour, with long, red, oarlike pelvic fins and a long, red dorsal fin …