The Largetooth Cookiecutter shark (Isistius plutodus) is a rare species of shark belonging to the order of Dogfish, in the family Dalatiidae (Kitefin sharks), reported from depths of 200–660 feet at scattered locations in the Atlantic and Pacific Oceans.
The Largetooth Cookiecutter Shark is a rare species of dogfish shark in the family Dalatiidae, found in scattered locations between the Atlantic and the Pacific oceans. Biology and Description: The Largetooth Cookiecutter Shark has a long, cigar-shaped body with a short, blunt head and snout.
Cookiecutter shark. The name “cookiecutter shark” refers to its feeding habit of gouging round plugs, as if cut out with a cookie cutter, out of larger animals. Marks made by cookiecutter sharks have been found on a wide variety of marine mammals and fishes, as well as on submarines, undersea cables, and even human bodies.
Cookiecutter sharks have even been recorded trying to take a bite out of submarines! The Largetooth Cookiecutter shark is reported to have the largest teeth relative to body size of any living shark. The Largetooth Cookiecutter shark is relatively rare, only ten specimens have been recorded. Little is known about this species.
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The largetooth cookiecutter shark (Isistius plutodus) is a rare species of dogfish shark in the family Dalatiidae, reported from depths of 60–200 m (200–660 ft) …
The Largetooth Cookiecutter Shark has a cigar-shaped body, a short conical snout and two low, spineless dorsal fins. It has a row of 19 huge teeth (proportionately the largest of any shark …
Both sharks have a short, bulbous snout: that of the largetooth cookiecutter shark is somewhat shorter. Both sharks have two dorsal, or top, fins, set far back on the body, but no anal fin. Roughly the same size, the dorsal fins lack the rigid frontal spine found on certain other sharks.
The largetooth cookiecutter shark Isistius plutodus has no collar marking around throat, a small asymmetrical caudal fin with a short ventral lobe less than half the length of dorsal caudal margin, bigger mouth and gigantic lower teeth (proportionately the largest in any living shark) in 19 rows (upper teeth = 29 rows). Eyes set well forward on head, with extensive anterior binocular field.
The Largetooth cookiecutter shark looks very similar but has no collar-marking over the branchial region. Endangerment Status in the IUCN Red List :
cookiecutter shark attack to whale specimen, showing the fresh wound and healed scars (B). Largetooth cookiecutter shark on aCuvier’s beaked whale 309 …
World Range & Habitat. Cookiecutter sharks live in the warm, deep waters of equatorial oceans, primarily in coastal waters near islands. They inhabit deep waters below 1,000 m during the day and migrate into surface waters at night at around 300 m. They have been found in depths up to 3,500 m.