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The bell's pliant tissue allows for the jellyfish to stretch 4 to 5 times its size, presumably to engulf their prey. Their four arms have a "paddle-like" or "kite-like" shape and can grow up to 10 m (33 ft) in length.
The taxonomy of the Cyanea species is not fully agreed upon; some zoologists have suggested that all species within the genus should be treated as one. Two distinct taxa, however, occur together in at least the eastern North Atlantic, with the blue jellyfish (Cyanea lamarckii Péron & Lesueur, 1810) differing in color (blue, not red) and smaller size (10–20 cm [3 + 7 ⁄ 8 – 7 + 7 ⁄ 8 ...
Upon reaching adult size, jellyfish spawn regularly if there is a sufficient supply of food. In most species, spawning is controlled by light, with all individuals spawning at about the same time of day; in many instances this is at dawn or dusk. [66] Jellyfish are usually either male or female (with occasional hermaphrodites).
Most of the large, often colorful, and conspicuous jellyfish found in coastal waters throughout the world are Scyphozoa. [4] They typically range from 2 to 40 cm (1 to 15 + 1 ⁄ 2 in) in diameter, but the largest species, Cyanea capillata can reach 2 metres (6 ft 7 in) across. Scyphomedusae are found throughout the world's oceans, from the ...
Depending on species, a fully grown box jellyfish can measure up to 20 cm (8 in) along each box side (30 cm or 12 in in diameter), and the tentacles can grow up to 3 m (10 ft) in length. Its weight can reach 2 kg (4 + 1 ⁄ 2 lb). [19] However, the thumbnail-sized Irukandji is a box jellyfish, and lethal despite its small size. There are about ...
The jellyfish measure about 8 inches (20 centimeters) in length. A rock slab shows one large (right) and one small (left) bell-shaped jellyfish with tentacles. The smaller animal is rotated 180 ...
Phyllorhiza punctata is a species of jellyfish, also known as the floating bell, Australian spotted jellyfish, brown jellyfish or the white-spotted jellyfish. It is native to the western Pacific from Australia to Japan, but has been introduced widely elsewhere.
Cyanea fulva, the Atlantic lion's mane jellyfish, is a species of jellyfish found along the Mid-Atlantic coastal region of the United States.C. fulva are commonly noted as being about two inches in diameter and smaller than C. capillata, however, larger than C. versicolor, a co-occurring close species.