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The porcupine fish (as Diodon antennatus) is mentioned in Charles Darwin's famous account of his trip around the world, The Voyage of the Beagle. He noted how the fish can swim quite well when inflated, though the altered buoyancy requires them to do so upside down.
The long-spine porcupinefish is pale in color with large black blotches and smaller black spots; these spots becoming fewer in number with age. It has many long, two-rooted depressible spines particularly on its head. The teeth of the two jaws are fused into a parrot-like "beak". Adults may reach 50 cm (20 in) in length. [3]
They are morphologically similar to the closely related porcupinefish, which have large external spines (unlike the thinner, hidden spines of the Tetraodontidae, which are only visible when the fish have puffed up). The majority of pufferfish species are toxic, with some among the most poisonous vertebrates in the world.
Spot-fin porcupinefish: tropical and subtropical waters of the world, including the Mediterranean Sea Diodon liturosus G. Shaw, 1804: Black-blotched porcupinefish: tropical and subtropical waters of the Indo-Pacific area from eastern coasts of Africa to Japan Diodon nicthemerus G. Cuvier, 1818: Slender-spined porcupinefish
Young Diodon eydouxii caught using a plankton net in the South Atlantic Bight. Diodon eydouxii is known from the Atlantic, Pacific, and Indian oceans, where it typically occurs in warm, tropical areas with a water temperature between 23.1 and 29.1 °C (73.6 and 84.4 °F).
The black-blotched porcupinefish (Diodon liturosus), also known as shortspine porcupinefish, is a member of the family Diodontidae. It is found in the tropical and subtropical waters of the Indo-Pacific on coral and rocky reefs and in inshore waters. Other names are the blotched porcupinefish and the brown-backed porcupinefish.
Ireland: Sweet and Health-Conscious Indulgences. In Ireland, Valentine's Day indulgences took an interesting turn, blending classic romantic favorites with modern, health-conscious treats.
The spot-fin porcupinefish is a medium-sized fish which grows up to 91 cm, but the average size mostly observed is 40 cm. [2] Its body is elongated with a spherical head with big round protruding eyes, and a large mouth which is rarely closed.