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Giant isopods have been recorded in the West Atlantic from the US state of Georgia to Brazil, including the Gulf of Mexico and the Caribbean. [1] The four known Atlantic species are B. obtusus, B. miyarei, B. maxeyorum, and B. giganteus, and the last of these is the only species recorded off the United States.
Bathynomus vaderi can be up to 12.8 inches (0.325 m) in length and 2.2 pounds (0.997 kg) in weight, [4] and is one of the largest known species of isopods. [5] The species is predicted to have a similar habitat to the other giant isopod species Bathynomus jamesi. [2]
It is a member of the giant isopods (Bathynomus), and as such it is related—albeit distantly—to shrimps and crabs. [2] It was the first Bathynomus species ever documented and was described in 1879 by French zoologist Alphonse Milne Edwards after the isopod was found in fishermen's nets off the coast of the Dry Tortugas in the Gulf of Mexico .
Researchers exploring the wares of fishers in Vietnam discovered a “supergiant” sea bug species whose resemblance to Darth Vader inspired its name.
B. brucei is the largest 'giant' member of Bathynomus, a specimen collected 400 metres below sea level measuring 154 mm (6.1 in) long. [1] Members of the larger 'supergiant' group of Bathynomus species such as B. giganteus and B. kensleyi are known to grow to lengths of almost 20 in (510 mm). [3]
Amphipods, isopods, and allies Giant isopod The largest species is the giant isopod (Bathynomus pergiganteus), which can reach a length of 45 cm (18 inches) and a weight of 1.7 kg (3.7 lb). [263] Remipedes The largest of these cave-dwelling crustaceans is the species Godzillius robustus, at up to 4.5 cm (1.8 in). [264]
The largest isopod is in the genus Bathynomus and some large species are fished commercially for human food in Mexico, Japan and Hawaii. [15] Some isopod groups have evolved a parasitic lifestyle, particularly as external parasites of fish. [9] They can damage or kill their hosts and can cause significant economic loss to commercial fisheries. [16]
Porcellio hoffmannseggii is considered to be one of the largest terrestrial isopod species, with adults able to grow to be over 1.5 inches (3.8 cm) long. They are typically dark grey or black, with a thin white skirt around the edge of their body.