The Arcturidae are a family of marine isopod crustaceans in the suborder Valvifera. Members of the family resemble woodlice and are found globally in cooler areas in shallow seas.
Description The head is incapable of rotating laterally. Two pairs of antennae are set at the front of the head. The eyes are usually well developed and the mouthparts do not form a suctorial cone or proboscis. The thorax or pereon is smooth or slightly sculptured and sometimes spinose or rugose. A flexion occurs between it and the abdomen or pleon, so from a lateral view, the front part of the animal is arched up. The pereiopods are held close to the head, while the pleopods are attached to the pleon, making it appear no appendages on the pereon.
Genera The World Register of Marine Species includes these genera in the family:
Agularcturus Kensley, 1984 Amesopous Stebbing, 1905 Arctopsis Barnard, 1920 Arcturina Koehler, 1911 Arcturinella Poisson & Maury, 1931 Arcturinoides Kensley, 1977 Arcturopsis Koehler, 1911 Arcturus Latreille, 1829 Astacilla Cordiner, 1793 Edwinjoycea Menzies & Kruczynski, 1983 Idarcturus Barnard, 1914 Neastacilla Tattersall, 1921 Parastacilla Hale, 1924 Spectarcturus Schultz, 1981
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