Terrestricythere is a genus of crustaceans belonging to the monotypic family Terrestricytheridae. The first known species Terrestricythere ivanovae was described from the North Western Pacific Kuril Islands, between Japan and the Kamchatka Peninsula of Russia. The second, Terrestricythere pratenesis was found in Russia (near Vladivostok, Amur Gulf, in the Sea of Japan), alongside a second population of T. ivanovae. Another, Terrestricythere proboscidis was subsequently found years later around Japan (Sea of Japan). Together, this distribution reflects coastal regions of the North Western Pacif
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Terrestricythere is a genus of crustaceans belonging to the monotypic family Terrestricytheridae. The first known species Terrestricythere ivanovae was described from the North Western Pacific Kuril Islands, between Japan and the Kamchatka Peninsula of Russia. The second, Terrestricythere pratenesis was found in Russia (near Vladivostok, Amur Gulf, in the Sea of Japan), alongside a second population of T. ivanovae. Another, Terrestricythere proboscidis was subsequently found years later around Japan (Sea of Japan). Together, this distribution reflects coastal regions of the North Western Pacific. Meanwhile, another species was unexpectedly discovered in the United Kingdom by Horne et al. 2004. They discuss the potential transport by migrating birds, but also possibly introduction to north-west Europe by military vehicles from the north-west Pacific during World War II. This study also mentions two specimens from a lake in France (citing Scharf & Keyser, 1991) which they do not consider to be adequate evidence of a viable population. Soon after, a fifth species was described from the Black Sea around the Crimean Peninsula
, the genus contains five species: Terrestricythere crimaea Terrestricythere elisabethae Terrestricythere ivanovae Terrestricythere pratenesis Terrestricythere proboscidis
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