A newly recorded species of the genus Phronima (Amphipoda, Hyperiidea, Phronimidae) from off Jeju Island, Korea
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A newly recorded species, Phronima solitaria Guérin-Méneville, 1844, belonging to the family Phronimidae Rafinesque, 1815, was collected during a pelagic zooplankton survey in the Jeju Sea of Korea. This species is characterized by the presence of a strong single protuberance on the carpus of pereopod 5. Phronima solitaria is morphologically similar to P. atlantica Guérin-Méneville, 1836, and P. sedentaria (Forskål, 1775), however, it is distinguished from other congeneric species by the length of pleonite 1 compared to pereonite 7, the single protuberance on the carpus of pereopod 5, and the subequal lengths of both rami on all uropods. In the present study, a newly recorded species is illustrated and compared to related species. A key to species of the family Phronimidae from Korean waters is also provided.
Abstract
A newly recorded species, Phronima solitaria Guérin-Méneville, 1844, belonging to the family Phronimidae Rafinesque, 1815, was collected during a pelagic zooplankton survey in the Jeju Sea of Korea. This species is characterized by the presence of a strong single protuberance on the carpus of pereopod 5. Phronima solitaria is morphologically similar to P. atlantica Guérin-Méneville, 1836, and P. sedentaria (Forskål, 1775), however, it is distinguished from other congeneric species by the length of pleonite 1 compared to pereonite 7, the single protuberance on the carpus of pereopod 5, and the subequal lengths of both rami on all uropods. In the present study, a newly recorded species is illustrated and compared to related species. A key to species of the family Phronimidae from Korean waters is also provided.