Abstract
A female specimen of the meso-bathypelagic isopod, Anuropus bathypelagicus Menzies and Dow, 1958 (Crustacea, Isopoda, Anuropidae), was found in the regurgitated stomach contents of the black-footed albatross, Phoebastria nigripes (Audubon, 1849) (Aves, Procellariiformes, Diomedeidae) on the breeding colony of Hachijo-kojima Islet (33°8′1.661″N 139°40′43.295″E), Izu Islands, Japan. The morphological characters of the specimen are in well agreement with the original and subsequent descriptions of A. bathypelagicus. Judging from the condition of the isopod, it is thought that one day has passed since it was consumed. This finding represents not only the first record of A. bathypelagicus from black-footed albatross stomach contents, but also the first record of the genus Anuropus from seabird stomach contents in the western North Pacific (including Japanese waters). The present study also suggests that the upwelling currents may provide surface-feeding albatrosses with foraging opportunities for meso-bathypelagic animals.
https://ror.org/02gmwvg31 
