Abstract

Two new, abyssal species of the genus Barathronus are described from the North Atlantic. B. unicolor, based on 18 specimens, all from the Northwest Atlantic, is characterized by its almost complete lack of peritoneal pigmentation, by a ventral flexure of the anterior end of the vertebral column, and by the presence of a pair of lobes at the basis of the penis. B. multidens, based on 2 specimens, one from the western and one from the eastern Atlantic, has a higher number of fangs on vomer (11) and on palatines (8-11 on each) than any other Barathronus sp. and lacks the lobes at the basis of the penis.

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