Cirripedes from ocean ridges north of New Zealand

Fifteen species of sublittoral barnacles are identified from the vicinity of the Kermadec Islands, Norfolk Island, and Lord Howe Island. Three new species are described from Norfolk Island: Paralepas spinisegma from an antipatharian; Pachylasma ochriderma from a gorgonacean stem; and Acasta praerupta from a sponge. Other additions to the recorded barnacle fauna of the New Zealand region are Trilasmis eburneum (Norfolk Island), Chionelasmus darwini , and Pachylasma aurantiacum (the Kermadecs). The classification of the hexelasmid barnacles is revised after study of new and previously collected specimens. Aaptolasma is a junior synonym of Hexelasma , and Mesolasma n.gen. is proposed for specimens intermediate between Bathylasma and Hexelasma . The deep‐sea barncles of Norfolk Island and the Kermadecs are interpreted as an Indo‐Malayan faunal element of which some species extend to the north‐eastern part of the New Zealand continental shelf.