Genus BERARDIUS Duvernoy.

Of this genus the National Museum has three skulls and three skeletons representing the species bairdii, and a skull representing the species arnuxii. The latter, Cat. No. 21511, U.S.N.M., is without exact locality, but is catalogued as having been obtained in New Zealand. As the species arnuxii has been well described and figured by Flower[48] and others, no detailed account of this skull is given here. Measurements of it, however, are included with those of B. bairdii in the table on [p. 68].