Note 107 — 3. Genus—TETRACLITA. Pl. 10, 11.

As Gmelin and Bruguière published the same year, I do not know which comes first, but I have adopted the best known name. Most authors give, amongst their references, Chemnitz, vol. 8, Tab. 98, fig. 836, 837, but the accompanying description is more applicable to T. serrata of this work than to T. porosa; without a figure or description, however, of the under side of the scutum it is impossible to decide. Several authors, also, give Lepas cariosa of Pallas, as a synonym; this, however, is the Balanus cariosus of this work.