Newmanellinae n. subfam. is proposed for five species of tetraclitid barnacles that are referred to two genera. The tropical western Atlantic Newmanella Ross, 1969 contains N. radiata (Bruguiere), 1789, N. hentscheli (Kolosvary), 1942 and N. kolosvaryi n. sp. from the east coast of Panama. The western Pacific Yamaguchiella n. gen. contains two subgenera. The type species of Yamaguchiella s. s. is N. coerulescens (Spengler), 1790 and that of Rosella n. subgen. is N. vitiata (Darwin), 1854. Tetraclitella Hiro, 1939 contains two distinct groups, the nominotypical Tetraclitella s.s. and Eotetraclitella n. subgen., the type species of which is Tetraclitella darwini (Pilsbry), 1928. Tetraclitella digita Rosell, 1975 from the Philippines is a subjective synonym of T. karandei Ross, 1971 from India and Taiwan. Tetraclita aoranga Foster, 1978 from New Zealand is assigned to Astroclita Ren and Liu from the South China Sea.

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In 1995, Ross & Newman proposed Galkinia as a replacement name for Utinomia Galkin, 1986 (Cirripedia: Pyrgomatidae), which was pre-occupied. However, this author discovered Galkinia was itself pre-occupied by a genus of fossil fish, Galkinia Ghekker, 1948 (Actinopterygii: Pholidophoriformes).

In North America, Paleogene Verrucidae are rarely encountered. Only a single named species has been previously discussed by Zullo & Baum (1979), who provisionally assigned a Palaeocene form from North Carolina to Verruca rocana Steinmann, 1921. Eocene deposits in Washington State (USA) have now yielded two new species from intertidal to shallow water environments: Verruca gailgoedertae sp. nov. from the middle Eocene Crescent/McIntosh transition zone, and Verruca sorrellae sp. nov. from the upper Eocene to lowest Oligocene Gries Ranch and basal Lincoln Creek formations. Both species are characterized by punctate shell plates, and are placed in the lineage of Verruca stroemia (O.F. Müller, 1776). In Alabama, marls from the upper Yazoo Formation (Pachuta and Shubuta Members) have yielded Verruca alabamensis sp. nov., an uncommon deeper water form associated with abundant brachiopods and phosphate deposition. This last species shows no development of punctae and is not related to the lineage that leads directly to Verruca stroemia.

Acasta sulcata spinosa Daniel, 1955 has been discovered to be a junior homonym of Acasta spinosa Hiro, 1939. As both names were originally described in the genus Acasta, ICZN (International Commission on Zoological Nomenclature) Article 57.2 defines A. sulcata spinosa as a primary junior homonym, even though it is of subspecific nature.

Austromegabalanus psittacus is a large, common and economically important shoreline barnacle species of the west coast of South America. It was originally described by Juan Ignacio Molina as Lepas psittacus, but some confusion has arisen as to the exact reference to and year of publication of this species.