A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.

by Charles Darwin

VERRUCA STRÖMII. Schumacher. Essai d’un Nouveau Syst. Class., 1817.

CREUSIA STRÖMIA ET VERRUCA. Lamarck. Animaux sans Vertèbres, 1818.

OCHTHOSIA STROEMIA. Ranzani. Memoire di Storia Nat., 1820.

CLISIA STRIATA. Leach. Encyclop. Brit. Suppl., vol. 3 (sine descript.), 1824.

CLITIA VERRUCA. G. B. Sowerby. Genera of Recent and Fossil Shells, Plate.

VERRUCA STRÖMII. J. E. Gray. Annals of Philosophy (new series), vol. 10, Aug., 1825.

Moveable scutum, with the lower articular ridge not half as broad as the short upper articular ridge: shell generally ribbed longitudinally.

Var., with the shell not longitudinally ribbed.

Hab.—Shores of Great Britain and Ireland, Shetland Islands; and, according to various authors, Denmark, Iceland, and shores of northern Europe. Red Sea, Brit. Mus. Attached to shells, laminariæ, rocks, crabs, and floating bark, from low tidal mark to fifty or ninety fathoms.