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

by Charles Darwin

1. [CORONULA] BALÆNARIS. Pl. [15], fig. [2], [2 b]: Pl. [16], fig. [3], [5].

LEPAS BALÆNARIS. Gmelin. Systema Naturæ (1789).

---- ------ Chemnitz. Conch., vol. 8, Tab. 99, fig. 845, 846 (1785).

BALANUS ------ Bruguière. Encyclop. Method., Pl. 164, fig. 13-18 (1789).

CORONULA ------ Lamarck. Annales du Museum, vol. 1, Tab. 30, fig. 2-4 (1802).

-------- ------ Chenu. Illust. Conch., Plate, fig. 1 and 4.

-------- ------ De Blainville. Dict. des Scien. Nat., 1818 and 1824, Tab. 117, fig. 3, 3 a.

Shell much depressed, with longitudinal flattened ribs, having simple edges; orifice rounded-hexagonal: radii very thick, almost equalling the shell in thickness: opercular valves four.

Hab.—Attached to whales in the Southern Ocean.