clava

In Colymbetes serricornis, a water-beetle, the male has a serrated clava of four joints.

Variations of the kind we are considering are also observable in the clava, or knob, in which antenn often terminate.

The Prickly-fruited sculus has nearly ripened its nut, Zanthoxylon clava herculis, in fruit, a "wild gourd" not in flower.

(a) Tentacles filiform; type of Clava (fig. 5), Cordylophora, &c.