Article
Ecology and Evolution of Phenotypic Plasticity in the Penis and Cirri of Barnacles.
Integrative and comparative biology - 1 Oct 2016
Hoch J Matthew, Schneck Daniel T, Neufeld Christopher J
Abstract excerpt
Most barnacles are sessile, simultaneous hermaphrodites that reproduce by copulation. This is achieved through the extension of a muscular penis, famous for being the proportionally largest in the animal kingdom. The penis is a long cylindrical or conical organ, composed of a series of folded rings, allowing it to stretch to great lengths. The penises are covered with chemosensory setae allowing them to seek out...
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