four adult morphs in Paracerceis sculpta;
females are monomorphic; a-males are largest possess
elongated uropods and comprise 81% of aggregate male
population samples, b-males are smaller than a-males, resemble females in their behavior
and external morphology (although b-males are slightly smaller than females),
invade spongocoels by mimicking female behavior and comprise 4% of aggregate
male population samples; g-males are smallest, comprise 15% of aggregate male population and use
their small size and rapid movements to invade spongocoels (From Shuster 1992).