51�Թ�

But it's unclear which fish—the female or the parasitic male—controls the sperm release.

From the peculiar form of their prehensile antenn�, differing in no respect, except in the proportional lengths of the segments, from the same organ in the male I. Cumingii, I can feel no doubt that these were the larv� of the male I. quadrivalvis;—for a moment's reflection will show how excessively improbable it is, that several larv� of some other Cirripede, and that a Cirripede intimately allied to the parasitic male Ibla, should have forced themselves, without any apparent object, into the sack of the hermaphrodite Ibla.