| As adults they lack appendages, segmentation, and all internal organs except gonads and the remains of the nervous system. |
| Cysts of different shapes and sizes appeared in the conjunctive tissues of the abdomen and viscera, mainly in the liver, gonads, and pancreas. |
| To compensate, internal organs such as the gizzard, gonads, and intestine may shrink. |
| One pair of saccate gonads lies between the dorsoventral muscles and the epidermis. |
| Once within the gonads, the germ cells differentiate as either male or female gametes. |
| The fugu enjoys the rare though not necessarily enviable distinction of having the most lethal skin, intestines, livers and gonads in the world. |
