variation, [516]
Elytra, of Polynoids, [265], [292], [294], [298], [299], [309], [310], [311];
as brood-pouch, [275];
of Aphroditidae, [266];
arrangement of, [309];
of Sigalionina, [313]
Enantiidae, [19]
variation, [516]
Elytra, of Polynoids, [265], [292], [294], [298], [299], [309], [310], [311];
as brood-pouch, [275];
of Aphroditidae, [266];
arrangement of, [309];
of Sigalionina, [313]
Enantiidae, [19]