From: The normal development of Platynereis dumerilii (Nereididae, Annelida)
 | lifestyle before metamorphosis | lifestyle after metamorphosis | morphological changes |
---|---|---|---|
Settlement metamorphosis | planktonic | errant | digestive tract becomes functional, ciliary bands start to get abolished, apical tuft is lost |
Cephalic metamorphosis | errant | tubicolous | transformation of the first pair of parapodia, formation of tubes, larval eyes and ciliary bands disappear |
Sexual metamorphosis | tubicolous | pelagic | maturation of gametes, enlarging adult eyes, development of paddle shaped chaetae and epitokous musculature |