CONVERGENCE EXAMPLE. “For example, tunicates such as the colonial sea squirts (Botryllus spp.) can reproduce both sexually, through egg fertilization followed by embryonic and larval development, and asexually, from a bud, and without intervening larvae: the full-grown animals are nevertheless very similar in gross anatomy and in many details of structure.”
http://rstb.royalsocietypublishing.org/content/365/1540/631.short