Fig. 2
From: Three in one: evolution of viviparity, coenocytic placenta and polyembryony in cyclostome bryozoans
Details of gonozooids (stereomicroscope). a, b, Crisia eburnea. a distal tips of the branches with fully-formed (left) and forming (right) gonozooids (both containing embryos). b Decalcified tip of the branch with gonozooid showing embryos and larvae visible through semitransparent zooidal wall. c Decalcified tip of the branch with gonozooid containing embryos in Crisiella producta. Ooeciostomes shown by arrows. e, embryos; l, larva; p, polypide of autozooid