Plate 28. 



Cunina peregrina, sp. now, stages in internal budding. 

 Fig. 1. Surface view of two adjacent gastric pockets, showing endodermal thickenings 



aud budding. X 10. 

 Fig. 2. Surface view of one corner of a gastric pocket, showing active formation of 



endodermal ridges, or proliferating stolons, and buds. X 100. 

 Fig. 3. Surface view of one such stolon, x 300. 



Fig. 4. Radial section through a gastric pocket, in the plane of the tentacle, showing the 



location of the stolons near the margin of the pocket, and their relation to 



the gonad (go) ; (g) mesogloea; (t) tentacle ; (n.p) nematocyst pad; (v) velum; 



(s.lam) stutzlamella ; (ec) ectoderm; (g.cav) cavity of the gastric pocket. 



X 100. 



Figs. 5-7. Three successive stages iu the constriction of the bud, b 2 , from the budding 



stolon, b 1 , showing the endodermic nature of the latter. In Fig. 5, the 



bud is but slightly constricted, in Fig. 6 it is almost separated, and in Fig. 7 



it lies free in the cavity of the gastric pocket, though close to the stolon 



(b 1 ); (ec) ectoderm; (en) endoderm ; (s.lam) stutzlamella. X 350. 



