PLATE XVIII. 



Fig. 136. Angelopsis globosa Fewkes (after Fewkes 89 PL VII, fig. 2). Transverse section through the float 



and the siphosome. 



gm = spherical bag-like structure, = opening of the same into the cavity of the float, 



/ = "muscular floor". 

 Fig. 137. Archangelopsis typica nov. gen. nov. spec. (Cat. 10 A.). Complete, after a photograph. 4,5 X. The 



arrow indicates the direction of the sections. 



pn = pneumatophore, z.pr = zone of proliferation, n = nectophores, s = siphon, /, / = tentacles. 

 Fig. 138. Archangelopsis typica nov. gen. nov. spec. (Cat. 22). 4,5 X. Complete, after a photograph. 



Abbreviations as in Fig. 137. 

 Fig. 139. Archangelopsis typica nov. gen. nov. spec. (Cat. 10 R.). Longitudinal median section. 



Abbreviations as in PI. XVII. 

 Fig. 140. Parts of gigantic cells of the same. (Cat. 10 A. cc glass [4 III 4). 225 X. 

 Fig. 141. RluzoplLysa filiformis Forsk. A young specimen, complete. (Cat. 166 A.). 9 X. 

 Fig. 142. One of its young tentilla, the future trifid type, enlarged. 220 X. 



Fig. 143. Rhizophysa filiformis Forsk. (Cat. 18). A trifid tentillum showing its two lateral filaments. IIOX- 

 Fig. 144. A lateral view of the same, no X- 

 Fig. 145. A beak-like tentillum of the same, altered through the preservative fluid, no X. 



