PLATE XXIII . 1 
V INCULARIA . — FOVEOL ARIA. — MyRIOZOUM, &C. 
Figure 1. — Vincularia gothica, ....... 
la, magnified ; lb, more highly magnified, showing the gradual 
formation of the bridge across the orifice ; lc, slightly mag- 
nified portion of young branch in which the cells are quadri- 
serial ; Id, transverse section of same. 
,, 2. — Steganoporella magnilabris* . ... . 
2 a, magnified. 
„ 3. — A mphi hies trum capense* ...... 
3a, magnified. 
„ 4. — Foveolaria orbicularis, ...... 
4a, magnified ; 4 b, orifice ; 4c, avicularium, more highty mag- 
nified. 
,, 5. — Foveolaria elliptica, ....... 
5a, magnified ; 5b, 5c, ooecium and avicularia. 
,, 6. — Myriozoum marionense, ...... 
6a, magnified ; 6b, ramose variety ; 6c, younger portion of the 
zoarium ; 6d, single zooecium ; 6c, oral avicularium, more 
highly magnified. 
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1 The species thus marked (*) have been re-named since the plate was printed off. 
