10 



POLYZOA. 



TEIBE I. ARTICULATA. 



Polyzoary branched, erect ; branches 

 cylindrical, with the cells arranged on all 

 sides Salicornariadtf, 



Polyzoary branched, erect ; branches 

 flat, linear, with the cells on the same 

 plane 



FAMILY I. SALICORNARIAD.E. 



Saticornaria (Guv.). Surface divided into lo- 

 zenge-shaped spaces, by ridges surrounding the 

 cells. 



S. farciminoides. Fig. 8 ; n.s. and mag. 



FAMILY II. CELLULAEIAD^E. 



Cellularia (Pall.). Cells in two or three rows; 

 more than four between two joints, contiguous, 

 perforated behind ; no bird's-head nor whip. 



C. Peachii. Fig. 9 ; n.s. and mag. 

 Menipea (Lamx.). Cell oblong, tapering down- 

 wards, not perforate behind; one or two birds'- 

 heads in front below the aperture. 



M. ternata. Fig. 10 ; n. s. and mag. 



