G. SERTULARIA. 
83 
pointed lateral appendages ; colour, a reddish green ; 
height, from one to two decimetres.—Plate 5. fig. 3. a. 
B. C. 
Australasia ; also on the English coast, as well as 
the Pectinata. 
Nota. This Sertularia is remarkable for its elegance. 
CLIMBING. 
8. Sertularia scandens . Principal stem filiform, 
with very few cells, and climbing upon Gorgonias or 
other marine productions ; secondary stems numerous, 
simple, dispersed, and pinnated ; cells with a toothed 
border ; ovaria oval, truncated, and bicornous ; colour 
inclining to rose ; height from two to four centimetres. 
Australasia. 
ZONED. 
9. Sertularia polyzonias. Cells oval; border 
with four slightly projecting teeth ; ovaria inclining 
to oval, marked with transverse zones. 
European seas. 
RIGID. 
10. Sertularia rigida. Dichotomous; branches 
diverging and fragile ; cells distant, rather large, and 
conical ; opening oval, with a point on the external 
border; colour greenish grey; size from three to four 
centimetres. 
Australasia. 
. distant. 
11. Sertularia distans. Stem slightly ramified; 
cells campanulated, very distant from each other, 
and gibbous ; opening contracted and toothed ; 
height from one to two centimetres. 
Australasia. 
