G. DYNAMENA. 
79 
iernate ; border entire ; height from two to three 
centimetres ; colour brown. 
On the Thalassiophytes and Polypidoms of Aus- 
tralasia. 
ROSY. 
5. Dynamena rosacea . Cells tubular; border 
oblique ; ovaria in the form of a flower with six di- 
visions, pointed, unequal, and curved. 
European seas. 
BEARDED. 
6. Dynamena barbata, Stem dichotomous ; cells 
with an oval mouth, the borders of which are garnished 
with very long cils ; colour whitish ; height about two 
centimetres. 
On the fucus of Australasia. 
PURSE-SHAPED. 
7. Dynamena bursaria. Stem branching, and ar- 
ticulated ; cells transparent and carinated. 
European seas. 
DWARF. 
8. Dynamena pumila. Cells campanulated and 
gibbous ; inner border long and pointed. 
On the plants and Polypidoms of the Atlantic 
Ocean. 
OBLIQUE. 
9. Dynamena obliqua . Stem simple and upright ; 
cells oval and a little arched ; the opening so oblique as 
to appear almost perpendicular ; colour, deep fawn ; 
height one, or one and a half centimetres. 
On the fucus of Australasia. 
