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CLASS II.— -ORDER I. 
blended ; probably in the midst of the sea, and whilst 
their polypi are living, the Galaxauras, as well as 
the Neseas and Acetabularias, are of a more or less 
bright grass-green, slightly tinged with violet. 
The height of these Polypidoms is not considerable, 
rarely exceeding a decimetre ; and there are some 
which scarcely reach three centimetres. 
It is with these that I shall conclude the description 
of the species belonging to this genus, which seems 
naturally to unite itself with the one which follows, 
viz. the Janias, an intermediate link between the Ga- 
laxauras and the Corallinas. 
OBLONG. 
1. Galax aura oblongata . Articulations long, 
and rendered flat by desiccation : rind or exterior very 
thin, and inclining to red. 
Seas of America and coast of Portugal. 
UMBELLATED. 
2. Galaxaura umbellata . Branches dichotomi- 
sing at every articulation, and each rising to the same 
height, which gives the Polypidom the form of an um- 
bel; the diameter of the stems and their branches 
about three millemetres ; colour inclining to white ; 
height from six to eight centimetres. 
Caribean sea. 
OBTUSE. 
3. Galaxaura obtusata. Articulations oblong 
and oval, rounded at both extremities. 
Coasts of the Bahamas. 
