Page:The Book of the Aquarium and Water Cabinet.djvu/98

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THE MARINE AQUARIUM.

resemblance is the strongest are grouped together under the general designation of Zoophytes. In Zoophytes, the leading feature of a radiate animal is very distinctly observable, and that leading feature is the arrangement of the vital organs around a centre, the organs composing

EDWARDSIA VESTITA, ESOP PRAWN, ENTEROMORPHA
COMPRESSA, ULVA LATISSIMA.

the rays of the imaginary star, or the petals of the imaginary flower, to which the mouth or stomach is the centre.