252 ALTERNATE GENERATIONS. 
by which it began its life as a free animal. The 
lobes are gradually obliterated, so that the mar- 
Aurelia flavidula, the common white Jelly-Fish of our sea-shores, seen from 
above: c, mouth; eeeeee, eyes; mmm ™M, lobes or curtain of the mouth 
in outlines ; 0 0 0, ovaries; ¢¢t, tentacles ; ww, ramified tubes. 
gin becomes almost an unbroken circle. The 
eight eyes were, as I have said, at the bottom of 
depressions in the centre of the several lobes ; 
but, by the equalizing of the marginal line, the 
gradual levelling, as it were, of all the inequali- 
ties of the edge, the eyes are pushed out, and 
occupy eight spots on the margin, where a faint 
indentation only marks what was before a deep 
cut in the lobe. The eight tubes of the lobes 
have extended in like manner to the edge, and 
