40 Life and Immortality. 
of huge jelly-fishes, covering the sca for miles and miles, 
transparent domes by day and phosphorescing lights by night, 
and now as tiny balls of jelly, glistening by millions in some 
quiet bay and splintering into light upon the beach; or in 
the form of living animal-trees waving their graceful arms 
over rocks in waters deep, or creeping like delicate threads 
over shells and stones and seaweed on the shore, where 
they often lose their identity and are mistaken for plants. 
There is scarcely a nook or cranny in the bed of ocean 
where these tree-like forms, associated with the beautiful 
sea-anemone, whose brilliant crimson, green and purple are 
unmatched in color by gem and flower, are not to be found. 
All these beautiful creatures, as well as the living coral 
that nestles in the bosom of the warm Mediterranean or the 
sea that lashes our Southern shores, or that struggles boldly 
against Pacific’s waves, are lasso-throwers. Ca/lenterata, the 
“hollow-bodied animals,” because of the large cavity within 
their bodies, is the name by which they are known to science. 
They naturally fall into two families, the Hydrozoa, or Water 
Animals, and the Actinizoa, or Ray-like Animals, our little 
Hydra, about which so much has been written, being repre- 
sentative of the former and the Anemones of the latter 
division. 
