SQUIRTS, POLYPS, AND JELLY-FISHES. 71 
surface of the ocean, while still others bury them- 
selves to considerable depths in the sand and mud. 
The beautiful Cerianthus, whose purple-tentacled 
crowns recall the asters of our meadows, is an abun- 
dant form of the southern sand-shallows, which in 
the north is replaced by the singular worm-like 
and mud-inhabiting Haleampa. Like all other sea- 
anemones, the Halcampa is an exceedingly vora- 
cious animal, and, if unguardedly placed in a vial 
of sea-water containing marine worms and like 
treasures of the shore, will without compunction 
almost immediately begin a meal. And it is won- 
derful to what an extent their meal may be drawn 
out. 
Another sand-inhabiting form, frequently found 
attached to the under surfaces of stones, is Sagar- 
tia leucolena, also known as the ‘ white- 
armed anemone.’ It is a much less | 
slender species than the preceding, 
and differs in addition in the greater 
number and length of its tentacles. 
These animals multiply from eggs, 
by budding, and by fission—i.e., by 
constriction and subsequent separa- 
tion of the body into two or more 
parts. The latter process is repeated 
among many corals, although in the <y%% 
greater number of cases their com- F: 5 by 
pound colonies are built up through ~ garcawa. 
continuous budding. If you can con- 
ceive of a budded or compound colony of sea- 
anemones with the individual animals reduced in 
