82 SEA-SHORE LIFE 
Balanus hameri, Fig. 49", is a large rough-looking, solitary 
barnacle that grows upon rocks below low-tide level off the coast 
of New England north of Cape 
Cod. 
The Whale Barnacle, (Coro- 
nula diadema, Fig. 50), is at- 
tached to the skin of whales, 
the skin being drawn up into 
the shell of the barnacle so as 
to enable it to adhere firmly. 
The shell of this barnacle is fully 
an inch and a half wide and an 
inch high. In cross section it 

is hexagonal with six longitudi- 
nal ribs, each made up of four 
SS ae a od Ca ae er or five ridges. In barnacles that 
grow upon moving animals, the feathery feet are merely thrust out, 
and not waved about as in the rock barnacles, which must create 
currents in order to 
capture their food. 
The Stalked Bar- 
nacles, (Hig. 91). These 
are often called “ goose 
barnacles,” for the 
naturalists of the sev- 
’ 
enteenth century be- 
lieved that geese 
hatched from them. 
They are usually found 
attached to floating 
objects, such as the 
gulf weed, drifting 
logs, pumice or buoys. 
The fleshy stalk 
by which the barnacle 

is attached is the head Fig. 51; STALKED BARNACLES, Lepas Anatifera. 
end of the creature, From a buoy at Tortugas, Florida. 
and the feathery, curling legs are seen to protrude now and again 
through a cleft in the side of the shell. There is a minute eye 
