106 THE OCEAN WORLD. 
genus Paramecium, he adds, that in former writers a link was wanting, 
viz., tracing the young actually hatched from the egg of a Planarian. 
“‘ This deficiency,” he says, “I cannow fill. Itis another /zfusorium, 
a genuine Ofatina, With such facts before us, there is no longer any 
doubt left respecting the character of all these Polygastria; they 
are the earliest larval condition of worms,” 
