Americanus, a widely distributed American form.

The species of this genus prey largely upon earth-worms and insects, to which their bite is poisonous.

The CEKMATIID.

E have the antennae bristle-like and longer than the body ; the legs are also very long, and facetted eyes instead of ocelli, are present an exceptional feature among the myriapods.

Our only species, Cermatia forceps, which is rarely found in New England, but which is more common in Philadelphia and the South, is a beautiful form ; its general color is a greenish brown, sometimes inclining towards purple, the body and legs being striped and banded with green.