850 THE AMERICAN NATURALIST. 
eleven-jointed cerci in the place of the more specialized anal 
forceps, was discovered by O. F. Cook in Liberia. Very 
recently the same form was taken at Federacion in the Argen- 
tine Republic by Silvestri. 
COLEBROOK, CONN., August 14, 1900. 
! Anche Projapyx stylifer, O. F. Cook, nella R. Argentina. Nuovo genere di 
Polyxenidz, Zoo. Anzeiger, Bd. xxiii, Nr. 609, March 5, 1900, pp. 113, I14. 
