662 



MONOGRAPHS OF NORTH AMERICAS KODENTIA. 



I vr.M I. — Measurements of Seven skulk of SCICROPTEltUS V'OLUCEIXA var. \ OLUCEIXA. 



* Specimens from Museum of Comparative Zoology, Cambriilgo, Mass. 



Table II. — Measurements of seventeen specimens of Sciuhopterus yolucella var. HUDSONIUS. 



