PROC. BIOL. Soc. WASH., VOL. IX, 1894. 



PLATE II. 



Fig. 3. 



Fig. 4. 



A. M. WESTERGREN. DEL. 



FORBES LITH. MFG. CO. 



FIGS. 1 AND 2. SKULL OF THE TYPE Arvicola terra; nova: -Bangs. ABOUT x 

 FIG. 3. MAXILLARY MOLAR SERIES. ABOUT x 10g 

 FIG. 4. MANDIBULAR MOLAR SERIES. ABOUT x 10 



