416 LEPUS. 
B. Silvilagus. 
‘“Interparietal persistent as a distinct bone in adults; rostrum 
wider than high; skull and teeth light; postorbital process united with 
cranium behind, inclosing a narrow foramen; upper surface of skull 
Fic. 80. LEPUS (SILVILAGUS) F. SUBCINCTUS. 
No, 8678 Field Columbian Mus. Coll. Nat. size. 
less pitted; skull sometimes wider than half its length, much arched; 
pelage softer.”’ 
