The rostral is enlarged and elongated, imparting a characteristic somewhat pointed shape to the head.
Other animals reported to have ingested voles include trout (Salmo spp.), Pacific giant salamander (Dicampton ensatus), garter snake (Thamnophis spp.), yellow-bellied racer (Coluber constrictor flaviventris), gopher snake (Pituophis melanoleucas), rattlesnake (Crotalus viridis), and rubber boa (Charina bottae).