Trowbridge’s Shrew is uniformly dark grey, slightly browner in summer than in winter, with distinctly white feet. Vibrissae (whiskers) are numerous and the skull and rostrum (snout) are shorter, giving this species a rounder face and head than other shrews. Juveniles have hairy tales that become naked like a rat’s as they mature. In shrews dentition patterns, shape and number are a key identification tool. The third unicuspid is smaller than fourth and the teeth are pigmented a dark reddish-brown.