Microtus gerbei (Gerbe, 1879) . Le Naturaliste, 1:51.

TYPE LOCALITY: France, Loire-Inferieure, Dreneuf .

DISTRIBUTION: SW France, and the Pyrenees Mtns of France and Spain (see Krapp, 1982d).

SYNONYMS: brunneus, pyrenaicus .

COMMENTS: Subgenus Terricola, savii species group sensu both Chaline et al. (1988) and Zagorodnyuk (1990). This species was reviewed by Krapp (1982d) under the name pyrenaicus, but according to Spitz (1978) the latter is a nomen dubium and gerbei assumes priority. The species was included in savii by Corbet (1978c), but chromosomal evidence and craniometric analysis underscore its specific integrity (Kratochvil and Krâl, 1974; Spitz, 1978). Chromosomal data (as pyrenaicus) summarized by Zima and Krâl (1984a).