Arvicola terrestris (Linnaeus, 1758) . Syst. Nat., 10th ed., 1:61.

TYPE LOCALITY: Sweden, Uppsala .

DISTRIBUTION: Europe (except C and S Spain but including N Spain and N Portugal, W France, and SW Italy), from mountains of Mediterranean region to Arctic Sea, east through Siberia almost to Pacific coast, south to Israel, Iran, Lake Baikal and N Tien Shan Mtns of NW China (Corbet, 1978c; European range mapped by Reichstein, 1982b; former USSR portion outlined in Kuznetsov, 1965; Portugal record from Ramalhinho and Mathias, 1988).

SYNONYMS: abrukensis, albus, americana, amphibius, aquaticus, argentoratensis, argyropus, armenius, ater, barabensis, brigantium, buffonii, cantabriae, canus, castaneus, caucasicus, cernjavskii, cubanensis, destructor, djukovi, exitus, ferrugineus, fuliginosus, hintoni, hyperryphaeus, illyricus, italicus, jacutensis, jenissijensis, karatshaicus, korabensis, kuruschi, kuznetzovi, littoralis, martinoi, meridionalis, minor, monticola, musignani, niger, nigricans, obensis, ognevi, pallasii, paludosus, persicus, pertinax, reta, rufescens, scherman, schermous, seythius, stankovici, tanaiticus, tataricus, tauricus, turavi, uralensis, variabilis, volgensis.

COMMENTS: European populations are reviewed by Reichstein (1982b) and northern Spanish samples by Ventura and Gosalbez (1989). Morphometric analyses contrasting two subspecies in Netherlands reported by Warmerdam (1982). Morphological variability in context of taxonomic and distributional studies provided by Kratochvll (1980, 1983), Krystufek and Tvrtkovic (1984), Nikolaeva (1982), and Ventura (1991). More than one species is represented in this complex (see generic comments).