Stepanova A. I., Kartavtseva I. V.
Amurian zoological journal 2026; 18(2): 546-561
This study clarifies the species composition of small mammals in the northeastern part of the Middle Amur Lowland. The vicinities of Elban settlement (left bank) and Troitskoye settlement (right bank) were surveyed. Within the meadow complex on both banks of the Amur River, seven species were recorded: Alexandromys maximowiczii , Myodes rutilus , Apodemus agrarius , Apodemus peninsulae , Craseomys rufocanus , Tamias sibiricus , and Sorex caecutiens . On the right bank of the Amur River, three additional species were trapped: Mustela nivalis , Crocidura lasiura , and Rattus norvegicus . The karyotype of Maximowicz’s vole from the right bank, studied here for the first time (2 n = 40a, NF = 58 и 2n = 41a, NF = 60), matched the variants described for the left-bank sample and known for the Middle Amur region as a whole. This finding suggests the occurrence of this species throughout the Russian part of the Lower Amur Lowland. Furthermore, the record of Crocidura lasiura confirms the presence of this species in the Anyuy River valley. The paper provides metric data for ten species.
