... References Download PDF . ... By the structure of the lower jaw lemmings from Bolshevik Island differ both from all recent subspecies of the genus, known karyomorphs, mtDNA phylogroups, and lemmings from Betovo. ... The comparative analysis of the skull and teeth of the brown bear from Hokkaido was carried out for three geographical groups previously established on the basis of mitochondrial DNA analysis (Matsuhashi etal., ...