Viperidae Vipera berus sachalinensis 31450 1 SBM-1935JUN06 Asia KOREA Ryanggang Engando 6 Jun 1935 Bergman, S et al. 128.81 41.5675 Viperidae Vipera berus sachalinensis 31448 1 SBM-350820 Asia KOREA, NORTH North Hamgyong Shuotsu River, probably Onpo area 20 Aug 1935 Bergman, S et al. 129.53 41.6491 Viperidae Vipera berus sachalinensis 31449 1 SBM-1935MAY28 Asia KOREA, NORTH Ryanggang Engando 28 May 1935 Bergman, S et al. 128.81 41.5675