HardyDisk™ Optochin Differentiation Disk。Nikon 7x50 IF SP WP - Optics Trade。It's the most common stag beetle in Taiwan, Dorcus titanus sika.。It's the most common stag beetle in Taiwan, Dorcus titanus sika.。。All are dried specimens collected in the field for academic research.Data is included with each specimen.Not check