1. Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, Brno, CZ-611 37, Czech Republic
2. Biology Program, Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, 903-0129, Okinawa, Japan
3. Upazila Health Complex, Mohalchari, Khagrachari, Bangladesh
4. Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi, Bangladesh
5. Department of Biology, Faculty of Science, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan