Matteo - documentation of snakes: Natrix tessellata in its habitat
Matteo - documentation of snakes: Natrix natrix #1 - old female in its habitat
Matteo - documentation of snakes: Zamenis longissimus #1 on tree on plain wood
Matteo - documentation of snakes: Hierophis viridiflavus #3 in anthropic habitat
Matteo - documentation of snakes: Vipera berus #1, female in alpine habitat
Matteo - documentation of snakes: Hieropis viridiflavus #4 male in alpine habitat
Matteo - documentation of snakes: Zamenis longissimus #2 in karst habitat
Matteo - documentation of snakes: Vipera aspis francisciredi #1, female in anthropic habitat on alps
Matteo - documentation of snakes: Vipera apsis francisciredi #3 , male in plain wood habitat
Matteo - documentation of snakes: Vipera aspis atra #1, female in alpine habitat
Matteo - documentation of snakes: Vipera ammodytes #1, male on alert in its karst habitat
Matteo - documentation of snakes: Vipera ammodytes #2 , male hidden in its karst habitat
Matteo - documentation of snakes: Vipera aspis atra #3, female in its habitat (near a stream)
Matteo - documentation of snakes: Vipera aspis atra #4, female in its habitat
Matteo - documentation of snakes: Vipera berus #5, female in its alpine habitat
Matteo - documentation of snakes: Vipera berus #6, female in its alpine habitat
Matteo - documentation of snakes: Vipera aspis atra #7, female in its alpine habitat
Matteo - documentation of snakes: Vipera aspis atra #11, female in its alpine habitat
Matteo - documentation of snakes: Vipera aspis atra #12, female in its alpine habitat
Matteo - documentation of snakes: Natrix tessellata #4, melanotic female in alpine habitat
Matteo - documentation of snakes: Vipera aspis atra # 16, melanic male in its alpine habitat
Matteo - documentation of snakes: Vipera aspis francisciredi #8, male in its plain wood habitat
Matteo - documentation of snakes: Vipera aspis hugyi #2, melanic female in its habitat
Matteo - documentation of snakes: Hierophis viridiflavus #8, male in its habitat
Matteo - documentation of snakes: Vipera aspis francisciredi #11, female in its habitat
Matteo - documentation of snakes: Vipera ursinii #1, adult female in its Italian habitat
Matteo - documentation of snakes: Vipera ursinii #5, sub-adult female in its Italian habitat
Matteo - documentation of snakes: Vipera berus #12, female in its habitat