Matteo - documentation of snakes:
Hierophis viridiflavus #2 - pattern of melanistic specimen
Matteo - documentation of snakes:
Hierophis viridiflavus #3 - pattern
Matteo - documentation of snakes:
Vipera berus #1, female - pattern (specimen with colors similar to those of a male)
Matteo - documentation of snakes:
Vipera berus #2, female - pattern
Matteo - documentation of snakes:
Coronella austriaca #1, female - pattern
Matteo - documentation of snakes:
Vipera aspis francisciredi #2, male - pattern closeup
Matteo - documentation of snakes:
Vipera aspis francisciredi #4, male - pattern
Matteo - documentation of snakes:
Vipera aspis atra #2, male - pattern
Matteo - documentation of snakes:
Vipera aspis atra #3, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #4, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #5, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #6 , female - pattern
Matteo - documentation of snakes:
Vipera berus #4, female - pattern
Matteo - documentation of snakes:
Vipera berus # 4, 5, females - comparison between two patterns
Matteo - documentation of snakes:
Vipera berus #5, female - pattern
Matteo - documentation of snakes:
Vipera berus #6, female - pattern
Matteo - documentation of snakes:
Vipera berus #7, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #7, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #8, female - pattern (melanotic)
Matteo - documentation of snakes:
Vipera aspis francisciredi #5, male - pattern
Matteo - documentation of snakes:
Vipera aspis atra #11, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #12, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #13, male - pattern
Matteo - documentation of snakes:
Vipera aspis atra #14, female - pattern
Matteo - documentation of snakes:
Vipera aspis atra #15, female - pattern
Matteo - documentation of snakes:
Vipera aspis francisciredi #6 - pattern (young specimen)
Matteo - documentation of snakes:
Hierophis viridiflavus #5, male - pattern
Matteo - documentation of snakes:
Coronella austriaca #2 - pattern (young specimen)
Matteo - documentation of snakes:
Natrix tessellata #4, female - pattern (melanotic)
Matteo - documentation of snakes:
Vipera aspis atra #16, male - pattern (melanic)
