L. Forró szerk.: Miscellanea Zoologica Hungarica 8. 1993 (Budapest, 1993)

Janisch, M.: A mutant form of the meadow viper (Vipera ursinii rakosiensis Méhely) from Hungary with a peculiar colour pattern

3 Fig. 3. The peculiar pattern of the mutant female Fig. 4. A clutch of 19 juvenile meadow vipers: 13 specimens with mutant, 6 with normal colouration Miscnea zool. hung. 8., 1993