Eremias arguta

ON POSSIBLE ESTIVATION OF PHRYNOCEPHALUS HELIOSCOPUS (PALLAS, 1771) AND EREMIAS ARGUTA (PALLAS, 1773) IN THE ALTAI REGION

Summer counts of Phrynocephalus helioscopus (Pallas, 1771) and Eremias arguta (Pallas, 1773) were conducted in the Altai Region during April - September, 2016. A sharp decline in the activity of lizards in June and July was noted, due to the high temperatures and dry weather. As a result of excavation of some burrows, lizards in a non-active state were found. The possibility of summer hibernation (estivation) of the species is considered.

CASES OF INCOMPLETE AUTOTOMY AND TAIL REGENERATION ABNORMALITY OF THE STEPPE-RUNNER (EREMIAS ARGUTA (PALLAS, 1773)) AND SAND LIZARD (LACERTA AGILIS LINNAEUS, 1758) IN THE VOLGOGRAD REGION

The tail regeneration frequency in 55 lizards from the Volgograd region was analyzed, among which were 12 steppe-runners (Eremias arguta (Pallas, 1773)) and 43 sand lizards (Lacerta agilis Linnaeus, 1758). The following cases of tail regenerates were observed: 0) a normal tail; 1) regeneration in the distal third; 2) a tail regenerated from the middle part; and 3) autotomy near the base (the proximal third). The majority of the lizards had normal tails (60.0% of E. arguta and 83.2/57.1% of L. agilis in females/males).