O. G. Dely szerk.: Vertebrata Hungarica 8/1-2. (Budapest, 1966)
Marián, M.: The herpetofauna of the Fehértó (Lake Fehér) near Kardoskut, Hungary 93-104. o.
Of the amphibians inhabiting the waters of the reeds ( Bolboschoenetum phragmitetosu m) , the most frequent is the marsh-frog ( Rana ridlbund a PAIL.). Though this species lives in every aquatic habitat of the lake, it still prefers best the water patches between the reedy stands and the coastal zone covered with vegetation. This is the biggest-sized frog species of the alkali plains. The general size of the specimens collected in the Fehértó is 60-69 mm. The tree-frog ( Hyla a. arbore a L. ) also inhabits the reeds and the soda marshes. Owing to its protective coloration, it is seldom observable, hence the populations seem to be small than they actually are. The samll number of grass snakes ( flatrix n. natri x L. ) inhabit the grassy areas adjacent to the shores ( Puccinellietosu m) , and the coastal zone itself. The frog and toad fau-r nas of the lake could nourish a considerably higher number of snakes than the observed one. However, the bare, tree- and bushless shores hardly offer suitable retreats and shelters for the species,thus being strongly decimated by its natural enemies. (After the evaporation of the water of the lake, the situation becomes the reverse: the snake can then find excellent hiding places in the reeds, but by then the number of amphibians serving for its food have already considerably decreased. ) The sand-lizard ( Lacerta a. avili s L. ) lives on the grassy shores and the soda fields. A small population occurs along the southern shore of the lake. A characterization of the herpetofauna Six amphibian species ( Triturus c. eristatu s LATJR. , Bombina bomb in a L., Pelobates f. fuscu s LAUR., Bufo v. viridis LAUR. , Hyla a. arbore a L., Rana rldibund a PALL.) and one subspecies ( Bomb ina bomb in a L. var. viridi s MARliK) have been
