The Skin Development in the Pallas’ Coluber, Elaphe dione (Pallas, 1773) (Serpentes, Colubridae)

Tatjana N. Dujsebayeva


The development of the integument of the Pallas’ Coluber, Elaphe dione from egg-laying to hatching has been studied using light microscopy. The general pattern of development resembles that of other squamates, although some peculiarities and differences were noted. The symmetrical scale anlagen first appear when epidermis is bilayered. The dermal cells condense at the tops of symmetrical and primary asymmetrical body scale anlagen and blood capillaries penetrate the scale bases. Through out development, all aspects of epidermal and dermal histogenesis, and scale morphogenesis over the head are much advanced over than those of the body, but these differences disappear by hatching.


Serpentes; Elaphe dione; integument; development; histology

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