Sexual Dimorphism in Trapelus agilis agilis (Olivier, 1807) (Sauria: Agamidae) from Tabas Region, Northeastern Iran

Naeimeh Eskandarzadeh, Nasrullah Rastegar-Pouynani, Eskandar Rastegar-Pouyani, Leila Zinati


In order to investigate the patterns of sexual dimorphism in Trapelus agilis (Olivier, 1807) from Tabas region, northeastern Iran, we collected 24 samples (15 males and 9 females) and 17 characters including 13 morphometric and 4 meristic were examined. The results show that males and females are different significantly in six morphometric and one meristic character which cause differences in body, tail and head shape. In addition, the differences can be seen in color pattern and the presence of callose preanal scales and preanal pores. We discuss the differences in shape, size and color pattern in relation to differences in habitat use and their role in reproductive processes.


Trapelus agilis; sexual dimorphism; morphological characters; Tabas region; Iran

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