Femoral pore


![Evolution of femoral (epidermal) pores in lizards: a family overview. Pie charts from the maximum likelihood analyses are shown for ancestors, with the proportion of black representing the likelihood of epidermal pores being present in this ancestor.[5]](/uploads/202501/12/Absence_in_lizards3237.jpg)
Femoral pores are a part of a holocrine secretory gland found on the inside of the thighs of certain lizards and amphisbaenians which releases pheromones to attract mates or mark territory. In certain species only the male has these pores and in other species, both sexes have them, with the males being larger. Femoral pores appear as a series of pits or holes within a row of scales on the ventral portion of the animal's thigh.