In this paper, two new species of Trochoidea (Xerocrassa) are described from the southern part of the Iberian Peninsula. Trochoidea (Xerocrassa) zaharensis n. sp. is only known from the type locality, in the east of Cádiz province; it has a medium-sized, depressed and umbilicated shell and a genital system with a male portion presenting a flagellum as thick and long as the epiphallus, but becoming abruptly thinner at top. Trochoidea (Xerocrassa) jimenensis n. sp. occurs in some localities of Cádiz, Málaga and Sevilla provinces; it shows a variable shell either in size, shape and ornamentation, but a genital system well-characterized by a flagellum thin at top and quite shorter than the epiphallus.