Suface topography of adult Anchitrema sanguineum (Sansio, 1894) Looss, 1899 and Prosthodendrium (Prosthodendrium) urna (Looss, 1907) Dollfus, 1931 infecting bats in Upper Egypt (Qena).

Anchitrema sanguineum and Prosthodendrium (Prosthodendrium) urna are two digenean trematodes infecting many species of bats in Egypt. The surface topography of them was studied by scanning electron microscopy. Examination of A. sanguineum revealed the presence of posteriorly directed broadbase spines allover the body. The oral sucker is bordered by several small sucker-like papillae and few irregularly distributed pores. The ventral sucker is smaller than the oral one and surrounded by several papillae. In P. (P.) urna the body is covered with simple, spines posteriorly directed. The oral sucker has few papillae and its tegumental rim slightly elevated. The ventral sucker is slightly larger than the oral one.