The male genital system of the water mite, _Unionicola aegyptiaca_ consists of an accessory gland, two spherical testes, two vasa deferentia, common vas deferens, an ejaculatory complex and spermatopositor (penis) and is supported with male genital skeleton. It is evident that each testis enclosed in a very thin amorphous layer (basal lamina) and consists of a germinal part, in which ... Read more