Spermatogenesis and sperm structure in the water mite Unionicola tetrafurcatus (Unionicolidae) with remarks on the male reproductive system.
ABSTRACT The male reproductive system in the water mite _Unionicola tetrafurcatus_ consists of a single accessory gland, 2 testes, each leads to a vas deferens, the latter leads to an ejaculatory duct and copulatory organ. The system is supported with a genital skeleton consisting of cella and brachia. Each testis is composed of a glandular and germinal parts. In the ... Read more