caa a22 4500 469060530 CHVBK 20180323132855.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF01201494 doi (NATIONALLICENCE)springer-10.1007/BF01201494 Walzl Manfred Institute of Zoology, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria aut Ultrastructure of the reproductive system of the house dust mites Dermatophagoides farinae and D. pteronyssinus (Acari, Pyroglyphidae) with remarks on spermatogenesis and oogenesis [Elektronische Daten] [Manfred Walzl] Several parts of the reproductive system of both sexes ofDermatophagoides farinae andD. pteronyssinus are investigated and compared by light-, scanning electron-, and transmission electron microscopy. New techniques have been employed for scanning of the internal structures of these mites. The male reproductive system consists of unpaired testis, paired vasa deferentia, an accessory gland, ejaculatory duct, and copulatory organ. The female reproductive system consists of bursa copulatrix, ductus bursae, receptaculum seminis, paired ducti receptaculi, ovaries, oviducts, one chorion gland, ovipositor, and oviporus. Testis as well as ovaries are characterized by syncytia of nutritional function. The specifics of spermatogenesis are discussed in connection with sperm transfer. Similarities between the construction of the ovaries and oogenesis in astigmatic mites and telotrophic meroistic ovaries in insects are discussed. Elsevier Science Publishers B.V., 1992 Experimental & Applied Acarology Kluwer Academic Publishers 16/1-2(1992-11-01), 85-116 0168-8162 16:1-2<85 1992 16 10493 https://doi.org/10.1007/BF01201494 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01201494 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Walzl Manfred Institute of Zoology, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria aut NATIONALLICENCE 773 0- Experimental & Applied Acarology Kluwer Academic Publishers 16/1-2(1992-11-01), 85-116 0168-8162 16:1-2<85 1992 16 10493 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer