title: An anomaly within the genital system in a female Ascaris suum Goeze.
abstract: The authors describe an individual of the female Ascaris suum Goeze with a unique genital system. A female with such an anomaly was found during laboratory classes of Invertebrate Zoology at the Faculty of Biology and Environmental Protection, NCU. The specimen was about 200 mm long, and the total length of the reproductive system was 1970 mm. Further comparative analysis between unchanged and changed individuals revealed differences in the length of individual sections of the studied system, as well as in the diameter of the uterus. The described case is extremely interesting because of the phenomenon of eutely occurring in nematodes. The exact cause and mechanism of abnormalities described in Ascaris suum are not known and difficult to explain experimentally because of the extremely small number of these anomalies. Moreover, the interpretation of the anomaly is difficult because of the specific behavior and complex morphogenesis of this endoparasite.
authors: Department of Invertebrate Zoology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, 1 Lwowska Street, 87-100 Toruń, Poland. templin@umk.pl
authors: Julita
authors: J
authors: Templin
authors: Teresa
authors: T
authors: Napiórkowska
authors: Maryla
authors: M
authors: Szczepanik
mesh_terms: D000818:Animals; D017165:Ascaris suum / Q000033:anatomy & histology*; D005260:Female; D005836:Genitalia, Female / Q000002:abnormalities; D011044:Poland