Several kinds of abnormalities or malformations affecting the female genital system of Dorylaimid nematodes have been repeatedly reported in longidorid forms, more occasionally in free-living taxa. These anomalies include total or partial duplication of the system, a didel-phic-opisthodelphic condition, total or partial reduction of one genital branch, and the existence of two (or even three) vulvae (see Table 1 for a compendium of previous records). Radivojević (2005) described and discussed with some detail the nature of these anomalies.