Enchodelus minor sp. n. and Mesodorylaimus vietnamicus sp. n. (Nematoda, Dorylaimida) from small freshwater bodies of Vietnam

摘要

Two new nematode species of the order Dorylaimida found in small freshwater bodies of Vietnam are described and illustrated. Enchodelus minor sp. n. is close to E. parvus Loof, 1971, but differs from it in the shorter body, longer oesophagus and tail,longer prerectum and absence of saccate bodies at tail. Mesodorylaimus vietnamicus sp. n. is close to M. ornativulvatis Abolafia & Pena Santiago, 1997 and M. parasubtilis (Meyl, 1957). From the former it differs in the comparatively thicker body, shorter spicules, greater number of precloacal supplements in males and absence of cuticular wrinkles and folds in the vulva region in females. From M. parasubtilus it differs in the longer body, comparatively shorter tail in females, shorter odontostyle and spicules, greater number of precloacal supplements in males and comparatively longer prerectum in females.