Jean Pierre HugotMahidol UniversityMuseum National d'Histoire Naturelle2018-06-212018-06-212005-01-01Comparative Parasitology. Vol.72, No.1 (2005), 1-5152526472-s2.0-13644258382https://repository.li.mahidol.ac.th/handle/123456789/16245Syphacia (Syphacia) millardiae n. sp. (Nematoda: Oxyuridae: Syphaciinae) is described based on specimens collected from a soft-furred field rat, Millardia meltada. This species is closely related to several other members of the genus Syphacia, also murid parasites. This species closely resembles Syphacia (Syphacia) obvelata, a cosmopolitan parasite of Mus musculus. Syphacia (Syphacia) millardiae n. sp. differs from S. obvelata in that females exhibit a cuticular ornamentation with varicose cuticular elevations between the cephalic nervous endings, smaller body width, smaller eggs, and a longer esophagus. Males exhibit a shorter body length, a longer tail with a shorter tail tip, a longer esophagus, and a longer gubemaculum than do males of S. obvelata.Mahidol UniversityAgricultural and Biological SciencesImmunology and MicrobiologyArticleSCOPUS10.1654/4130