RHIGONEMA TRICHOPEPLUM SP-N (NEMATODA, RHIGONEMATIDAE), PARASITE OF AMILLIPEDE (DIPLOPODA, SPIROBOLIDA) FROM MYANMAR

A new species of parasite in the Rhigonematidae, Rhigonema trichopeplu m sp. n., is described from the intestine of an unidentified spiroboli d millipede (Diplopoda: Spirobolida) from Myanmar. The new species is characterized by the following combination of characters : female body length of about 6.6 mm; cuticular pilosity restricted to the anterior portion of the body; female genital tract having a long vagina divide d into a thick-walled, muscular distal region followed by a thin-walle d vaginal chamber, vulval flap present; vaginal diverticulum absent; f emale tail with a markedly salient posterior anal lip; male spicule ti ps surrounded by a cuticular membrane; three pairs of post-cloacal pap illae located subdorsally or laterally as opposed to subventrally. Sca nning electron micrographs of the cervical region and female tail regi on supplement the description.