title: Notes on Metaphiremultitheca (Chen, 1938) (Oligochaeta, Megascolecidae) recorded from Vietnam, with descriptions of two new species.
abstract: The paper deals with Pheretimamultithecamultitheca Chen, 1938 recorded from Vietnam (non Pheretimamultitheca Chen, 1938 now in Metaphire from Hainan Island). As a result, a new species, Amynthaserroneous sp. n., is revealed from materials which were previously misidentified as Pheretimamultithecamultitheca. The new species is obviously distinguished from other Amynthas species by multiple spermathecal pores lateroventral in intersegments 5/6/7/8/9, and presence of two pairs of crescentic genital markings in xviii. In addition, another new species, Amynthasnhonmontis sp. n., is described and easily recognized by multiple spermathecal pores ventral in intersegments 5/6/7/8 and three pairs of genital markings in xvii, xix and xx.
authors.affiliation: Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, No.18, Hoangquocviet Rd., Hanoi, Vietnam.
authors.forename: Anh D
authors.initials: AD
authors.lastname: Nguyen
authors.affiliation: Department of Biology, School of Education, Cantho University, Cantho City, Vietnam.
authors.forename: Tung T
authors.initials: TT
authors.lastname: Nguyen
keywords: Amynthas; Annelida; Pheretima; earthworm; new species; taxonomy