New records and morphological observations on three known species of plectidae and ironidae (Nemata: Adenophorea) From Pakistan

摘要

Two known species of the genus Plectus Bastian, 1865 and one known species of the genus Ironus Bastian, 1865 are reported for the first time from Pakistan. Brief descriptions and illustrations of Plectus tennis Bastian, 1865, P. perietinus Bastian,1865 and Ironus dentifurcatus Argo & Heyns, 1972 are given. The genus Plectus Bastian, 1865 was first reported by Shah & Chaudhary (1975) from Pakistan. Shahina et al, (2001) described a new species of Plectus as P. karachiensis and a new record, P. raabei Brzeski, 1963 from Pakistan. In a recent systematic survey of nematodes from sugarcane fields of Sindh, several specimens of free-living nematode were isolated. Amongst these were specimens of two known species of the genus Plectus viz., P. tenuis andP. perietinus Bastian, 1865 and one of the genus Ironus Bastian, 1865 viz., I. dentifurcatus that appeared to be new records from Pakistan. The genus Ironus Bastian, 1865 has been reported for the first time from Pakistan. Morphometric data, illustrations and brief descriptions of these nematode species are given.