Some known species of the genera Mononchus Bastian, 1865 and Mylonchulus (Cobb, 1916) Altherr, 1953 (Nematoda: Mononchina) from Semnan province, Iran

Resumo

Six known species of mononchids belonging to the genera Mononchus Bastian, 1865 and Mylonchulus (Cobb, 1916) Altherr, 1953 are described from Iran, viz. Mononchus aquaticus Coetzee, 1968; M. pulcher Andrássy, 1993; M. truncatus Bastian, 1865; Mylonchulus brachyuris (Bütschli, 1873) Altherr, 1953; M. paitensis Yeates, 1992 and M. sigmaturus (Cobb, 1917) Altherr, 1953. Mononchus pulcher and Mylonchulus paitensis are new records for the country while the former species is found and illustrated for the first time after its original description. Identification keys for the Mononchus and Mylonchulus species which have so far been reported from Iran are also given.