A new and two first recorded species of mononchids (Nematoda: Mononchida) from Japan

Abstract

A new and two known species of mononchids are described and illustrated from Japan. Iotonchus miamaensis sp. n. has 3.2-3.5 mm long body: a = 44-50; c = 7.6-8.4: spicules = 127-138 11m; ventromedian supplements 12-13 in numbers, and is characterized by large and wide stoma with basal dorsal tooth, asymmetrical vaginal muscles, amphidelphic gonads and terminal spinneret. Clarkus sheri (Mulvey, 1967) Jairajpuri, 1970 and M,vlonchulus polonicus (Stefanski, 1915) Cobb, 1917 are described and illustrated with additional information.