Loof 1993. On the status of Mylonchulus incurvus Cobb, 1917 and M. subtenuis Cobb, 1917, with redescription of M. sexcristatus (Merzheevskaya, 1951), description of M. inflatus n. sp. and comment on the genera Paramylonchulus Jairajpuri & Khan, 1982 and Pakmylonchulus Khan & Sayeed, 1987 (Nematoda: Mononchina). Nematologica, 39(2) 1993: 153-176