error in Gerlach & Riemann, 1974 p 586: Oncholaimus brachycercus sensu Steiner, 1916 is not transferred to Pontonema , but to Paroncholaimus by De Coninck & Schuurmans Stekhoven, see p 51 (instead of p 151).
However, the genus Paroncholaimus is later synonymized with Pontonema.
De Coninck, L. A.; Schuurmans Stekhoven, J. H. (1933). The freeliving marine nemas of the Belgian Coast. II With general remarks on the structure and the system of nemas. <em>Mém. Mus. r. Hist. nat. Belg.</em> 58: 3-163. Available for editors [request] (look up in IMIS)