NEMATODES FROM ITALIAN SAND DUNES.1. THREE NEW AND ONE KNOWN SPECIES OF ENOPLIDA
AbstractThree new and one known species of Enoplida (Nematoda) are described and illustrated. Eurystomina vincxi sp. n. is characterized by the structure of the mouth cavity, with five rows of denticles and two teeth, of which the subventral anteriorly resembles an odontostyle, by the presence of a protruding spinneret in the tail, by the spicules shape and by the gubernaculums provided with a pointed dorsal apophysis. Trissonchulus dubius sp. n. is characterized by the very reduced female anterior genital tract, the convex-conoid tail with blunt terminus, the ventral opening of the caudal glands and by the gubernaculums shape. Trissonchulus provulvatus sp. n. is characterized by the reduced female anterior genital tract, the very anterior vulva, the shape of spicules and gubernaculums and the absence of ventral precloacal papillae. Enoplus schulzi Gerlach, 1952 is also described: for the first time the presence of ocelli in this species is reported.