Abstract
Dorylaimoides alborzicus sp. n. is described. Characteristics of the new species include a lip region separated from the rest of body by a sharp constriction, 1.1-1.3 mm long body, 10-11 um long odontostyle dorsal line and 8-10 um long odontostyle ventral line, 15-16 urn long arcuate odontophore, anterior uterine sac 37-61 um long (1.1-1.7 times corresponding body width), female tail straight to ventrally bent, elongate conoid with rounded terminus and 46-62 um long and males with 31-35 um long spicules, 5-6 ventromedian supplements and ventrally bent tail, 39-60 um long. An updated identification key to all the valid species of Dorylaimoides, as well as a table of data for the species not included in the study by Pena Santiago and Peralta (1997b) is given.
NSTL