A new species of Cyprideis is described and illustrated by scanning electron micrographs. Certain features of this form are basically new for Cyprideis and interesting from a general point of view: (1) the ontogenetical appearance of lateral nodes in as early an instar as A-5; (2) the concurrent presence of as many as eight lateral nodes in juveniles and seven in adults; and (3) sexual dimorphism and left-to-right asymmetry in the width of the anterior marginal zone.