Gulenia monicae sp. n. Norwegian Sea, Gulen Dive Center. Holotype ZMMU Op-466, living specimen 34 mm length: A dorsal view B lateral view C ventral view; Paratype ZMMU Op-411, living specimen 24.5 mm length D dorsal view E details of cerata F jaw, SEM G details of masticatory process of jaw, SEM H radular teeth, posterior part, SEM I J reproductive system, light microscopy. Abbreviations: a anus am ampulla fgm female gland mass g gonad go genital opening nc continuous notal edge p penis ps penial sheath pvd prostatic vas deferens rsd distal receptaculum seminis rsp proximal receptaculum seminis. Scale bars: F = 300 μm; G, H = 30 μm. Photos and SEM images by T.A. Korshunova, A.V. Martynov.