1 Department of Bioscience - Aquatic Biology, Department of Bioscience, Science and Technology, Aarhus University2 Tjärnö Marinbiologiska Laboratorium3 Department of Bioscience - Aquatic Biology, Department of Bioscience, Science and Technology, Aarhus University
A new species of the genus Protoglossus is described from the west coast of the Scandinavian Penin- sula. It lives buried in clay bottoms below the halocline where the salinity is at least 33–34 psu. Body small, esti- mated maximal length 1.5 cm. Collar broader than long, with a forward inclination. The thickest part is the collar region where it can be up to 1 mm in diameter. Proboscis colouration light pink to golden yellow; collar white with transversal yellow bands; branchial, hepatic and intestinal regions translucent pale yellow to golden yellow; brown intestine visible through the body wall. Proboscis groove extends through posterior half of proboscis. Nine to 17 pairs of gill openings, the size of the posteriormost suc- cessively smaller. It differs from the other European spe- cies, Protoglossus koehleri, in colouration, smaller size, fewer gill openings, body shape and proportions. It was sequenced (18S rRNA gene) and clustered within the family Harrimaniidae, with Saxipendium as its closest relative.