Hyalopomatus sp. nov. 3 Fig. 28G

Diagnosis.

Smooth white tube. Elongated operculum with distinctly differentiated endplate. Peduncle smooth, of same thickness as radioles, annulated distally, separated from operculum by a constriction. Five thoracic chaetigerous segments plus minute simple collar chaetae. Thoracic membranes short, ending at chaetiger 3. Collar high, trilobed, ventral lobe larger than lateral ones. Uncini rasp-shaped with very characteristic for the genus anterior peg made of two or more rounded lobes with shallow incision(s) in between. Apomatus chaetae absent. Abdominal chaetae in posterior chaetigers only, capillary with tip made of two rows of denticles.

Records.

3 specimens. Suppl. material 1: ops. 86, 97, 104 (AM).