Grubianella klugei can be up to 25 mm long. It can be found in the Norwegian Sea and around Svalbard at depths between 600 and 2000 meters.

Type locality

Arctic Ocean (79o26’N 107o48’E, 1073 m; 82o44’N 61o20’E, 1444 m; 80o32’N 9o55’E, 749 m; 81o26’N 41o53’E, 413 m; 82o04’N 38o46’E, 1017 m)

Key characters

Measurements: Up to 25 mm long.

Number of thoracic chaetigers, excluding paleae: 14

Number of thoracic uncinigers: 11

Number of abdominal uncinigers: 19–22.

Prostomium: Trilobed, middle lobe drawn out into horns; eyespots absent.

Mouth tentacles: Smooth.

Branchiae: Four pairs of branchia in two widely separated groups; within each group, two foremost branchiae in transverse row, two following branchiae in longitudinal row.

Paleae: Small with filiform tips.

Special features: All abdominal segments with rudimental notopodia.

Pygidium: With one pair of long lateral cirri and several small papillae.

Tube: Covered with mud and few foraminiferans.

Distribution

Norwegian Sea, Svalbard; 600–2000 m.

Similar species

The presence of prostomial horns, paleae and a long abdomen (19–22 uncinigers) makes it unlikely to confuse adult complete specimens of Grubianella klugei with any other Ampharetidae in Norwegian waters.

Sources

Holthe T (1986a). Polychaeta Terebellomorpha. Marine Invertebrates of Scandinavia 7: 1-192.

Khlebovich VV (1964). [Bristle Worms (Polychaeta) from the Northern Greenland Sea and the Region with Spitsbergen and Frantz-Joseph Land] (In Russian). Trudy Arctic and Antarctic Research Insititute 259: 167-179.

Personal observations, Alvestad T.