Ampharete baltica can be up to 18 mm long. It can be found along the entire Norwegian coast and Svalbard at depths between 5 and 77 meters.
Baltic Sea, south of Torhamn, 55°50´N 16°05´E, 61 m.
Measurements: Up to 18 mm long.
Number of thoracic chaetigers, excluding paleae: 14
Number of thoracic uncinigers: 12
Number of abdominal uncinigers: 12
Prostomium: Trilobed; one pair of eyespots.
Mouth tentacles: Papillose.
Branchiae: Four pairs of branchiae in two groups separated by distance equal to about one branchial base diameter; three branchiae in each group in transverse row, fourth branchia behind the middle one of the three; branchial bases on each side fused.
Paleae: Long with filiform tips, 6–10 chaetae on each side.
Special features: None.
Pygidium: With two long lateral cirri and several long cirriform papillae.
Tube: Thin layer of organic secretion incrusted with a layer of mud.
Entire Norwegian coast and Svalbard; 5–77 m (Holthe 1986a).
Holthe T (1986a). Polychaeta Terebellomorpha. Marine Invertebrates of Scandinavia 7: 1-192.
Personal observations, Alvestad T.