Ampharete goesi Malmgren, 1866

Ampharete goesi Malmgren, 1866 View in CoL

Figs 15 View Fig , 16 View Fig .

Ampharete goesi Malmgren, 1866: 364 View in CoL (type: not in any Swedish museum, probably lost (Holthe, 1986a); type locality: Spitsbergen; Augener, 1928: 778; Annenkova, 1929: 492, fig. 37; Zatsepin, 1948:150, table. XXXVII, 10; Pettibone, 1954: 317; Uschakov, 1955: 369, fig. 137Е; Hartmann-Schröder, 1971: 457; 1996: 494; Holthe, 1986 a: 40–41, fig. 12, map 11; Jirkov, 1989: 109, fig. 22. 6, 2001: 466–467.

MATERIAL: 53 samples (95 specimens). Supplement Table.

DESCRIPTION. Up to 50 mm long. Middle lobe of prostomium about three times longer than the width. The buccal tentacles almost smooth, covered with very small (no more than 1/5 of the tentacle diameter) poorly visible cilia. Paleal chaetae 13–21 on each side (10–23 according to Holthe, 1986a), much longer and thicker than the most developed notochaeta, directed forward they reach the level of the anterior margin of the middle lobe. Their tips ( Fig. 15E–G View Fig ) short-pointed (the tip often breaks off). The place of branchostyles attachment of the three branchostyles are located almost in a straight line, without a gap between in the middle, the fourth (3rd outside) behind the middle of the three; this branchophore clearly related to the notopodia TC2 (= CT6). A pair of small nephridial papillae caudal to the bases of the medial branchophores ( Fig. 15B View Fig ). Branchostyles cirriform smooth. 14 TC, 12 TU. 16– 18 AU. Neuropodia of the thorax, AU1 and AU2 tori, the rest — pinnuli ( Fig. 15C, D View Fig ). Abdomen with very small rudimentary notopodia, neuropodia with a short cirrus. Pygidium with two moderate-length lateral cirri and numerous low papillae. Notochaeta ( Fig. 15H View Fig ) widely equally bilimbate border, Thoracic uncini ( Fig. 16A, B View Fig ) with 2 vertical rows of teeth with 5 teeth in each, abdominal ( Fig. 16C View Fig ) similar, but the caudally number of rows in the upper part of the uncini increases to 3. The tube very similar to the A. finmarchica tube: thick, silty, often encrusted with foraminifera, fragments of shells or sea urchin needles, the wall thickness is several times smaller than the diameter of the inner hole.

RANGE ( Fig. 17 View Fig ). From the Barents to Japan Sea, probably circumpolar.