Ampharete kerguelensis McIntosh, 1885

Ampharete kerguelensis McIntosh, 1885 View in CoL s.str.

Figs 18 View Fig , 19 View Fig .

Ampharete kerguelensis McIntosh, 1885: 426 View in CoL , Pl. XLVII, 10; XXVIA, 22–24; Monro, 1939:138.

non Ampharete kerguelensis Monro, 1936: 173 View in CoL ; Day, 1967: 700; Hartman, 1966: 77; 1967:154 (= Ampharete sp. )

non Ampharete kerguelensis Augener, 1926: 223 View in CoL (=? Anobothrus glandularis View in CoL ).

TYPE MATERIAL. 2 syntypes: NHM 85.12.1. 314; type locality: 48°45′S 69°14′E 127 fms.

NON TYPE MATERIAL.ZMHU-19821, 49°50′ S, 69°33′ E., 150 m, previously identified by Monro (1939) as A. kerguelensis (25); ZIN 2/16252, 49° 38.7′S 70°43.7′ E 141 m, Ob 121 (1), previously identified by V.G. Averintsev as A. kerguelensis — non NHM 1936.2.8.2661–2663, South Georgia (4).

DESCRIPTION. Up to 33 mm long. The middle lobe of the prostomium obtusely rounded. Eye spots on the prostomium absent. Buccal tentacles pinnate. Paleal chaetae ( Fig. 18D View Fig ) about 5–12 on each side light yellow about the same length, but much thicker than the most developed notochaeta, directed forward reach the level of the anterior edge of the middle lobe of the prostomium or, at least, extend beyond its posterior edge. The places of attachment of the three branchophores in each group form an almost straight row, the fourth is located at the back between the inner and middle, this branchophore is clearly associated with the TC2 notopodia. The gap between groups of branchophores varies from almost absent to approximately equal to the diameter of the branchophore. Branchostyles of the usual structure for the family: smooth, irregularly transversely wrinkled; bent back, they reach 7–8 TC. At the inner corners of the bases of the inner pair of branchophores there are small nephridial papillae ( Fig. 18A View Fig ), the same papillae present behind the notopodia TC3. 14 TC, 12 TU. 13 AU. Rudimentary notopodia small, neuropodial cirri absent. Neuropodia of the thorax, AU1 and AU2 tori, the rest — pinnuli. Pygidium with two long lateral cirri and more or less pronounced numerous low papillae. Uncini ( Fig. 19 View Fig ) generally similar: TU1 uncini with 5 teeth in two rows, AU13 uncini with two rows near the prow and three at the top, 5–6 teeth in profile. The tube unknown.

REMARK. The AU number is not specified in the original description. Monro (1936) and Hartmann (1966) consider it to be characterized by the presence of 12 AU . The studied synthypes are two fragments. McIntosh cut off the front part of the larger specimen for the drawing, which was subsequently lost and only the last 5 TC and the abdomen consisting of 13 AU were preserved. The smaller specimen lacks the end of the abdomen. Specimens Monro (1939) and ZIN 2/16252 were also collected near Kerguelen Island and can be considered topotypes. Their paleal chaetae are identical to the syntype. The abdomen was preserved only in 4 specimen of Monro and 1 specimen of ZIN. All of them had 13 AU .

UNLIKELY REPORTS. Ampharete kerguelensis sensu Monro (1936) , Hartman (1966) and Day (1967) have 12 AU and thus refer to a different species. Hartman (1967) did not give description, but as Hartman (1966) is present in synonymy and due great depth (2119–2727 m) highly likely refer to a different species. Specimens NHM 1936.2.8.2661– 2663 are Ampharete sp. as they have 12AU.

RANGE. Because the species has been identified incorrectly too often, for sure it is known from lower sublittoral of Kerguelen Isl. only.