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"Anobothrella antarctica ( Monro, 1939), new combination

 

(Plate 45)

 

 

Anobothrus antarctica Monro 1939, pp. 139-140, figs. 21, 22.

 

Anobothrus antarcticus, Hartman, 1966, p. 79.

 

 

New records:

 

?9:19 sta. 311 (2 fgms) ; 12: 8 sta. 437 (20) ;

 

12:17 sta. 432 (15) ; 13: 3 sta. 1082 ( 4) ; 13: 5 sta. 1084- ( 2) ;13:18 sta. 544 ( 1).

 

Discussion: The body consists of 15 thoracic and 12 abdominal setig­erous segments. Paleae are well developed. Branchial bases are pale; the anterior side of the base is covered with red spots, and a similar pigment covers thoracic segments along the parapodial bases and the ventrum. Branchiae are inserted on an erect membrane representing their fused bases; the styles are tapering; some are thicker, others slenderer, and all are papillated (Fig. A). Oral tentacles are short, clavate, covered with small papillae (Fig. B). Thoracic uncini are short and broadly rectangu­lar; they have teeth in two rows of larger ones (Fig. C) and a few shorter teeth more lateral (Fig. D). Abdominal uncini are smaller, with four teeth in a single row (Figs. F, F).

 

A Anobothrclla anttarctica is allied to A Anobothrus patagonicus (Kin-berg, 1867), as Monro (1939, p. 140) has suggested.

 

 

Distribution: Drake Passage, in 3911-4099 m; Bransfield Strait, in 267-835 m; Smith Orkney Islands, in 298-2621 m."

 

(Hartman, 1967)

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Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© National Museum of Natural History, Smithsonian Institution

Source: Antarctic Invertebrates Website (NMNH)

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