Kirkegaardia olgahartmanae Blake, 2016, new species
Kirkegaardia olgahartmanae new species Figures 34–36 Tharyx sp. Hartman 1967: 230. Material examined. Antarctica, East Antarctic Peninsula, Larsen Ice Shelf A Area, Greenpeace Trough, RVIB Nathaniel B. Palmer Cruise 2000-03, Sta. 0 4, 64°49.209′S, 060°32.033′W, 668 m, 16 May 2000, Smith McIntyre gra...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2016
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| Online Access: | https://zenodo.org/record/5612250 https://doi.org/10.5281/zenodo.5612250 |
| Summary: | Kirkegaardia olgahartmanae new species Figures 34–36 Tharyx sp. Hartman 1967: 230. Material examined. Antarctica, East Antarctic Peninsula, Larsen Ice Shelf A Area, Greenpeace Trough, RVIB Nathaniel B. Palmer Cruise 2000-03, Sta. 0 4, 64°49.209′S, 060°32.033′W, 668 m, 16 May 2000, Smith McIntyre grab, coll. J.A. Blake, holotype (LACM-AHF Poly 8939); Sta. 0 7, 64°43.523′S, 060°045.771′W, 839 m, 18 May 2000, coll. J.A. Blake, 4 paratypes (LACM-AHF Poly 8940); Sta. 22, 64°46.632′S, 060°21.557′W, 868 m, 20 May 2000, coll. J.A. Blake, 2 paratypes (LACM-AHF Poly 8941).— West Antarctic Peninsula, Bransfield Strait, Eltanin Sta. 430, 62°38′S, 59°37′W, 0 7 January 1963, 681 – 1409 m, 20 specimens (USNM 56084); R/ V Polarstern, Cruise ANT XV/2, Sta. MIC 55, 62°16.45′S, 57°35.20′W, 8 Dec 1997, 1940 m, coll. H. Sahling, 3 specimens, (ZMH P-27816); Sta. MIC 86, 62°16.70′S, 57°34.90′W, 18 Dec 1997, 2000 m, coll. H. Sahling, 1 specimen (ZMH P-27817); R/V Polarstern, Cruise ANT-XXII/3, ANDEEP III, Sta. 152-2, multicore, 62°19.95′S 57°54.00′W, 1996 m, 23 March 2005, 6 specimens (ZMH P-27818); Sta. 152-4, multicore, 62°19.98′S, 57°54.00′ W, 2000 m, 23 March 2005, 9 specimens (ZMH P-27819). Description. A moderate sized species, holotype from Larsen Ice Shelf Area complete, 10 mm long, 0.6 mm wide for 40 setigerous segments; specimens from ANT XV/2 and Eltanin collection larger, up to 19.8 mm long, 0.9 mm wide across anterior setigers, 1.1 mm wide across ovigerous segments, 0.8 mm wide across narrow posterior end, for approximately 75 setigers. Entire body coiled with largest specimens forming a distinct twisted spiral (Fig. 35 A), with shape likely due to habitus position in mud ball within which worms live. Color in alcohol: light tan with areas of dark brown pigment on lateral sides of peristomium and some pigment inter-segmentally outlining some parapodia, and patches elsewhere along body; some branchiae dark brown; dorsal tentacles not pigmented. Pre-setigerous region as long as wide, together with thickened first four to ... |
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