Caulleriella antarctica Hartman 1978
Caulleriella antarctica Hartman, 1978 Figure 19 Caulleriella antarctica Hartman, 1978:164–166, fig. 17; Rozbaczylo 1985: 151. Tharyx antarcticus: Blake & Narayanaswamy 2004: 1806, 1813 (in part). Material Examined. Antarctica, Weddell Sea, USCG Glacier Sta. 69-1, 24 Feb 1969, 74°28.1ʹS, 30°31.7ʹ...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2018
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| Online Access: | https://zenodo.org/record/3798598 https://doi.org/10.5281/zenodo.3798598 |
| Summary: | Caulleriella antarctica Hartman, 1978 Figure 19 Caulleriella antarctica Hartman, 1978:164–166, fig. 17; Rozbaczylo 1985: 151. Tharyx antarcticus: Blake & Narayanaswamy 2004: 1806, 1813 (in part). Material Examined. Antarctica, Weddell Sea, USCG Glacier Sta. 69-1, 24 Feb 1969, 74°28.1ʹS, 30°31.7ʹW, 513 m, holotype (USNM 46777) and 14 paratypes (USNM 46778); Sta. 69-2, 25 Feb 1969, 75°31ʹS, 30°08ʹW, 412 m (2, USNM 46781); Sta. 68-1, 06 Feb 1968, 70°07ʹS, 39°38ʹW, 650 m (8, USNM 46779); Sta. 68-5, 09 Feb 1968, 76°00ʹS, 55°00ʹW, 400 m (10, USNM 46780).— Weddell Sea, E of Antarctic Peninsula, R / V Polarstern, ANDEEP II (ANT XIX/4), Sta. PS 61/133-6, 07 Mar 2002, 65°20.18ʹS, 54°143.6ʹW, MUC, 1120 m (1, SMF 24907).— Ross Sea, McMurdo Sound, Ross Island, Cape Evans, coll. ca. 10 m in gravelly sand, scuba, by Stacy Kim, 1 specimen (USNM 1013671). Description. A small, threadlike species, holotype complete, 4.8 mm long, 0.2 mm wide for 33 setigers; one paratype 6 mm long, 0.2 mm wide for 43 setigers. Peristomium and first 3–5 setigers inflated with segments wider than long (Fig. 19 A–B), thereafter segments becoming longer, beadlike; posterior end tapering to narrow, blunted pygidium; a complete Weddell Sea specimen with one lobe on pygidial segment; Ross Island and ANDEEP II specimens with two distinct cirri (Fig. 19C). Body segments with noto- and neuropodia widely separated. Color in alcohol: light tan. Prostomium short, triangular, as wide at base as long (Fig. 19A), bluntly pointed on anterior margin, eyespots absent; peristomium elongate, about as long as wide, weakly divided into two rings (Fig. 19 A–B). Paired dorsal tentacles arising from medial position at posterior margin of peristomium; first pair of branchiae arising lateral and posterior to tentacles at border of peristomium and setiger 1 (Fig. 19B); second pair of branchiae on posterior margin of setiger 1 dorsal to notosetae; branchiae on following segments in a similar position. Notosetae of setigers 1–7(8) all long, thin capillaries, ca. 6–8 per ... |
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