Tubularia longstaffi Hickson & Gravely 1907
Tubularia longstaffi Hickson & Gravely, 1907 (Figs 6–8; Table 4) Tubularia longstaffi Hickson & Gravely, 1907: 14 –15, pl. 2 fig. 11. Material examined. Stn 71, 25 stems up to 55 mm high (NIWA 117482); Stn 72, six stems up to 60 mm high, without polyps (NIWA 117483); Stn 104, single stem 78...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2017
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| Online Access: | https://doi.org/10.5281/zenodo.4386774 http://treatment.plazi.org/id/C84B87CACC04FFA1E8DD00DF0B33F3D0 |
| Summary: | Tubularia longstaffi Hickson & Gravely, 1907 (Figs 6–8; Table 4) Tubularia longstaffi Hickson & Gravely, 1907: 14 –15, pl. 2 fig. 11. Material examined. Stn 71, 25 stems up to 55 mm high (NIWA 117482); Stn 72, six stems up to 60 mm high, without polyps (NIWA 117483); Stn 104, single stem 78 mm high, with gonophores (MNCN 2.03/531); Stn 105, 20 stems up to 110 mm high, most without polyps (MNCN 2.03/532); Stn 150, one stem 140 mm high (NIWA 117484); Stn 178, 19 stems up to 60 mm high, some without polyps, with gonophores (NIWA 117485); Stn 198, one stem 21 mm long, without polyp (NIWA 117486). Other material examined. Tubularia longstaffi Hickson & Gravely, 1907 (type material, Natural History Museum, London, Coel no. 1907.8.20.9): McMurdo Bay, Ross Sea, No. 6 hole, April 8th, 1903, 227 m. Description. Stem up to 140 mm high. Perisarc tube reaching base of polyp, yellow, transversally ringed (Fig. 6 A), relatively firm, becoming weak and translucent distally (Fig. 6 B). Tube diameter increasing distally, from ca. 250 µm basally to 1 mm distally. Coenosarc attached to inner side of tube, with about 14 similar longitudinal lines. Polyps 2–5 mm high and 2–5 mm in maximum diameter, with aboral crown of 11 to 20 filiform tentacles (about 5 mm in length) (Fig. 6 C), and oral crown of 30–32 filiform tentacles (ca. 1.5 mm in length) (Fig. 6 D). Fertile polyps with ca. ten unbranched blastostyles (ca. 1150 µm in length), each with ca. 17 gonophores (largest ca. 400 x 250 µm) (Fig. 6 B–D). Cnidome (Fig. 7) consisting of stenoteles in two size classes, two types of haplonemes and desmonemes. Measurements (in µm). Stn 178: Cnidome : stenoteles I [range 9.0–11.0 x 7.0–8.0, mean 10.0±0.7 x 7.7±0.4 (n=10); ratio, range 1.2–1.5, mean 1.3±0.1 (n=10)]; stenoteles II [range 11.5 x 11]; rounded haplonemes [range 13.0–15.0 x 9.0–11.0]; tear-shaped haplonemes [range 14.0–16.0 x 4.5–5.5, mean 14.4±0.6 x 5.1±0.3 (n=9); ratio, range 2.6–3.2, mean 2.9±0.2 (n=9)]; desmonemes [range 6.0 x 4.0]. Stn 150: Cnidome : stenoteles I, ... |
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