Heliodoma goesi Silen 1942
Heliodoma goesi Silén, 1942a (Fig. 15; Table 15) Heliodoma goësi Silén, 1942a: 2, fig. 2, pl. 1, figs 3, 4. Setosellina goesi : Lagaaij 1963: 172, pl. 2, fig. 1. Material examined. Lectotype SMNH-Type-1892a [designated here (Fig. 15A, B); this specimen was illustrated in Silén (1942a, pl. 1, fig. 4)...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2023
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| Online Access: | https://doi.org/10.5281/zenodo.10248897 http://treatment.plazi.org/id/4B6E902EFF8AFFB1FF46FAB61DFBFBB2 |
| Summary: | Heliodoma goesi Silén, 1942a (Fig. 15; Table 15) Heliodoma goësi Silén, 1942a: 2, fig. 2, pl. 1, figs 3, 4. Setosellina goesi : Lagaaij 1963: 172, pl. 2, fig. 1. Material examined. Lectotype SMNH-Type-1892a [designated here (Fig. 15A, B); this specimen was illustrated in Silén (1942a, pl. 1, fig. 4)], Caribbean Sea, Virgin Islands, West Indies; depth 366–549 m. Leg. A. Goës 1869. Paralectotypes SMNH-Type-1892b (Fig. 15C, D), c (Fig. 15E–I), and d (Fig. 15J), same details as lectotype. Paralectotypes SMNH-Type-1892e-j (not figured). Other species material for comparison: Heliodoma implicata Calvet, 1906 SMNH-128026 and SMNH-128027 (Fig. 16E–G; see also Silén 1942a, pl. 1, fig. 2), including two colonies each; North Atlantic Ocean, Sao Miguel, off Vila Franca do Campo, Azores. Gravel with clay. Leg. Josephine Expedition 1869, station e35-42. SMNH-127828 (Fig. 16A–D; see also Silén 1942a, pl. 1, fig. 1), one colony; North Atlantic Ocean, Sao Miguel, off Vila Franca do Campo, Azores. Gravel and volcanic rocks. Leg. Josephine Expedition 1869, station e2-10. Description. Colony encrusting substrates less than 2 mm in diameter (colony size: 1.099 –1.491 mm long by 1.057 –1.450 mm wide; L/ W 0.77 –1.23; N 10), S-shaped (Fig. 15A), flat, including 10–16 autozooids in addition to the ancestrula; in some colonies the peripheral zooids growing beyond the substrate to a limited extent, without enveloping the underside (Fig. 15A, C, J). Ancestrula elliptical, budding one distolateral vibraculum and two autozooids, one distal and the other distolaterally at a right angle from each other, giving origin to two concentric clock-wise spirals of zooids and associated vibracula (Fig. 15A, C, E); ancestrula, 258–280 µm long by 185–230 µm wide (measured from the gymnocystal rim, gymnocystal boundaries undefined) with the frontal surface occupied almost entirely by the oval opesia (230–270 µm long by 170–185 µm wide); first budded zooids 280–335 µm long by 180–230 µm wide including the gymnocyst (230–300 µm long by 180–210 µm wide if ... |
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