Turbicellepora faroensis Denisenko 2018, n. sp.
Turbicellepora faroensis n. sp. (Fig. 3; Table 2) Etymology. Alluding to the Faroe Islands where the species was first found. Material examined. Holotype: ZMUC-BRY-116, colony fragment on a polychaete tube, Stn 89, 60°31’6’’ N, 6°47’ W, 396 m, 22 July 1987, collected by detritus sledge. BIOFAR progr...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2018
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| Online Access: | https://doi.org/10.5281/zenodo.5958958 http://treatment.plazi.org/id/03B28785FFD6FF84FF7B588E6ED5FD64 |
| Summary: | Turbicellepora faroensis n. sp. (Fig. 3; Table 2) Etymology. Alluding to the Faroe Islands where the species was first found. Material examined. Holotype: ZMUC-BRY-116, colony fragment on a polychaete tube, Stn 89, 60°31’6’’ N, 6°47’ W, 396 m, 22 July 1987, collected by detritus sledge. BIOFAR program, RV Magnus Heinason , Faroese Fishery Investigations. Paratype: ZIN ‒ 1/50660, part of colony, Stn 470, 62°39’06’’ N, 5°42’72’’ W, 335 m, 22 July 1987, collected by heavy triangular dredge. BIOFAR program, RV Magnus Heinason , Faroese Fishery Investigations. Distribution. Colonies were found to the north and southeast of the Faroe Islands at the boundary of Boreal and Arctic water masses (Hansen & Østerhus 2000). Description. Colonies initially laminar, encrusting, later lumpy, forming patches 20 mm x 10 mm in siZe, white-cream if unbleached, encrusting polychaete tubes. In laminar part, autoZooids flattened in horiZontal plane, in lumpy part appearing slightly convex and semi-erect (Fig. 3a‒c). AutoZooids varying in shape, usually square or rectangular, separated by distinct sutures. Frontal shield thick, smooth, with sparse marginal areolar pores (Fig. 3b‒ c). Primary orifice suboval, wider than long, normally with wide, shallow U-shaped sinus (Fig. 3b‒d, f), occupying approximately half proximal border (Fig. 3d, f) and surrounded by a relatively high, flared peristome. A single suboral avicularium in non-ovicellate Zooids, very prominent, with columnar cystid fused to peristome; apical part inclined to orifice and directed laterally, with rostrum and mandible clearly visible (Fig. 3d‒e); base of cystid rather narrow, curved, bean-shaped or oval in cross-section; distal part of cystid forming a tall, spine-like umbo (often appearing broken). Mandible triangular, rostrum hooked; crossbar complete, lacking columella. Suboral avicularium originating from marginal areola; an additional communication pore sometimes present (Fig. 3f). Owing to its extreme convexity, cystid of suboral avicularium remaining visible ... |
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