Stylocordyla borealis var. irregularis Hentschel 1914
Creators
Description
Stylocordyla borealis var. irregularis Hentschel, 1914
(Fig. 9E)
Stylocordyla borealis var. irregularis Hentschel, 1914: 55, pl. IV fig. 2.
The variety was described by Hentschel from Gauss Station, 66.0358°S 89.6333°E, depth 385 m (holotype ZMB 4840). It has the shape and skeletal structure of the North Atlantic species Stylocordyla borealis (Loven, 1868 as Hyalonema) (for locality and type data cf. above S. borealis var. acuata), but the ectosomal palisade consists of three types of spicules, microxeas, microstyles and curved microstrongyles. It appears only a minor difference, which remains to be further confirmed as more than spicular variation. For the time being I propose to recognize the variety as an Antarctic subspecies of the predominantly Arctic-boreal S. borealis, to be named Stylocordyla borealis subsp. irregularis Hentschel, 1914, and the Arctic-boreal subspecies to be named S. borealis subsp. borealis (Loven, 1868) (with junior synonym S. borealis subsp. typica Burton, 1934c, a.o. from Jackson Island, East Greenland, 73.9°N 20°W). Bergquist’s (1972: 130) record of S. borealis likely belongs to the present subspecies.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Stylocordylidae
- Genus
- Stylocordyla
- Kingdom
- Animalia
- Order
- Suberitida
- Phylum
- Porifera
- Scientific name authorship
- Hentschel
- Species
- irregularis
- Taxon rank
- variety
- Taxonomic concept label
- Stylocordyla borealis var. irregularis Hentschel, 1914 sec. Soest, 2024
References
- Hentschel, E. (1914) Monaxone Kieselschwamme und Hornschwamme der Deutschen S ¸ dpolar-Expedition 1901 - 1903. Deutsche S ¸ dpolar-Expedition, 15 (1), 35 - 141, pls. IV - VIII. [https: // www. biodiversitylibrary. org / page / 2117076]
- Loven, S. (1868) Om en marklig i Nordsj ˆ n lefvande art af Spongia. Ofversigt af Kongl. Vetenskaps-Akademiens F ˆ rhandlingar, 25 (2), 105 - 121. [https: // www. biodiversitylibrary. org / page / 32231588]
- Burton, M. (1934 c) Zoological Results of the Norwegian Scientific Expeditions to East-Greenland. III. Report on the Sponges of the Norwegian Expeditions to East-Greenland (1930, 1931 and 1932). Skrifter om Svalbard og Ishavet, 61 (1), 1 - 33. [https: // books. google. nl / books / about / Skrifter _ Om _ Svalbard _ Og _ Ishavet. html? id = aM 0 bAAAAMAAJ & redir _ esc = y]
- Bergquist, P. R. (1972) Deep water Demospongiae from New Zealand. Micronesica, 8 (1 - 2), 125 - 136. [https: // micronesica. org / sites / default / files / deep _ water _ demospongiae _ from _ new _ zealand _ bergquist _ p. r. _ - micronesica _ vol. _ 8 _ no. 1 - 2 _ dec. _ 1972 _ o. pdf]