Halisarca dujardini

• Published in: Frontiers in Marine Science
• Main Authors: Ereskovsky, Alexander V., Lavrov, Dennis V., Boury-Esnault, Nicole, Vacelet, Jean
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Chondrosida; Halisarcidae; Halisarca; Halisarca dujardini; Barents Sea; Bering Sea; kola peninsula; White Sea
• Online Access: https://doi.org/10.5281/zenodo.5626324; http://treatment.plazi.org/id/038A87FDFFDDFFD361C32626FCA1C4A4

Redescription of Halisarca dujardini type species (Figs. 2–23) Previous reviews. Lévi 1956; Bergquist 1996; Bergquist & Cook 2002. Halisarca dujardini Johnston, 1842 Synonymy. Halisarca dujardini Johnston, 1842: 192 –193; Lendenfeld 1889: 729–730; de Laubenfels 1948: 175–176; Lévi 1956: 184; Chen 1976: 113–139; Ereskovsky 1993: 8; Bergquist 1996: 24–27; Bergquist & Cook 2002: 1090–1091. Halisarca franz-schulzei Merejkowsky 1878: 27–36, Pl. I, fig. 1–6; Pl. II, fig. 9–15. Hymeniacidon dujardini Bowerbank 1866: 224. Halisarca sputum Topsent 1893: 38 –39. Original description. Halisarca dujardini , Johnston, 1842, p. 192. Type material. Holotype: presumably lost. Neotype: BMNH 1960.1.7.1—Black Rock, Brighton, English Channel (epizootic on algae, collected close to the type locality) (Bergquist & Cook 2002). Comparative material examined. Sponge specimens used in the revision of Halisarca dujardini were collected using SCUBA, in White Sea (Kandalaksha Bay, Chupa Inlet (66°17'32"N – 33°39'39"E), 3–5 m depth, from algae Fucus ramosus and Laminaria saccharina , July 2000–2004; in Barents Sea , Kola Peninsula, Dalnije Zelentsi (69°07'19"N – 36°03'21"E) 0.3–0.5 m depth, July, August 2003; in Bering Sea , Avacha Bay (52°46'32"N – 158°36'16"E) 10-11 m depth, October 18 2008; in Japan Sea the Gulf of Peter the Great near of the Marine Biological station “Vostok” (Marine Biological Institute of Russian Academy of Sciences) (42°54'N – 132°38'W) from rocks and boulders at a depth 0.4–4 m; in North Sea , Norway, Bergen (60°23'29"N – 5°13'46"E), June 2009, 6 m depth; in North Sea, Netherlands, Zeeland, Goese Sas (51°38'52"N – 3°48'0"E) 18 m depth, July, 2009; NE Atlantic , North Wales (53°14'6"N – 4°7'48"W) July 1988, 3 m. We also investigated histologically a piece of the neotype and a piece of Halisarca franz-schulzei Merejkovsky, 1879 from Zoological Institute RAN, St-Petersburg, Russia. Description. External morphology . Predominantly incrusting sponge, 0.3–12 mm thick, forming smooth crusts on shallow water hard ...