Eudendrium album Nutting 1896

• Main Author: Calder, Dale R.
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Anthoathecata; Eudendriidae; Eudendrium; Eudendrium album; Arctic; Canada; Norway; Kattegat; Iceland; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5248499; https://zenodo.org/record/5248499

Eudendrium album Nutting, 1896 Figs. 1, 2 Eudendrium album Nutting, 1896: 146. Type locality. UK: Plymouth, Millbay Channel, on stones in shallow water (Nutting 1896: 146). Museum material. Kosterhavet, 58°53.030’N, 11°05.567’E, 140– 100 m, 10.ix.2010, biological dredge, R / V Nereus , one straggly colony with pedicels up to c. 10 mm high, without gonophores, ROMIZ B3919.— Kosterhavet, 58°53.367’N, 11°04.240’E, 90 m, 15.ix.2010, biological dredge, R / V Nereus , one sparingly branched colony, up to 8 mm high, on a polychaete tube, without gonophores, ROMIZ B3934. Remarks. Schuchert (2008b) included 19 species, excluding the problematic Myrionema multicornis (Allman, 1876), in his review of eudendriids from Europe. These were differentiated largely on the basis of nematocyst complement. Two small species of the genus Eudendrium Ehrenberg, 1834 were distinguished from others in having macrobasic euryteles scattered over the hydranth body. Thread coils of these nematocysts are oblique to the capsule axis in Eudendrium album Nutting, 1896 and parallel in E. simplex Pieper, 1884. The two also differ in gonophore type, with those of E. album being gonochoristic and those of E. simplex being hermaphroditic. Eudendrium simplex is known only from the Mediterranean, where it occurs on the sea grass Posidonia , while Eudendrium album is a typically boreal species extending northwards to Scandinavia and Iceland (Schuchert 2008b). Eudendrium album is reported here for the first time from the west coast of Sweden. The identification is based largely on its cnidome, comprising small heterotrichous microbasic euryteles and macrobasic euryteles (Figs. 2a– c). These are much as described in Schuchert’s (2008b) account of the species. Eudendrium capillare Alder, 1856, reported from the study area (Segerstedt 1889; Jäderholm 1909; Kramp 1935b; Jägerskiöld 1971), from Denmark (Kramp 1935b), and from the Oslofjord (Christiansen 1972), is similar but lacks macrobasic euryteles. For discussion of Myrionema multicornis , see Schuchert (2008b). Although reported from the Kattegat by Allman (1876), that location is unlikely to have been its place of origin. Reported distribution. West coast of Sweden.—New record. Elsewhere.—North Atlantic: from Norway to Galicia, Spain, and the Mediterranean Sea in Europe (Schuchert 2008b), and from the Gulf of St. Lawrence to Florida in North America (Calder 2004). : Published as part of Calder, Dale R., 2012, On a collection of hydroids (Cnidaria, Hydrozoa, Hydroidolina) from the west coast of Sweden, with a checklist of species from the region 3171, pp. 1-77 in Zootaxa 3171 (1) on page 6, DOI: 10.11646/zootaxa.3171.1.1, http://zenodo.org/record/5247704 : {"references": ["Nutting, C. C. (1896) Notes on Plymouth hydroids. Journal of the Marine Biological Association of the United Kingdom, new series, 4, 146 - 154.", "Schuchert, P. (2008 b) The European athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filifera Part 4. Revue Suisse de Zoologie, 115, 677 - 757.", "Ehrenberg, C. G. (1834) Beitrage zur physiologischen Kenntniss der Corallenthiere im allgemeinen, und besonders des rothen Meeres, nebst einem Versuche zur physiologischen Systematik derselben. Abhandlung der Koniglichen Akademie der Wissenschaften, Berlin, 1, 225 - 380.", "Pieper, F. W. (1884) Erganzungen zu \" Heller's Zoophyten etc. des Adriatischen Meeres. \" Zoologischer Anzeiger, 7, 164 - 169.", "Alder, J. (1856) A notice of some new genera and species of British hydroid zoophytes. Annals and Magazine of Natural History, series 2, 18, 353 - 362.", "Segerstedt, M. (1889) Bidrag till kannedomen om hydroid-faunan vid Sveriges vestkust. Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar, 14, Afdelning 4, 4, 1 - 28.", "Jaderholm, E. (1909) Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden. Kungliga Svenska Vetenskapsakademiens Handlingar, ny foljd, 45 (1), 1 - 124.", "Kramp, P. L. (1935 b) Polypdyr (Coelenterata) I. Ferskvandspolypper og goplepolypper. Danmarks Fauna, 41, 1 - 207.", "Jagerskiold, L. A. (1971) A survey of the marine benthonic macro-fauna along the Swedish west coast 1921 - 1938. Acta Regiae Societatis Scientiarum et Litterarum Gothobergensis, Zoologica, 6, 1 - 146.", "Christiansen, B. O. (1972) The hydroid fauna of the Oslo Fiord in Norway. Norwegian Journal of Zoology, 20, 279 - 310.", "Calder, D. R. (2004) Subtidal hydroids (Cnidaria) of Northumberland Strait, Atlantic Canada, with observations on their life cycles and distributions. Canadian Field-Naturalist, 117, 555 - 564. (Although dated 2003, this article did not appear until 2004)."]}