Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections Author Peña Cantero, Álvaro L. Author Horton, Tammy text Zootaxa 2017 2017-11-10 4347 1 1 30 journal article 31577 10.11646/zootaxa.4347.1.1 49a11228-6c4d-478f-b958-52610eaab951 1175-5326 1044772 176D72B0-0DD6-4D51-83CA-D47C2268A3CF Eudendrium sp. Material examined. 9752#1 , a stem 75 mm high, with gonophores. Description. Stem polysiphonic, 75 mm high. Branching irregular, with branches up to third order. Branches short, up to 15 mm long, directed upwards. Most branches monosiphonic; only the longest with a proximal stolon for a short distance. Perisarc smooth. Polyps badly preserved. Female gonophores mature, distributed along pedicel. Cnidome consisting of larger (17.5– 19 x 7–8 µm) and smaller (7.5 x 4 µm) microbasic euryteles. Remarks. The available material prevents us from providing a confident identification. The polyps are in poor condition, making it impossible to ascertain whether the larger nematocysts have any particular distribution pattern. Additionally, there is no sign of gonozooids, the female gonophores are mature and already deprived of spadix. Ecology and distribution. The material studied was collected at depths between 1007 and 1042 m in Porcupine Seabight; gonophores in April.