Archive image from page 162 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 HVDROIDA II 155 would seem to be exclusively due to confusion with Ca?npanularia Johnstoni Alder (cf. Broch 1912 p. 51). The species belongs chiefly to the littoral region, especially its upper half, but may quite excep- tionally penetrate some way down into the abyssal. Within the waters investigated, Campanularia volubilis is one of the most common Campanulariida; it is but rarely found, however, out in the open sea regions, which must probably be understood
Archive image from page 162 of The Danish Ingolf-Expedition (1918). The Danish Ingolf-Expedition danishingolfexpe0507ingo Year: 1918 HVDROIDA II 155 would seem to be exclusively due to confusion with Ca?npanularia Johnstoni Alder (cf. Broch 1912 p. 51). The species belongs chiefly to the littoral region, especially its upper half, but may quite excep- tionally penetrate some way down into the abyssal. Within the waters investigated, Campanularia volubilis is one of the most common Campanulariida; it is but rarely found, however, out in the open sea regions, which must probably be understood as standing in connection with its bathymetrical character (fig. LXXX). The species is not uncommon in West Greenland waters, but on the east 200 m. 600m. 1000m. 2000m. Fig. LXXX. Thi' distribution of Campanularia volubilis m the Xorthern Atlantic. In the hatched regions a common although scattered occurrence is stated. coast of Greenland it has only been met with north of 760. Of the Iceland coasts, it seems to prefer the east and west; it is less frequent at the Faroe Islands, and is stated as being of common, though scattered occurrence round the British Isles and off the west coast of Norway. Campanularia verticillata (Linne) Lamarck. 175S Sertularia verticillata, Linne, Systema naturce, Ed. 10, p. 811. 1816 Campanularia verticillata, Lamarck, Histoire naturelle. vol. 2, p. 113. uec. 1907 Campanularia verticillata. Hickson and Gravely, National Antarctic Expedition, p. 23. Upright, stiffly built rhizocaulomes, from the numerous tubes of which the hydrotheca stalks proceed, arranged approximately in wreaths. The stalks exhibit distinct rings, which are most pronoun- ced near the origin, and nearer the hydrotheca; the stalk always terminates under the hydrotheca in a ball-shaped joint; the middle of the stalk is generally smooth. The hydrotheca is about twice as 20
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