. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HVHROIDA II 173 Bonneviella grandis (Allman) Broch. 1876 Campanularia grandis, Allman, Diagnoses of new Genera and Species, p. 259, pi. 12, figs. 2—3. 1899 La/oca gigantea, Bonnevie, Den norske Nordhavs-Expedition, p. 68, pi. 6, fig. 2. 1909 Bonneviella grandis, Broch, Hydroidenuntersnchungen, II, p. 198. The colonies form enormous upright and irregularly branched rhizocaulomes. From the tubes proceed hydrotheca stalks of differing length, often segmented, with a spherical swelling immediately below the hydrotheca. The latte


. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HVHROIDA II 173 Bonneviella grandis (Allman) Broch. 1876 Campanularia grandis, Allman, Diagnoses of new Genera and Species, p. 259, pi. 12, figs. 2—3. 1899 La/oca gigantea, Bonnevie, Den norske Nordhavs-Expedition, p. 68, pi. 6, fig. 2. 1909 Bonneviella grandis, Broch, Hydroidenuntersnchungen, II, p. 198. The colonies form enormous upright and irregularly branched rhizocaulomes. From the tubes proceed hydrotheca stalks of differing length, often segmented, with a spherical swelling immediately below the hydrotheca. The latter are twice to three times as long as broad, swollen for the lower third part, somewhat narrower above, with expanded margin; in transverse section, the hydrotheca is circular below, oval nearer the aperture; the aperture itself is as a rule somewhat asymmetrical, the margin quite smooth. The basal cavity is small, bounded at the top by a quite thin diaphragm. The gonothecae proceed from the tubes of the stem; they are more or less closely set, and occur scattered about all over the colony. The gonothecae are egg-shaped to spindle-shaped with six to eight longitudinal ribs and a short, narrow trumpet-shaped neck. Material: Iceland: 64°i7,5' N., i4°44' W., depth 75 meters 5°i2 The Faroe Islands: Thorshavn (depth not stated). The genus Bonneviella includes several species from the northern Pacific, for the further de- scription of which we are indebted to Nutting (1915 p. 95). One of these species is Bonneviella. 0$i,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ingolf (Cruiser); Danish Ingolf-Expedition (1895-1896). Copenhagen : H. Hagerup


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