Archive image from page 178 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe1517dani Year: 1898 HYDROIDA II 173 Bonneviella grandis (Alhnan) Broch. 1876 Campanularia grandis, Alhnan, Diagnoses of new Genera and Species, p. 259, pi. 12, figs. 2—3. 1899 La/oca giganlea, Bonnevie, Den norske Nordhavs-Expedition, p. 68, pi. 6, fig. 2. 1909 Bonneviella grandis, Broch, Hydroidenuntersuchungen, II, p. 198. The colonies form enormous upright and irregularly branched rhizocaulomes. From the tubes proceed hydrotheca stalks of differing length, often segmented, with
Archive image from page 178 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe1517dani Year: 1898 HYDROIDA II 173 Bonneviella grandis (Alhnan) Broch. 1876 Campanularia grandis, Alhnan, Diagnoses of new Genera and Species, p. 259, pi. 12, figs. 2—3. 1899 La/oca giganlea, Bonnevie, Den norske Nordhavs-Expedition, p. 68, pi. 6, fig. 2. 1909 Bonneviella grandis, Broch, Hydroidenuntersuchungen, 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: Thorshavu (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 Zoo m. 600 m poooffi. 2000m Fig. LXXXIX. Localities of Bonneviella grandis in the Northern Atlantic.
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