Archive image from page 272 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5bpt5a8daniuoft Year: 1899-1953 HYDROIDA II 121 Stifflv built, pinnate, dark-brown colonies with nndi\icled Ijranches. The stem, which is niono- siphonic, is divided up into irregular internodia, and has two single longitudinal rows of hydrothecse and two rows of alternating branches; there are three hydrothecce between two successive branches on same side of the stem, the lowest in the branch corner. The branches have two rows of very closely packed hydrothecse, the hydrothecc
Archive image from page 272 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5bpt5a8daniuoft Year: 1899-1953 HYDROIDA II 121 Stifflv built, pinnate, dark-brown colonies with nndi\icled Ijranches. The stem, which is niono- siphonic, is divided up into irregular internodia, and has two single longitudinal rows of hydrothecse and two rows of alternating branches; there are three hydrothecce between two successive branches on same side of the stem, the lowest in the branch corner. The branches have two rows of very closely packed hydrothecse, the hydrothecce in the single longitudinal rows have their oral parts alternately turned to either side, making a distinct approach to quadriseiial arrangement, and the branches thus be- come almost quadrilateral in section. The hydrothecse are small, entirely embedded, without any free distal part of the adcauline wall; the opening margin forms an adcauline sinus, in which the large opercular plate is attached. The hydrotheca opening is comparatively very large. 200 Tt. boom. looom. 2 0 00 m FiCT. LXIV. The occurrence of Abietinaria ()fusca in the Northern Atlantic (In British waters the data are somewhat vague, but note a rather common occurrence). The gonotheca; are set on the upper side of the branches. They are pear-shaped, with short stalks. Material: -'Ingolf' St. 55 63°33' N., i5°o2' W.; depth 316 fathoms, 5,9° The Faroe Islands: 7 miles N. by E. of Myggenses point, depth 57 fathoms 6 — N. by W. of Store Kalso, _ 60 — Deep hole at north point of Nolso, — 100 — 16 miles E. by S. of south point of Nolso, — So- ft is uncertain whether this species can be allowed to retain its place in the genus Abietinaria. 16 Tlic Ingolf-Expedition. V. 7.
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