. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HYDROIDA II 121 Stiffly built, pinnate, dark-brown colonies with undivided branches. The stem, which is mono- siphonic, is divided up into irregular iuternodia, and has two single longitudinal rows of hydrothecae and two rows of alternating branches; there are three hydrothecae 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 hydrothecae in the single longitudinal rows have their oral parts alternately turned to eithe
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. HYDROIDA II 121 Stiffly built, pinnate, dark-brown colonies with undivided branches. The stem, which is mono- siphonic, is divided up into irregular iuternodia, and has two single longitudinal rows of hydrothecae and two rows of alternating branches; there are three hydrothecae 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 hydrothecae in the single longitudinal rows have their oral parts alternately turned to either side, making a distinct approach to quadriserial 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 ,,, 2 00 m. — - - - boom. ._ .... loooffi. .. _ . 2 ooo m. Fig. 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 o-onothecce are set on the upper side of the branches. They are pear-shaped, with short stalks. Material: "Iugolf" St. 55 63°33' N., i5°o2' W.; depth 316 fathoms, 5,9° The Faroe Islands: 7 miles N. by E. of Myggenaes 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, — 80 — It is uncertain whether this species can be allowed to retain its place in the genus Abietinaria. The Ingolf-Espedition. V. 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).
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscientificexpedition
