. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. HYDROIDA II 79 apophyses and hydrocladia; here again we find the snpracalyeine sarcothecse particularly well devel- oped, in the same manner as over the apophyse, and more than on the normal cladial internodia; at the same time there is not the slightest indication of any such pattern as that which Nutting has taken for a sarcotheca. The abortive hydrotheca probably forms a parallel to the apophysal "mamelon" in Nemertesia and Polynemertesia, and would seem to throw some
. The Danish Ingolf-expedition. Marine animals; Marine animals; Hydrography; Hydrography; Scientific expeditions. HYDROIDA II 79 apophyses and hydrocladia; here again we find the snpracalyeine sarcothecse particularly well devel- oped, in the same manner as over the apophyse, and more than on the normal cladial internodia; at the same time there is not the slightest indication of any such pattern as that which Nutting has taken for a sarcotheca. The abortive hydrotheca probably forms a parallel to the apophysal "mamelon" in Nemertesia and Polynemertesia, and would seem to throw some light on its origin. There is considerable variation in the appearance of the hydrotheca; (fig. XL) especially owing to the fact that the abcauline keel and its prolongation vary very greatly both in length and breadth; the outgrowth may be" broad and blunt, or more slender, and running out to a point. It forms an incurvation in the wall of the hydrotheca; at its base, the hydrotheca is furnished with a sharply cut tooth, directed obliquely inward and forward, and between this and the internodium the edge shows. 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 Danish Ingolf-Expedition, 1895-1896; Wandel, C. F. (Carl Frederik), 1843-1930; Ingolf (Ship). Copenhagen, H. Hagerup
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectmarineanimals
