Archive image from page 160 of The Danish Ingolf-Expedition (1921). The Danish Ingolf-Expedition danishingolfexpe0509ingo Year: 1921 Textfigs. 160—164. Cribrina spelsbergensis. Transverse sections of tentacles (figs. i6o, 161), of oral disc (fig. 162) and of sphinc- ters (figs. 163—164). (Fig. i6o spec, from St. 52 Olga-Exp.; figs. 161, 163 spec, from Vega-FIxp.; fig. 162 spec, from St. 67 M. Sars-Exp.; fig. 164 spec, from St. 41 Olga- Expedition). Fig. 163 pinnate and palmate type we may consider the sphincters of a specimen from the station 52 (Olga-Exp.) and of an individuum from New F
Archive image from page 160 of The Danish Ingolf-Expedition (1921). The Danish Ingolf-Expedition danishingolfexpe0509ingo Year: 1921 Textfigs. 160—164. Cribrina spelsbergensis. Transverse sections of tentacles (figs. i6o, 161), of oral disc (fig. 162) and of sphinc- ters (figs. 163—164). (Fig. i6o spec, from St. 52 Olga-Exp.; figs. 161, 163 spec, from Vega-FIxp.; fig. 162 spec, from St. 67 M. Sars-Exp.; fig. 164 spec, from St. 41 Olga- Expedition). Fig. 163 pinnate and palmate type we may consider the sphincters of a specimen from the station 52 (Olga-Exp.) and of an individuum from New Foundland. In the former there is a very thick main lamella, but not so long that we may regard the sphincter as palmate, in the latter the main lamella is thin at the base, but much expanded inwards and forming a thick irregular triangle. In the sphincter, reproduced on the textfig. 163, streaks of muscle meshes are seen in some places. Such mesogloeal streaks in the spliincters indicate that parts of the mesenteries have been sectioned. All endodermal spliincters as well as the endodermal muscles in common become mesogloeal at the moment when they break through the mesenteries. The ectoderm of the tentacles is high and contains numerous nematocysts and very numerous spiro- cysts. The size of the nematocysts in the tentacles and in the actinopharjmx and of the spirocysts in the tentacles is seen from the following table, in which also the number of tentacles and pairs of mesenteries and the distribution of the reproductive organs on the directives are stated. The Ingolf-Expedition. V. g.
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Keywords: 1900, 1920, 1921, americana, archive, arctic_ocean, biodiversity, blc, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896_, drawing, historical, history, illustration, image, ingolf_cruiser_, mblwhoi, mblwhoi_library, page, picture, print, reference, scientific_expeditions, vintage
