. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 1'OLYCJLUTA li foot and one fillet, viz. the ventral one. The seta? emerge from the ventral fillet, which surrounds them semilunaryly as a thin mem- brane. The aciculum is black and extends into the fillet. - The following feet are all biramous, the dorsal and ventral section rather deeply separated from each other. Eere there are three pedal lobes, the dorsal, median and ventral ligules, the median ligule situated in the dorsal part of the ventral ramous: the ventral one on its ventral ed
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 1'OLYCJLUTA li foot and one fillet, viz. the ventral one. The seta? emerge from the ventral fillet, which surrounds them semilunaryly as a thin mem- brane. The aciculum is black and extends into the fillet. - The following feet are all biramous, the dorsal and ventral section rather deeply separated from each other. Eere there are three pedal lobes, the dorsal, median and ventral ligules, the median ligule situated in the dorsal part of the ventral ramous: the ventral one on its ventral edge ; all three of them are very long and sharply pointed, almost cirrus-like. The dorsal fillet surrounds the setae as a fine semicircular membrane, and the dorsal aciculum is imbedded in it. In the ventral ramus the fillet is much broader, and the number of seta1, which it encircles, much larger. The Mack, ventral aciculum is imbedded in the ventral fillet and penetrates the skin with its tip. - The arrangement of the various lobes of the feet fully agrees with the description given by Heinen (I'.' 11) of Mlmgr. The arrangements of the lobes in one of the uniramous and one of the biramous feet are shown in the accompanying figure in accordance with Southern's (1921) illustration of this structure. o dc â \vf. :)df. ml O vc. 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); Københavns universitet. Zoologisk museum. Copenhagen H. Hagerup
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
