. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 196 COPEPODA inner and an outer longitudinal series were found (PI. VII fig. gd); the arrangement of hairs between and behind the serrulae was not studied in details. In the middle, between the labial lobes, a large median group of setae was found, which on each lobe is continued into two lateral series placed closelv to each other; more laterally, well separated from this system, a lateral row of shorter setae, starting from a basal group, was observed. The intestinal tract is anteriorly
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 196 COPEPODA inner and an outer longitudinal series were found (PI. VII fig. gd); the arrangement of hairs between and behind the serrulae was not studied in details. In the middle, between the labial lobes, a large median group of setae was found, which on each lobe is continued into two lateral series placed closelv to each other; more laterally, well separated from this system, a lateral row of shorter setae, starting from a basal group, was observed. The intestinal tract is anteriorly produced into a rather slender rostral coecal sac; posteriorly the wide stomach is attenuated, and is, somewhat in front of the abdomen, continued through a slight curvature into the straight intestine proper. fc?. vSize of specimen from Thor St. 180 was 3-84 mm.; anterior division 2-65; urosome 119 mm. The body is somewhat more slender than in the female, with rounded lateral corners of the well marked short fifth somite; the rostral filaments are scarcely different. The «wwA//e is almost half as long as the anterior division, and the comparative length of its somites is 23, 40, 34, 44 and 4 (Pi. \'III fig. 8c). The antennidae scarcely extend to the end of the furca; the number of free segments is scarcely different from that found in .S'. magmis, but the seg- ments 13 and 15 are parti}' fused with the ])receding ones, as the articular line is wanting behind; the measurements and tlie appendages are ver\ much like those of .S^. globiccps. The antennae and i/iandi- biilae are scarcely different from those of X magnus. The maxillulae are fairly well developed; the Le possesses 9 setae; the Li I has at least 8 rather delicate setae, the Li II has 2 setae and the Li III has 4 setae; the third basipodite has 4 setae; and the Ri 2 + 5 setae; the exopodite has as in the female 8 setae. The maxillae are fairly developed, with 4 setae in each of the four proximal lobes; the lobe V has
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
