. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. COPEPODA 203 teeth; the armature of the anterior and posterior surface is scarceh- different from that of S. globiceps. The third pair of legs is like those of the preceding species, but the outer-edge spinous lamina of the second basipodite is wanting, and the posterior surface of the third basipodite has a patch of strong spines, wanting in the second pair. The fourffi pair of legs is distinctly granular on the anterior sur- face, but has fairly long spines in a longitudinal area on the two inner segments in addition to th
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. COPEPODA 203 teeth; the armature of the anterior and posterior surface is scarceh- different from that of S. globiceps. The third pair of legs is like those of the preceding species, but the outer-edge spinous lamina of the second basipodite is wanting, and the posterior surface of the third basipodite has a patch of strong spines, wanting in the second pair. The fourffi pair of legs is distinctly granular on the anterior sur- face, but has fairly long spines in a longitudinal area on the two inner segments in addition to the granulation; on the posterior surface of the two distal outer segments as well as on the distal inner one a few short spines are observed; on the posterior surface of the second inner segment a transverse row of 8 long spines is found. The /^//'// /r^'^*/agrees fairly well with Scott's and Farran's description, but the articulation is very indistinct. The labrniii is comparatively slightly produced in front (PI. VII fig. 12 a). The arrangement of setae on the anterior surface is rather characteristic; in front a median group of fairly long bristles, 3â4 deep continued into a lateral group of a number of shorter hairs, extending laterally to in front of a posterior lateral group of densel)- placed hairs. In the middle, later- ally partlv fused with mentioned anterior group, a transverse series of comparatively few short setae. Add to this a marginal group of nu- merous bristles. The oral surface of the lahruvi (PI. VII fig. 12 b) shows some similarity to .S". validris^ and in a less degree to S. globiceps; the granular area around the first median circular spot is only small; the lateral marginal and the first lateral group form a fairly long oblique group, medially consisting of granules, and converging towards the second median circular spot; the following lateral groups are in the main like the structures in the preceding species. The arrangement of setae around the &
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1915
