. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. COPEPODA 237 Description. f$. Size of female from Tlior St. 99 was 5-19 nun.; anterior (Hvision 4-15 mm.; urosome 1-04. Farran's specimens measnred 4-5â5-1 mm. The .shape of the body is in the main like that of A', borealis. The first and fifth somites, but especially the fifth, are well marked in front ( 77a); the lateral corners are produced into a small tooth. The abdoDicii^ which is one fonrth as long as the anterior , has a slightly prodnced genital somite, and a di
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. COPEPODA 237 Description. f$. Size of female from Tlior St. 99 was 5-19 nun.; anterior (Hvision 4-15 mm.; urosome 1-04. Farran's specimens measnred 4-5â5-1 mm. The .shape of the body is in the main like that of A', borealis. The first and fifth somites, but especially the fifth, are well marked in front ( 77a); the lateral corners are produced into a small tooth. The abdoDicii^ which is one fonrth as long as the anterior , has a slightly prodnced genital somite, and a distinct receptacnlnm seminis; along the hinder margin of somites IIâ\\ a striated seam is found; the comparative length of the first three abdominal .somites and the furcal rami is 18, 12, 9 and 8. The aufoDuilac extend to the end of the fourth thoracic tcrgite, and consist of 23 segments; the number of "^-Esthetasken" is like that of C. cliclifcr\ a proximal seta was found in segments 12, 14, 16 and 18, but not in segments 15 and 17; the posterior seta of segment 24 is placed in the middle of the segment, and extends just to the end of segment 25. Segment 24 is 1-2 as long as 23, and i'5 as long as 24, which is as long as segment 22. The exopodite of the ai/tc/n/ar is distincth' longer than the endopodite. The inandibitlae are scarcely different from those of -V. borralis^ while the iiiaxilhila(\ especially the distal portions, are more long and slender than in X. Grroii as well as borealis; the number, but not the shape, of setae in the maxilhilar is as in X. Grccm\ but the endopodite has only 9 setae. The ('?c'are like vSars' and Far- ran's figures; the lobe \' has in addition to 3 setae, of which the two are short and delicate, a serrated and distinctly curved spine, which is longer and stronger than that of the fourth lobe; the endopodite has 7 brush-shaped sensory setae in Xaniho- -,â ,.- â¢- rr^i -11 â J 11 1 J 1 ⢠calanus pingtiis
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
