. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 126 COPEPODA Le of which has 5 setae, while its Li has 7 setae. The muxilhdac are scarcely different from those described in E. curHcauda\ the maxillae agree in general shape (cf. fig. 311 PI. IV), but the setae of the four proximal lobes are poorly developed, while the fifth lobe has a long, soft, somewhat contorted sensory seta in addition to one fairly slender and one very short of usual structure; the inaxillipeds are as usual more slender than in the female. The first pair of legs is as usual well distinguished from tha


. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 126 COPEPODA Le of which has 5 setae, while its Li has 7 setae. The muxilhdac are scarcely different from those described in E. curHcauda\ the maxillae agree in general shape (cf. fig. 311 PI. IV), but the setae of the four proximal lobes are poorly developed, while the fifth lobe has a long, soft, somewhat contorted sensory seta in addition to one fairly slender and one very short of usual structure; the inaxillipeds are as usual more slender than in the female. The first pair of legs is as usual well distinguished from that of the female; the first and the second outer segments are marked off from each other by a small incision, proximally to which the short, at base swollen, Se is found; the Se of Re II is short and moderately slender; the position of b the glandular pores in the outer margin / \ of Re II and III is as in the female. The third pair of legs differs by the better developed accessory tooth of the Se Ri I, and the fourth pair by the smooth inner margin of the second basipodite. Th&Ji/th pair of legs is much longer than the abdomen, and extends almost to the end of the furcal setae; both legs are very similar to those of E. 1/1 fs- sinensis (text-figs 32 c—d); the processes on the margins of the rami of the right leg are slightly different from those of the mentioned species. The right endo- podite seems to be wanting; the right exopodite is terminated by three some- what hirsute processes (cf. text-fig. 32 d), of which the first is hook-shaped with three teeth, the second is flat and rounded, while the third one is slightly hook-shaped without serrations. Y S (St. V). Size of female from Thor St. 88 478 mm.; anterior division 3-91 mm.; nrosome 0-87 mm. The shape of the body is practically like that of the adult female with the usual differences in the shape of the abdomen; triangular teeth are found along the hinder margin of somites II—III. The only difference of importanc


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1915