. Report of the Canadian Arctic Expedition 1913-18. Scientific expeditions. 36 K Canadian Arctic Expedition, 1913-18 Anterior antennae 9-jointed, the 8th joint very small and a constant char- acteristic (Fig. 51). Mouth-parts normal; the first maxilliped is clawed like the second, its claw being longer and more powerful than that of mp2; the basal joint of mp 1 has three inner setigerous lobes of which the proximal was observed with a single long thick soft seta, the other two having more than one seta at their Fig. 51. Dactylopusia signata. Anterior antenna. The first thoracic legs a
. Report of the Canadian Arctic Expedition 1913-18. Scientific expeditions. 36 K Canadian Arctic Expedition, 1913-18 Anterior antennae 9-jointed, the 8th joint very small and a constant char- acteristic (Fig. 51). Mouth-parts normal; the first maxilliped is clawed like the second, its claw being longer and more powerful than that of mp2; the basal joint of mp 1 has three inner setigerous lobes of which the proximal was observed with a single long thick soft seta, the other two having more than one seta at their Fig. 51. Dactylopusia signata. Anterior antenna. The first thoracic legs are like those of D. thisboides and D. neglecta; Ri 1 with a plumose si at the centre of the joint. The outer distal angles of Re 1 and 2 of the natatory legs are not conspicuously produced, as they are in D. thisboides. Second legs with setae as in D. thisboides; the ectal spinules of Re are coarser than those of Ri; B2 with slender se and triangular acute ental spur, a feature also found in D. thisboides; in p 2 Ri 2 the slender proximal si arises distad of the centre of the joint. Third legs: B2 with still slenderer se and very small ental spur. In the fourth legs the Ri 2 has only one si and this appears to be distinctive. In the natatory legs p 2 to p 4 the terminal seta of the outer ramus is longer than the entire ramus, in p 4 much longer. The se 3 has the same length as the Re 3 in p 2 and p 4, a little shorter than the Re 3 in p 3. The fifth legs appear to differ from D. thisboides in the interrelative lengths of the marginal spines, but the general correspondence is remarkably close (Fig. 52).. 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 Canadian Arctic Expedition (1913-1918). Ottawa, F. A. Acland, Printer to the King
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1919
