. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 164 CRUSTACEA MALACOSTRACA. VI. Description of ? with large marsupial plates, 5 mm. Body not very robust. Cephalon as long as the 3 first segments, hood projecting beyond peduncle of ant. 1. Metasome not setose at dorsal surface. Third metasome segment has under edge somewhat concave; hind corner has a long dentiform projection, and lateral side has 6 setae. Ant. 1 not very thick; flagellum has 5 joints, accessory flagellum 4 joints. Ant. 2 has fourth peduncular joint provided with several
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 164 CRUSTACEA MALACOSTRACA. VI. Description of ? with large marsupial plates, 5 mm. Body not very robust. Cephalon as long as the 3 first segments, hood projecting beyond peduncle of ant. 1. Metasome not setose at dorsal surface. Third metasome segment has under edge somewhat concave; hind corner has a long dentiform projection, and lateral side has 6 setae. Ant. 1 not very thick; flagellum has 5 joints, accessory flagellum 4 joints. Ant. 2 has fourth peduncular joint provided with several strong curved spines (and some plumose setae); fifth joint has one curved spine. Flagellum has 5 joints; the 3 first joints have distal end (ventral side) somewhat projecting. P. i-âp. 5 as in H. plumosa (Sars 1895, PI. 52), but p. 3âp. 4 a little heavier, especially 3.â4. joints. Also p. 6 is as in the said species, but second joint has hind edge somewhat concave (totally as in H. mucronata, Sars 1895, PI. 54 fig. 3). P. 7 has second joint provided with 4 small and 2 large serrations (specific name is an allusion to this character); dactylus very long, as long as the two pre- ceding joints combined. Urop. 3 has rather broad rami; inner ramus acute, as long as proximal joint of outer ramus; apical joint very short. Telson has broad rounded lobi, with one pair of small apical setae. Remarks. The species is extremely easily recog- nisable by the two large dentitions on second joint of p. 7. It is not excluded, that H. J. Hansen's specimen of H. mucronata from \V. Greenland (H. J. Hansen 1887, p. 87) really belongs to this species (see H. mucronata, above).. Fig. 48. Harpinia bidcntata. *i58. Harpinia crenulata (Boeck). (Fig. 49, IIâIV). Harpinia crenulata G. O. Sars 1895, p. 158, PI. 55 fig. 2. Stebbing 1906, p. 141. Chevreux, Mem. Soc. Zool. France, vol. 23, 1910 (1911), p. 189, PI. 10 figs. 14â15. Occurrence. The species was taken by the Ingolf at three stations. : 65°
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
