. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALAC08TRACA VIII (AMPH1P0DA l\ Fig. 19. Ischyrocerus nanoides .. one ol Hansi n's type specimens. As the length of accessory flagellum is a rather important specific character, I give the length ratio of accessory flagellum and first joint of flagellum in all species of the genus, established up to 1940 (according to Zool. Record, including the volume for L940). I. anguipes Kr. (incl. G. O. Sars), Stebbing, L906, p. 658; 2:3. I. assimilis (G. O. Sa^s), presen
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALAC08TRACA VIII (AMPH1P0DA l\ Fig. 19. Ischyrocerus nanoides .. one ol Hansi n's type specimens. As the length of accessory flagellum is a rather important specific character, I give the length ratio of accessory flagellum and first joint of flagellum in all species of the genus, established up to 1940 (according to Zool. Record, including the volume for L940). I. anguipes Kr. (incl. G. O. Sars), Stebbing, L906, p. 658; 2:3. I. assimilis (G. O. Sa^s), present paper p. 31, species no. 339; 1:3. /. brevicornis (G. 0. Sars), present paper p. 32. species no. 341; 1:1. /. brusilovi Gurjanova, present paper p. 32, species no. 342; 1:2. /. cariinitus Barnard. Ann. S. Afr. vol. 15, 1916, p. 266. fig.; 1:2. I. commensalis Chevreux, present paper p. 28, species no. 337; 1:1 /. cristatus Gurjanova, Rep. Japan Sea Hydrobiol. Exped. of the Zool. Inst, Acad. Sci. in 1934, pt, 1, 1938, , 403, figs.; "accessory flagellum 2-jointed", but length not noted. I. elongatus Gurjanova, 1938, , 404, figs.; "accessory flagellum 2-jointed", but length not noted. /. enigmaticus Gurjanova, Zool. Anz., vol. 108. 1934, p. 128, fig.; 1:1- /. gorgonia? Barnard, Ann. S. Air. Mus., vol. 32. 1910, p. 481, fig.; I have not had access to this paper. u. sp., present paper p. 28, species no. 336: 1:1. /. hoeki (Stebbing), '. = I. brusilovi (see above). /. hitipes Kroyer, Stebbing 1906. p. 660: 1:2. I. megacheir (Boeck), present paper p. 29, species no. 338; 1:1 or > 1:1. /. megalops G. O. Sars, present paper p. 32, species no. 340; 1:3. /. minutus G. 0. Sars. see /. anguipes (above). /. nanoides ( Hansen), present paper p. 27 species no. 335; 1 :2. /. pachlusovi Gurjanova, Zool. Anz., vol. 103. 1933, p. 126, ami I. tenuicornis (G. 0. Sars), Stebbing, L906, p. 660; 1:2. I. tuberculatum (Hoek)
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