File:The Danish Ingolf-expedition (1899-1953) (20839338001).jpg

Title: The Danish Ingolf-expedition
Identifier: danishingolfex3dpt13daniuoft (find matches)
Year: 1899-1953 (1890s)
Authors: Danish Ingolf-Expedition (1895-1896); Københavns universitet. Zoologisk museum
Subjects: Marine animals -- Arctic regions; Scientific expeditions; Arctic regions
Publisher: Copenhagen H. Hagerup
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: msn

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CKl'STACKA MAI.ACDSTHAl'A VIM I A MPIIIPODA IV I 15 It. pm.ri ma Chevreux (close to A', rust rata Bonnier; Baj oi Biscay, MHO 111). Chevreux, Bull. Inst. Monaco. No.'Jul. I!HI. p. I I. figs Chevreux, R6s. Camp. Sci. Monaco, vol.90, 1935 p. 1 lo. figs. ft, siboga Pirlot (close to ft. kergudeni Stebbing; 8 S, II7°E, L310m). Pirlot, Siboga-Exp., vol. 33d, 1934, p. 216, figs. ft. sp. (close to ft. Iirllcri (Boeck)). Schellenberg, Kurt her Zool. Res. Swed. Antarct. Exped. 1901 03 . . . edited by Sixten Bock, vol. 2, No. 6, Stockholm 1931, p. 173. 313. Rhachotropsis (kerguelenl Btebbing?) (Fig. 8). Rhachotropis kergudeni Stebbing, "Challenger", vol.29, 1888, Rhachotropis kergudeni Stebbing, Tierreich, vol. 21, L906, p. 349. Rhachotrofis kergudem Barnard, \nn 8. Afr. Mus., vol. I">. L916, p. 718. The B) wa e tablished bj Stebbing on two spec in probably male- Latei Barnard 1. c. recorded an ovigerous female; he writes thai it agrees with Stebbing'a males "in all re p<-< t;
Text Appearing After Image:
FiLr. 8. Rhachotropis (kergueleni?) $; "Ingolf" St. 35. 312. Rhachotropis aculeata (Lepechin). Rhachotropis aculeata G. 0. Sars, Crust, of Norway, vol. 1, 1895, p. 424, pi. 149. Rhachotropis aculeata Stebbing, Tierreich, vol.21, 1906, p. 348. Occurrence: 64°07' N, 11°12' W, 446 m, 2°5. "Ingolf" St. 4: 13-VI-1895. 2 spec- imens up to about 20 mm. 65°00'N, 11°16'W, 584 m, ~ 0°1. 'Ingolf" St. 59: 20-V-1896. 1 specimen about 35 mm. Though it is very abundant along the coasts of Greenland and Iceland (but not the Faroes) at depths from about 20-300 in, it is very rarely found at depths so great as the two above-named from the "Ingolf'-Expedition. The occurrences hitherto known from depths > 400 m are nearly all in the "Ingolf'-area and are as follows: NW. Greenland 77°17'N, 69°59'W, 930 m, -^ 0°4 (K. Stephensen, Meddel. om Gronl, vol. 79, No. 7, 1933, p. 12): North of Iceland 66°32'N, 18°50'W. 480 m, and East Iceland 63°25' N, 10°30' W, 505 m (K. Stephensen, Zool. of Iceland, vol.3, No. 26, 1940, p. 48); 40°59'N, 51°15' W, 1100 m, 3°7 (J. Grieg, Rep. Sci. "Michael Sars", vol. 5, 1931, p. 3). Distribution. Widely distributed in the Arctic with adjacent areas, probably circumpolar; for special localities see K. Stephen- sen, Tromso Mus. Skr., vol. 3, 1935-42, p. 287, for map see K. Stephensen, Zool. of Iceland, vol. 3. No. 26, 1940, p. 80. except the shorter antenna' and the slightly more dehiscent apices of the telson". Occurrence: 64°54'N, 55°10'W, 740 m, 3°8. "Ingolf" St. 27: l-VII-1895. 1 ovigerous $. 65°16' N, 55°05' W, 682 m, 3°6. "Ingolf" St. 35: 18-VII-1895. 2 $ with marsupium. Remarks on $ with large marsupial plates (but without marginal set*), about 12 mm ("Ingolf" St. 35). In the long rostrum, the dorsal armature of metasome segments 1-3 and uro- some segment 1, the serrate hind margin of metasome segment 3, the very small second joint of pereiopods 5-6. the. acute lower hind corner of second joint of pereiopod (6-)7, and the telson, this form is very close to R. kergudeni Stebbing (Stebbing's two specimens were probably males). Rostrum is only a trifle shorter than first joint of antenna 1 (regarding ft. kergudeni Stebbing says only that "the rostrum is very long and narrow, depressed between the upper antennae"). Eyes could not be found. Metasome segment 1 has a dorsal tooth, but no dorsal carina: metasome segments 2 and 3 and urosome segments have each a high dorsal carina ending in a large tooth. Epimeral part of metasome segment 3 dentate only along the lower two thirds, not also along the upper third. Antenna? 1 rather similar to Stebbinii's figure, but much shorter (Stebbing's spec- imens of It. kenjurleni were rj?): they are as long as head +3 (or 4) mesosome segments, reach a trifle beyond peduncle of an-

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