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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36 CRUSTACEA MALACOSTRACA VIII (AMPH1PODA IV) 100° t>. 90° 60" ! )° t0° 30° 20°10° 0° 10° £0° 30° W 50* 60" 70° ,§> '- r~- -
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Chart VI. • Distribution oi Unciola crassipes, O U. petalocera. (Hansen: "cornu frontale sat longum"), covers from about ljs to about 1/i of the length of first joint of antenna 1. Under rostrum is a notch, and then a rather high epistomal plate follows (Fig. 26,C). Lateral lobes of head truncate, much broader than in V. laticornis. Epimeral plates of metasome have hind margins rounded; lower hind corner in plate 1 almost rectangular, without, tooth, in plate 2 with a small tooth, and in plate 3 with a somewhat larger tooth with a small sinus above. Antenna 1, flagellum in length equal to peduncle, about 25 joints; accessory flagellum has 4 joints-4- the minute apical joint. Antenna 2. 3rd joint almost as long as and a trifle broader than next joint: flagellum has about 17 joints. Pereiopod 1, hand differs a little from Hansen 1. c, in that the tooth on palm is nearer to finger hinge than in H.'s figure, and not with fore and hind edges symmetrical, but with apex turned toward ringer hinge. Pereiopods 2-7 agree fairly well with U. lati- cornis (fig. 25). Uropod 1, peduncle twice as long as rami which rathei few spines (outer ramus, on outer edge 4, on inner edge 2). Uropod 2. peduncle twice as long as rami: outer ramus has on outer edge 2(3), on inner edge 2 spines; inner ramus on outer edge 1. on inner edge 3 spines. Uropod 3, peduncle some- what triangular, longer than broad; outer ramus ovate, half the length of peduncle, with 3-4 spines and about 7 setse; inner ramus shorter and narrower than outer, with 2-3 terminal spines and two seta1: it is articulate, but has no muscles. As regards inner ramus Hansen writes (1. c, p. 166) "ramo interior* non a pedunculo membrana articulari separato, parvo", and (p. 167, Danish), "in U. crassipes inner ramus is distinct, but not separated by an articulation from peduncle". Description of $ with marsupium, 11 mm ($ was hitherto not described). Antenna 1, the two proximal joints of peduncle subequal in length, third joint in length ' 3 of second joint; flagellum as in j. Accessory flagellum has 5 joints -4- the minute apical joint. Antenna 2 not heavier than antenna 1, and third and fourth joints of peduncle cylindrical, not with lamellar ex- pansion as in $; fifth joint a trifle shorter than fourth which is about twice the length of third joint; flagellum not much longer than fourth joint of peduncle, 14-articulate. Pereiopod 1, 5th joint much larger than in <$; also 6th joint differs, in that process defining palm is lower, but much broader than in $, and apically with a spine, and also tooth near finger hinge is lower and broader. Pereiopods 2-7 not differing from $. There are 5 pairs of marsupial plates: very large and oval in pereiopods 2-5, but narrow and short (- not broader and not much longer than gills -) in prp. 6. Other characters not different from £. This species is characterised by the following features: lateral lobes of head very broad, apically truncate; antenna 1, peduncle with a few hairs, but without spines, and accessory flagellum has

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