. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALACOSTRACA. V. 93 Body of the usual shape; I. urosome segment dorsally produced into a blunt process. Integuments with an extremely indistinct sculpture of irregular anastomosing striae. Head as long as the two first mesosome segments combined; lateral lobes of the usual form (e. g. H. serratiftes, fig. iS above). No traces of eyes. Ant. i with a little but distinct process at the distal end of i. joint of the peduncle; flagellum io-articulate. Accessory flagellum 4-articulate;
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALACOSTRACA. V. 93 Body of the usual shape; I. urosome segment dorsally produced into a blunt process. Integuments with an extremely indistinct sculpture of irregular anastomosing striae. Head as long as the two first mesosome segments combined; lateral lobes of the usual form (e. g. H. serratiftes, fig. iS above). No traces of eyes. Ant. i with a little but distinct process at the distal end of i. joint of the peduncle; flagellum io-articulate. Accessory flagellum 4-articulate; the proximal 3 joints in length = 1. joint in flagellum, the whole accessory flagellum in length = 2 first joints in flagellum. Ant. 2: peduncle as long as the whole of ant. 1, 4. joint i1/: time as long as 3. joint; flagellum 40-articulate. P. 1 abt. as in H. reticulatus (see below p. 95); 1. joint narrow. P. 2: metacarpus broad, abt. as in H. Holbolli (Sars 1895, PI. 21 fig. 2 p. 2 x). P. 3—p. 4 have very long dactyli, abt. 3/4 the length of metacarpus 2. joint in p. 5—p. 6 with very small, almost invisible teeth at the hind edge; on p. 7 they are a little greater, and the intervals are smaller. Dactyli of p. 5—p. 7 rather short. The process on 3. epimeral plate of the meta- some not very long, with blunt apex. On 1. urosome segment a very distinct, but blunt dorsal process (abt. as in H. propinquns, Sars 1895, PI. 21). Past pair of uropoda with very broad rami, outer ramus a little longer than the inner ramus; apical joint abt. '/4 as long as proximal joint. Telson with incision to abt. V3 of total length, not very narrow, probably without dorsal spines. Affinities. Of all known species it seems to be the nearest allied to H. serratipcs (see above), but differs i. a. as regards the narrower coxal plate in p. 1, the much more indistinct teeth on 2. joint in p. 7 and the somewhat deviating shape of 3. epimeral plate of the metasome. Although we would regard these differ
Size: 1967px × 1270px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
