. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALACOSTRACA. VI. 147. Fig- 44. Ampelisca compacta? disagreements from Norman's description (Norman has no figures). Below are given some remarks on the "Thor"-spec- imen compared with the de- scription of the type-specimen. Cephalon as long as the 3 first mesosome segments com- bined. Dorsal impression of first urosome segment has the same shape as in .-1. tenuicornis $ (Sars 1895, pi. 58 fig. 1), but there is no keel. P. 1 about as in A. tenuicornis, but fore corner o
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA MALACOSTRACA. VI. 147. Fig- 44. Ampelisca compacta? disagreements from Norman's description (Norman has no figures). Below are given some remarks on the "Thor"-spec- imen compared with the de- scription of the type-specimen. Cephalon as long as the 3 first mesosome segments com- bined. Dorsal impression of first urosome segment has the same shape as in .-1. tenuicornis $ (Sars 1895, pi. 58 fig. 1), but there is no keel. P. 1 about as in A. tenuicornis, but fore corner of coxal plate is somewhat more protruded, and hind corner has a free tooth (x in my fig.), but this tooth (which is also found in p. 2—p. 3) is very indistinct and not bent outward as in A. odontoplax (Sars 1895, pi. 61 fig. 2). P. 2 rather narrow, carpus twice as long as metacarpus, daetylus abt. 2/5 the length of metacarpus. P. 4: coxal plate has hind margin evenly curved, merus rather broad. On p. 5—p. 6 there is nothing to remark. P. 7: daetylus abt. 3/4 the length of metacarpus (Norman: half the length). Urop. 2: outer margin of outer ramus has not two spines and is not (?) minutely crenulated. Telson ovate, rather narrow, cleft almost to basis, each lobus has two spines at apex, but probably no dorsal spines. Distribution. The species is not found outside the two localities mentioned above. Genus Byblis Boeck. Byblis G. O. Sars 1895, p. 182. — Stebbing 1906, p. in. Four species are to be recorded from the area; only one of them was known from the area before. 139. Byblis Gaimardii (Kroyer). (Chart 23). Byblis Gaimardi G. O. Sars 1895, p. 183, PI. 64, — gaimardii Stebbing 1906, p. 113. Occurrence. The species was only two times taken by the "Ingolf". W. Greenland: (without number): Ameragdla in the bottom of Ameralik (0403' N.), mud, 22. 7. 1895. 2 small spec. E. of Iceland: St. 58. 64°25'N., i2°09'W. 397 m. Temp. °. 2 spec, (i ovig. 19 mm.). In add
Size: 1813px × 1379px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
