PYCNOGONIDA. BG 
3. Nymphon brevitarse Kr. 
Nymphon brevitarse Krøyer, Kundsk. Pycnog., 1844, p. 115. 
— — Idem, Gaimard, Voy. Scand. Lappon., 1849, Pl. 36. Fig. 4, a-f. 
ze — Sars, Pycnogonidea, 1891, p. 61. Pl. V. Fig. 3, 3 a-g. 
Nymphon grossipes (Fabr.) Wilson, Syn. Pycnog. New-Engl., 1878, Pp- 491. P. p. 
I cannot follow Wilson, when he not only incorporates the AV. mrætum of Krøyer, but also 
the /V. brevitarse of the same author into the species WW. grossipes of O. Fabricius. 
Oecurrence. The Ingolf-stations are 95 and 96, in the middle of the Denmark Strait. The 
depths were 752 and 735 fath., and the bottom temperatures 2%1 and 17,2. 
Distribution. The species was formerly only known from Greenland (Krøyer), and one 
specimen from the straits of Matotschkin Sharr, on a depth of only 10—15 fath. 
4. Nymphon serratum G. O. Sars. 
Nymphon serratum Sars, Crustac. Pycnog., 1880, p. 471. 
— — Hoek, Pycnog. «Willem Barents», 1881, p. 16. Pl. I. Fig. 24—28, Pl. II. Fig. 20. 
— — Hansen, Kara-Hav. Pycnog., 1886, p.7. Tab. XVIIL Fig. 2, 2 a-c. 
— — Sars, Pycnogonidea, 1891, p. 95. Pl. X. Fig. 2, 2 a-h. 
Occurrence. The Ingolf-stations are 93, 94, and 127, the two first in the Denmark Strait, 
towards the coast of Greenland, the last one in the Greenland Sea, not far from the northern coast 
of Iceland. The depth was in the Denmark Strait 204 and 767 fath., in the Greenland Sea 
only 44 fath. 
Further it is found at the Zoological Museum from the Davis Strait: 65? 35' Lat. N. 542 50' 
Long. W., 80 fath. («Fylla», Holm), and 66? 32' Lat. N. 557 34" Long. W., 100 fath. (idem). 
Distribution. Sars, Pycnogonidea, 1891, p.97, regards it as a genuine arctic species, from 
the sea between Beeren Eiland and Spitzbergen (Sars), the Barents Sea (Hoek), the Kara Sea and the 
Davis Strait (Hansen), to which the Ingolf thus adds the southmost parts of the Greenland Sea and 
the Denmark Strait. 
5… Nymphon megalops G. O. Sars. 
Nymphon megalops Sars, Prodr. Crustac. Pycnog., 1877, p. 366. n? 7. 
— — Idem, Pycnogonidea, 1891, p. 98. Pl. X. Fig. 3, 3 a-g. 
Occurrence. The Ingolf-stations 93, 138, and 143 show it to be taken as well in the Den- 
mark Strait as in the southern part of the Norwegian Sea, at the first station at a depth of 767 fath., 
while at the two last-named stations in the Norwegian Sea the depths were respectively 471 fath. 
and 388 fath. 
Previous to the Ingolf expedition it was found at the Zoological Museum from a high degree of 
latitude in the Denmark Strait: 65” 39' Lat. N. 28? 26' Long. W., 553 fath., the bottom stones and shells 
