﻿PVCXOGONIDA. 



35 



e. e. The claws long, thin. 



f. The fingers of the cheke short. 



f. f. The fineers of the chela; lon<r. 



a. a. The trunk hairy. 



g. The fingers of the cheke dentate. 



(The auxiliar>- claws well developed), 

 h. The hair-covering spread, fine. 



h. h. The hair-covering dense, coarse. 



g. g. The fingers of the cheke simple, strongly arcuate. 

 (The anxiliar}- claws rudimentary). 



9. N. longitarse Kr. 



10. X. Groenlandicnni n. sp. 



11. N. elegans Han.s. 



12. X. leptocheles G. O. Sars. 



13. X. macruni Wils. 



14. X. macron\x G. O. Sar.s. 



15. X. spinosum Goods. 



16. X. tenellum G. O. Sars. 



17. X". robustum Bell. 



I. Nymphon grossipes Fabr. 



Pycnogonum grossipes O. Fabricins, Faun. Groenl, 1S70, p. 229. 



Nymphon grossipes Kro}-er, Kundsk. Pycnog., 1844, p. 108. 



— — Idem, Gaimard, Voy. Scand. Lappon., 1S49, pi. 36. Fig. i, a-h. 



— — Wilson, S>-n. Pycnog. Xew-Engl., 1S78, p. 20. PI. VH. Fig. i, a-q. 



— — Hansen, Kara-Hav. P\cnog., 1886, p. 16. Tav. X\'III. Fig. 8, 8 a. 



— — Sars, Pycnogonidea, 1891, p. 65. PI. \'I. Fig. 2, 2 a-i. 

 X^ymphon mixtum Kroyer, Kundsk. P\'cnog., 1844, p. no. 



— — Idem, Gaimard, Voy. Scand. Lapp., 1849, PI. 35. Fig. 2, a-f. 



— — Hansen, Fortegn. dansk. Pycnog., 1S84, p. 649. 



— — Idem, Zool. Dan., 1S85, p. 128. Tab. MI. F'ig. 19. 



— — Sars, Pycnogonidea, 1S91, p. 68. PL \'I. Fig. 3, 3 a-i. 



I cannot side with vSars in considering the .V. iiiixtuDi of Kroyer as a good species, but 

 must agree witli Wilson in uniting .\'. grossipes and X. iiii.xtiiiii] perhaps I may also be allowed to 

 point out that Hansen in his list of Danish Pycnogonida seems inclined to approve of such a union. 



Occurrence. The Ingolf-stations 2, 31, 87, 95, 127 state it to be taken in the Davis Strait, 

 the Denmark vStrait, as well midway between Greenland and Iceland as nearer to the latter i.sland, 

 in the mouth of Bredebugt ; further also in the Greenland Sea, and finally as far south as the 

 boundar\- of the Norwegian Sea midway between the Faroe Islands and Iceland. The depths were from 

 50 — 752 fathoms (Danish). 



P'urther it is found at the Zoological ?»Iuseum from uuui>- localities, ^^'heu it has been called 

 by other names than that of N. grossiprs^ the name in cjuestion has been added in a parenthesis. 



