PYCNOGONIDA. 
4... Colossendeis angusta G. O. Sars. 
Colossendeis angusta Sars, Prodr. Crust. Pycnog., 1877, p. 368 n? 8. 
— — Wilson, Report Pycnog. «Blake», 1881, p. 243. Pl. III. Fig.8 og 13. 
— —…… Hoek, Pycnog. Faroe Chann. «Triton», 1884, p. 5. Pl. 1. Fig. 8. 
— — Hansen, Kara-Hav. Pycnog., 1886, p. 21. 
— — … Sars, Pycnogonidea, 1891, p. 140. Pl. XV. Fig. 2, 2 a-f. 
Nec! Colossendeis gracilis Hoek, Report Pycnog. «Challenger», 1881, p. 69. Pl. IX. Fig. 6—8. P1.X. Fig.6—7. 
— — —  Schimkéwitsch, Compte-rendu Pantop. «Albatross», 1893. p. 32. 
I am decidedly of the opinion that the Co/Z. gracilis of Hoek and the present species are 
different, even if by the mutual ratio of the last joints of the palps and by the specially long 
claws of the ambulatory legs they form a particular generic group. It is upon the whole only 
in the imago, or a far advanced stage of the development that the last joint but two of the palps 
assumes its peculiar shape, while in the very young larva the same joint, cp. fig. 22, does not deviate 
as to shape and position, but only as to length from the rule. 
The chelifori found by Hoek in a couple of specimens of Col. angusta and gracilis, and by 
him mentioned as something quite strange or abnormal, I have found in upwards of a score of 
grown young ones (of a length of 13—14r») of Co/. angusta, fig. 21, so that I should even be inclined 
to suppose that the young one as a rule keeps these larval limbs, until they are thrown off at the 
last moulting, cp. fig. 21. Also in a much younger larva (6"= long) I have found chelifori of 
about the length of the proboscis, and with the scape divided into two distinet joints as im the full- 
grown larva.. The fact of the scape being two-jointed seems to me to be of importance with regard 
to the characterization and systematic position of the family, and therefore I have also pointed out 
this feature in the family-diagnosis. Cp. also the essays by Hoek cited here. 
" OQecurrence. The Ingolf-stations are 2, 3, 4, 64, 70, 103, 104, 105, TOG ELLOS DD LE 7 ELO T2S 
138, 140, 141. From the great number of stations it will be seen that this species not only without 
comparison has been the Co/ossendeis most frequently found, but also that in this respect it is inferior 
to no other Pycnogonid. It is especially in the southern part of the Norwegian Sea near the Farée 
Islands, just at the boundary of the Atlantic that it has been found; it has, however, also been taken 
farther north in the same seas towards Jan Mayen, and one single specimen has been taken some 
way up in the Greenland Sea, stat. 125, 68" 08' Lat. N. 16?02' Long. W. <A few stations are also 
found in the Atlantic south of Iceland, stat. 64, 62? 06' Lat. N. 19” 00' Long. W. with a depth of 
1041 fath. The depths were otherwise varying between 134 and 1309 fath., most frequently some 
7—800 fath. 
Distribution. From the Kara Sea (Hansen) and N. W. of Beeren Eiland (Sars) it is 
spread especially to the south in the Norwegian Sea and the Faråe-Shetland Channel (Hoek), and 
from there sparsely round the southern coast of Iceland to the eastern coast of North America 
(Wilson). 
