BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 11. N:o 17. 17 
Colour. Yellowish-white with black dots. 
Length. 3—4 mm. 
Hab. South Norway; »Christianiafjord». At about 100 
fathoms, clay-bottom. (U. M-) 
Taken by Professor W. LiLLJEBORG, 1874, June 25. Only 
two specimens, both females. 
6. Syscenus Lilljeborgii. BoVALLIusS. 
Syn. 1885. Rocinela Lilljeborgii. C. BOVALLIUS. »A new Isopod from 
the Coast of Sweden> 
in Bihang till K. Sven- 
ska Vet.-Akad. Hand- 
lingar. Band 10. N:o 
10; p: 4; 
When I wrote the description of Rocinela Lilljeborgii, 
I had seen HARGER'S !) diagnose of Syscenus, but not a fi- 
gure of the animal. Although I thought his new genus 
allied in some way to my specimen, the characteristic »pleo- 
poda naked>, expressively quoted by the author, did not allow 
me to suppose them to be so closely related as the are. Some 
months ago MzE. HARGER kindly sent me his »Report on the 
Isopoda» of the »Blake-expedition» ”), which before had escaped 
my attention; there I found instantly that Rocinela Lillje- 
borgii was a true Syscenus, differing from the typical 
species in less important features than might be expected 
from the very distant localities. However they are specific- 
ally distinct. 
It is much probable that Harponyx pranizoides, G. 
O. SARS ?), is a Syscenus, but a very young one. 
1) »Report on the marine Isopoda of New England and adjacent waters», 
in Report of the U. 8. Commissioner of Fish and Fisheries. Part 
6, for 1878, p. 387. 1880. 
RYDOrt on the Isopoda>. in Reports on the Results of Dredging — — 
— — — by the U. S. Coast Survey Steamer Blake. (Bull. of 
ke Mus. of comp. Zoology, at Harward College. Vol. 11, N:o 4, Pp. 
100). 1883. 
>»Oversigt af Norges Crustaceer med forelgbige Bemerkninger over de 
nye eller mindre bekjendte Arter. «I>, in Christiania Videnskabssel- 
skabs Forhandlinger. 1882. N:o 18, p. 15 and 60. 
2 
2 
— 
3 
Ne 
