1908] Decapod Urustaceans. me 
species. They reach forward in å large number of short windings 
and are posteriorly united by å crosspart which likewise consists of 
a number of windings. The right and left testes with the cross-part 
lie realiy much eloser together than is shown by the drawing. 
To show the connections it was necessary to separate them to å 
certain extent from one another. 
Vas deferens begins with å number of short windings and 
then proceeds as å long thin tube in å great bow to the coxa of 
the 5th pereiopod. Its lower part (Ductus ejaculatorius) is some- 
what expanded. 
Qvaries are united, as shown in fig. 9 a, by a fairly broad 
bridge. The little ovary enlarged to four times its natural size, 
and depicted in fig. 9 a, is from åa specimen taken in the south of 
Norway during August. 
Hymenodora glacialis. 
Of this pelagic species we have specimens from the following 
localities, obtained during the eruises of s/s "Michael Sars” in the 
Northern Sea. 
St. 10, ”% 1900, 64? 53" N, 109 W. 8350 fathoms. % specimens. 
St. 34, 19% 1900, between 500—1000 meters, pelagic, I ovigerous 
specimen. 
St. 46, 1% 1900, about 1000 meters, pelagic, 1 ovigerous specimen 
little developed. 
St. 55, 19% 1902, 62% 40' N, 19 56" E. 360 fathoms. Å few 
speeimens. 
Sefo ova 8 2 mm, oval. 
Sergestes arcticus KRØYER. 
A few years ago this species was only known through a few 
speceimens from the Norse coast. The new species described by 
METZGER Sergestes Meyeri ought really to be regarded as synony- 
mous with Krøyzr's species.  MetzGEr's typical specimen of S. arc- 
tieus was taken in the Korsfjord south of Bergen. G. 0. SArs 
