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good for both of the Belts. Possibly it enters the western part of 
the Baltic. 
Pectinavia belgica Pall. 
“Dana'* St. 2842, 2 spec. St. 2845, 3 spec. St. 2902, 1 spec. 
St. 2906, 2 spec. St. 3047, 1 spec. St. 3048, 1 spec. St. 3053, 
2 spec. 
Most of the specimens originate from the North Sea, some few 
from the Kattegat, S.E. of Læsø and one specimen from the nor- 
thern part of the Sound. The largest specimen brought home by 
the “Dana“ has a tube, the length of which makes 97 mm. Another 
specimen — also originating from the Kattegat and found in our 
museum has a tube, the length of which makes 126 mm. 
Petta pusilla Mgrn. 
“Dana“ St. 2881, 3 spec. St. 3049, 1 spec. 
This species seems to be scarce everywhere. Evidently it has 
a rather wide range as it is recorded from the Arctic as well as 
from the Mediterranean, but on account on its sporadic occurrence 
it is impossible for the moment with any accuracy to fix the limits 
of its distribution. — From Danish waters it was — as far as I 
am aware — hitherto not recorded, but it is known to occur in 
the Fjords of the west-coast of Sweden. 
Ampharetidæ 
Amphicteis Gunneri Mgrn. 
“Dana“ St. 2880, 1 spec. St. 3014, 3 spec. St. 3054, 1 spec. 
Seems to occur in most of the Danish waters excepting the 
Baltic. 
Amparete Grubei Mgrn. 
“Dana“ St. 2860, 1 spec. St. 2889, 1 spec. St. 2906, 3 spec. 
Occurs almost anywhere in Danish waters. It is also recorded 
from the Southern part of the Baltic. 
Melinna cvistata M. Sars. 
“Dana“ St. 2896, 1 spec. St. 2897, 52 spec. St. 3042, 8 spec. 
All the specimens taken by the “Dana“ originate from the waters 
Vidensk. Medd. fra Dansk naturh. Foren. Bd. 80. 27 
