1898—1902. No. 18.] CRUSTACEA. 9 
Fam. Idotheide. 
16. Mesidotea Sabini (Kroyer). 
A solitary specimen of this form was taken on Aug. 4, 1902, in Gaase 
Fjord, north of the peninsula, from a depth of 10—15 fathoms. Accord- 
ing to Miss H. Rictarpson, the 2 arctic species Idothea Sabini and 
L entomon cannot be referred either to the genus Chiridoiea or to 
Glyptonotus, for which reason the new genus Mesidotea has been 
established by that distinguished naturalist. 
Suborder Asellota. 
Fam. Janiride. 
17. Janira tricornis (KRoyER). 
Some few, more or less mutilated specimens of this arctic species 
were picked up from the bottom-residue of 3 or 4 bottles. 
Fam. Munnide. 
18. Munna Fabricii, Kroyer. 
Several specimens of this form were found in the bottom-residue of 
5 of the bottles. 
19. Munna Kreyeri, Goopsir. 
Found together with the preceding species. 
Fam. Munnopside. 
20. Munnopsis typica, M. Sars. 
A single specimen of this characteristic form was taken on Aug. 2, 
1901, in the upper part of Gaase Fjord. 
91. Eurycope mutica, G. O. Sars. 
A few specimens of a small Eurycope, apparently referable to this 
species, were picked up from the bottom- residue of a bottle containing 
collections taken on July 30, 1900. 
