Introduction. 
The Copepod which forms the object of the present paper 
was found by Dr. Lysholm in a gathering of bathypelagic animals 
taken during the cruise of ,Armauer Hansen“ in 1913, and was 
kindly submitted to me for examination and description. The out- 
ward appearance of the Copepod is very peculiar, and indeed at 
first I was in doubt about its real systematic position, though I 
conjectured that it might belong to the semiparasitic forms com- 
prised within the great division Cyclopoida. This has also 
been fully confirmed by a closer examination and by the dissec- 
tion of one of the two specimens obtained, proving it to be a true 
poecilostomous Cyclopoid, which, according to the structure of the 
oral parts, ought to be classed within the family Lichomolgidæ, 
as defined by the present author in his work on the Norwegian 
Cyclopoida. It cannot however be referred to any of the hitherto 
known genera included within this family, but evidently forms the 
type of a new genus, the chief characters of which will be given 
at the close of this paper. The generic name here proposed al- 
ludes to one of the most conspicuous characters, viz., the peculiar 
oarblade-like structure of the caudal rami or furcal joints. 
Description of the Female. 
The length of the body, measured from the frontal margin 
to the end of the caudal rami, does not fully attain 2 mm. (1.90 
mm.), and this Copepod accordingly is of rather small size as 
compared with most other forms of the present family. 
The general form of the body (see figs. 1 & 2) is rather 
slender, with the two chief divisions sharply marked of from each 
other. The anterior division is oblong oval in outline, or some- 
what club-shaped, its greatest width occurring far in front and not 
