THE MUNNOPSIDA 385 
two-branched, the branches single-jointed. Hight Nor- 
wegian species have been described by G. O. Sars, in some 
of which the second, third, 
and fourth limbs are ex- 
tremely elongate, but in 
Hurycope robusta, Harger, 
from the Gulf of St. 
Lawrence, they are not 
much longer than the body. 
The three species first de- 
scribed, Hurycope cornuta, 
phalangium, and mutica, 
all of Sars, range in length 
between a seventh and a 
sixteenth of aninch. Hu- 
rycope gigantea, Sars, ex- 
tensively distributed in 
the high north, attains a 
length of an inch and a 
third, by a breadth of over 
half an inch. It is notable 
that this species and Mun- 
nopsis typica appear inva- 
riably to occur together. 
Both sexes are known of 
both. The first antennze 
are shorter in the females 
than in the males. In Eu- 
rycope gigantea there is, 
according to Hansen, a 
little triangular plate on 
the third joint of the second 
antennee, which may be re- 
garded as a rudimentary 
exopod. It would not seem 
very rash to conclude from 
this that the first two 
joints are really one joint 
subdivided. The fourth 
FIG. 32.—Eurycope gigantea, Sars [Hansen]. 
