EURYDICE. 307 
ISOPODA. 4AGID A. 
NORMALIA., 
Genus—EURYDICE. (Leach.) 
SLABBERINA. (Van Beneden.) 
Elongate-ovate, moderately convex; upper antenne very 
short, cylindrical ; lower antennz long, with a multiarticulate 
slender flagellum; legs small; uropoda with the inner division 
larger than the outer, and hatchet-shaped. 
Tue only two characters given by Dr. Leach of this 
genus, namely, the ‘‘ abdomen composé de 5 articles,” 
and ‘‘ yeux lisses,” which are described as separating it 
from Nelocira (in which the pleon is described as having 
five segments, and the eyes being granular), and also 
from Cirolana (in which the pleon has six segments, 
the eyes being also granular), are unsatisfactory, and 
have induced M. Milne Edwards to unite Nelocira with 
Eurydice, especially as the figure given by Desmarest of 
the former of these two genera represents it with a six- 
jointed tail; whilst Van Beneden expressly says that the 
eyes are distinctly faceted in the animal, which he has 
described and figured under the name of S/abberina agata, 
and which is certainly identical with the Hurydice pul- 
chra of Leach. 
Van Beneden, moreover, represents the tail as formed 
of a large exarticulate mass, in which the five anterior 
segments are only indicated by partial longitudinal mark- 
ings on the skin, followed by a sixth narrow segment 
and a seventh large terminal semi-ovate one. 
He also describes and figures the upper antenne as 
x 2 
