334 
BRITISH ENTOMOSTRACA. 
texture, ovate, depressed, broad at the base, and obtusely 
pointed in front, resembling very much the shape of the body 
of the common spider-crab. The second pair of foot-jaws 
is large and well developed, consisting of a large, rounded, 
oval, basal joint, and a more slender, curved, hooked, 
terminal one, with a pretty strong tooth on its inner edge. 
The head is united to the body by a short, narrow neck. 
The thorax is long and narrow, of a somewhat club-shaped 
form, and gives origin to two long cylindrical arms, which 
considerably exceed the length of the body. At the pos- 
terior portion, which is somewhat truncate, we see two 
small lobes ; and on each side of these spring the ovaries, 
which are about the length of the entire body, thick, 
straight, and cylindrical. 
Length of whole animal, nearly three inches. Head, 
one line and three quarters. Body, seven lines and a half. 
Arms, one inch and one line. Ovaries, one inch and one 
line and a half. 
Hab . — A specimen of this arctic species was found at- 
tached to the eye of a shark caught on the English coast, 
and brought to London in the winter of 1848. Mr. 
Yarrell, to whom 1 am indebted for the specimen, took it 
himself from the eye of the shark, but unfortunately it 
was not perfect. Its arm-shaped appendages were inserted 
into the cornea, to the depth of nearly a fourth of their 
length. 
2. Lerneopoda galei. Tab. XXXV, fig. 7. 
Lerneopoda galei, Kroyer , Tidsskrift, i, 272, t. 3, f. 5 a-f. 
— M. Edwards, Hist. Nat. Crust., iii, 516. 
Character. — Female. The head is oval, depressed, and 
of a hard, horny substance. The thorax is long, rather 
slender, and somewhat cylindrical, narrow where it is at- 
tached to the head, and broadest at its posterior extremity. 
The arms are slender, and nearly the length of the thorax. 
At the posterior extremity of the body are two small lobes, 
