334 BRITISH ENTOMOSTRACA. 



texture, ovate, depressed, broad at the base, and obtusely 

 pointed in front, resembling very much the shape of thebody 

 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. 



Hal). A specimen of this arctic species was found at- 

 tached to the eye of a shark caught on the English coast, 

 and brouo;ht to London in the winter of 1848. Mr. 



O 



Yarrell, to whom I 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. 



LEKNEOPODA 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, 



