LERNEOPODA. 335 



between which, on the middle line, is a small tubercle, 

 representing the abdomen. Ovarian tubes of moderate 

 length, not quite equal to length of thorax. 



Length of the whole body, including arms, about three 

 fourths of an inch. 



Male. Body divided into two portions, of an ovoid 

 form, and nearly of ec{ual size. The upper half represents 

 the head, and carries a pan- of antennas, and two pairs of 

 foot-jaws of considerable magnitude. The lower half, 

 representing the thorax, has at its posterior extremity 

 two sub-globular appendages, a little longer than those 

 in the female. 



Hah. — Female. Attached to the cavity posterior to 

 the vent of the Squalus ^aleiis, Belfast, December 1839, 

 W. Thompson, Esq. 



8. Lerneopoda salmonea. Tab. XXXV, fig. 6. 



Pediculus salmonis, Gisler, Kongl. Svensk. Vetensk. Acad.Hadliug., 



xii, 171, t. 8, f. 1-5, 1751. '^ 



LernjEA salmonea, Linnmus, Faun. Suec, edit. 2d, 509, No. 2102, 

 1761; Syst. Nat., edit. 12tb, 293; Lernffia,No.3. 



— Cordiner, Antiq. and Seen, of the N. of Scotland, 



7, 8, t. 6, f. 2. 



— 0. Fabriciiis, Faun. Groenl., 337. 



— Miiller, Zool. Dan. Prod., 2744. 



Entomoda salmonea, Lamarck, Hist. An. s. Vert., edit. 2d, iii, 686. 

 Lekneopoda salmonea, Blainville, Journ. Phys., 1822, 127. 



— Mui/or, Bull, des Sc. Soc. Philom., 1824, 24. 

 Lekneopoda carpionis (?), Kroi/er, Tidsskrift, i, t. 2, f. 6. 



— M. Edwards, Hist. Nat. Crust., iii, 515. 



Linnseus's description of this species, as far as it goes, 

 is very good. " Body obovate, thorax obcordate, the two 

 arms linear, approximated." The head is rather small, 

 somewhat bulging out at the back part, broader there, 

 and rather sharp-pointed at the anterior extremity. From 

 the base of the head spring the two arms, which are 

 rounded, and slightly shorter than the body. The thorax 



