LERK^OPODA ELONGATA. 197 



land shark captured in the North Sea and landed at 

 Aberdeen Fish-Market in April 1901. Both specimens 

 were examined by us. 



2. Lernaeopoda galei Kroyer. 



(Plate LX, figs. 4-6 ; Plate LVIII, figs. 9-15 ; Plate 

 LXIII, fig. 1.) 



1837. Lernaeopoda galei Kroyer. (70) p. 272, pi. iii, fig. 5. 

 1840. Lernaeopoda galei M. Edwards. (43) p. 516. 



1850. Lemeopoda galei Baird. (4) p. 334, pi. xxxv, fig. 7. 



1851. Lernaeopoda galei P. J. van Beneden. (11) p. 120, pi. iv. 

 1896. Lernaeopoda galei Bassett-Smith. (7) p. 163. 



1900. Lernaeopoda galei T. Scott. (112) p. 172, pi. viii, figs. 16-25. 



Female. — Cephalothorax short, flattened, and of an 

 oval shape; the dorsum chitinous and forming a shield- 

 like covering. Genital segment elongated, subcylin- 

 drical, proximal end narrower than the cephalothorax 

 but becoming slightly enlarged towards the posterior 

 extremity ; distal end provided with two small 

 cylindrical processes, one on each side of the minute 

 abdomen. Egg - strings narrow, cylindrical, and 

 tolerably elongated. 



Antennules short, enlarged at the base ; end joints 

 three, narrow, and furnished with a few minute apical 

 setae. Antennas, mandibles, and maxillae similar to 

 those of Lernaeopoda elongata. First maxillipeds short, 

 stout, armed with strong terminal claws. Second 

 maxillipeds slender, considerably shorter than the body, 

 and united at the tip to a chitinous disk or plug inserted 

 into the tissues of the host. Length from the forehead 

 to the end of the posterior appendages 13 to 14 mm. 

 Length of the posterior appendages fully 2 mm., and 

 of the second maxillipeds between 4 and 5 mm. 



Mule. — The male is small. The cephalothorax is 

 nearly equal in length to the genital segment, and the 

 form is ovoid ; genital segment elongate-ovate, fully 

 t wice as long as broad, and having at the distal end 

 two short reflexed oval appendages, one on each side of 

 the nearly obsolete abdomen. Both pairs of maxilli- 



