A RARE HYDRACARID LEBERTTA DENSA, KOEN 273 



inner surface there is a small peg projecting forward. The 

 claws at the end of the fifth segment are small and not 

 conspicuous. The groups of fine pores on the first four 

 segments do not lie close together, but they are evenly 

 distributed over the segments. 



The extreme width of the epimera is about 0-90 mm. and 

 the length about 075 mm. The whole of the epimeral area 

 is surrounded by an unusually thick edge. The first pair are 

 of the usual type and extend downwards for nearly three- 



Epimera and Genital Area. 



fourths of the distance between the capitulum and the 

 genital area. The second pair are relatively broad at the 

 posterior end, being a little less than half of the width at the 

 anterior end. The posterior ends do not lie straight across 

 but are sloped anteriorly inwards. The suture from the 

 outer edge extends in for about one-fourth of the length of 

 the epimera, while that from the inner edge is about half the 

 length. The third pair are triangular in shape, the posterior 

 suture extending in for about two-thirds of the length. The 

 fourth pair have their margins conspicuously thickened, and 



