MEGAMCERA ALBERT. 



AMPHIPODA. 



NATATORIA. 



407 



OAMMAEIDES. 



MEGAMCERA ? ALBERT. 



Specific characier. Posterior dorsal margin of the third and fifth segments 

 of the iileon i^roduced to a small tooth. Second pair of gnathopoda larger 

 than the first, having the propodos ovate, palm oblique, serrated, and defined 

 by a tooth. 



Length j*,, inch. 



Mer/amoera AlderL Spence Bate, Cat. Amph. Brit. Mus. p. 228, pi. xl. 

 fig. 1- 



The third segment of the tail is posteriorly produced 

 in the middle of the dorsal margin into a small point. 

 The fourth does not appear to be so produced, whilst the 

 fifth has a sinall central, and close upon each side a large 

 lateral, tooth. The eyes are round or oval. The su- 

 perior antennae are about two-thirds of the length of the 

 animal ; the flagellum longer than the peduncle, and the 

 secondary appendage consisting of three articuli. The 

 inferior antennae reach a little beyond the peduncle of 

 the superior. The first pair of legs have the wrist 

 longer than the hand ; the palm is oblique and longer 

 than the inferior margin. The second pair of legs are 

 larger than the first ; the hand is nearly of the same form, 



