MONTAGUA ALDERI. 



61 



AMPHIPODA. 



NATATOKIA. 



STEGOCEPIIA LIDES. 



MONTAGUA ALDERI. 



Specific character. Second pair of gnathopoda having the propodos short ; 

 palm serrated near the base of the dactylos, and deeply emarginatecl near the 

 inferior angle, which is prodiiced to a sharp point. 



Length, ^ of an inch. 



Montagua Alderii, S PENCE BATE, Rep. Brit. Assoc. 1855. Synop. Brit. 



Amph. Ann. Nat. Hist. 1857, xix. 137. Cat. of 

 Amph. Brit. Mus. p. 57, pi. viii. fig. 6. WHITE, Pop. 

 Hist. Brit. Crust, p. 166. 



THE eyes, as in all the other species of the genus which 

 we know, are round and red. The superior antennae are 

 nearly one-half the length of the animal, having the 

 flagellum rather longer than the peduncle. The inferior 

 antennas are longer than the superior, and the peduncle 

 reaches nearly to the extremity of the superior antennae ; 

 the two last joints of the peduncle are nearly of equal 

 length, the last being rather the shorter, and the flagellum 

 is not longer than the last joint of the peduncle. The 

 first pair of legs are slender, and have the fourth joint 



