BATHYPOREIA PELAGICA. 
309 
AMPHIPODA. 
NATATORIA. 
GAM M ABIDES. 
Specific character. Inferior antennse longer than the animal. Fourth 
segment of the tail entire. 
Length | inch. 
Bathyporeia pelagica. Spence Bate, Cat. Amph. Brit. Mus. p. 174, 
pi. xxxi. fig. 6. White, Pop. Hist. Brit. Crust. 
p. 188. 
Ther sites pelagica. Spence Bate, Rep. Brit. Assoc. 1855, p. 59. 
Ann. Nat. Hist. 2 ser. xix. p. 146. 
The superior antennae reach beyond the extremity of 
the peduncle of the inferior, but to what extent we are 
unable to determine, since they were mutilated at this 
point : the articuli are small and regular ; the secondary 
appendage consists of two articuli, one being longer than 
the other, and both being as long as three or four of the 
articuli of the flagellum. The inferior antennae are very 
long and very slender ; the penultimate joint of the 
peduncle is longer than the ultimate ; the articuli of 
