30 ABERRANTIA. 
AMPHIPODA. DULICHIIDA, 
Genus—DULICHIA (Kréyer). 
Dulichia. Kroyer, Nat. Tidsk. n.s. i. p. 521. Voy. en Scand. pl. xxiii. 
fig. 1. Spence Bare, Ann. Nat. Hist. xx. p. 526. 
Dyopedos. Spunce Batu, Ann. Nat. Hist. 2 ser. xix. p. 150. 
Generic character. Superior antennze longer than the in- 
ferior. Inferior antennz inserted posteriorly to the superior. 
Gnathopoda chelate. Pereiopoda subequal, having neither the 
coxee nor basa developed into scales. Three anterior pairs of 
pleopoda normal; fourth and fifth terminating in two styliform 
rami; sixth obsolete. ‘Telson single, lanceolate. 
In this genus the animals have the bodies long and 
narrow; the eyes normal; the superior antennz longer 
than the inferior, both pairs carrying short flagella. The 
inferior pair arise farther back than the superior. The 
hands of the first two pairs of legs are more or less 
chelate. All the legs have the first joint small and squa- 
miform, that of the last two pairs being fused with the 
fifth segment of the body. Each of the caudal appen- 
dages terminates in two styliform rami. The middle tail- 
piece is single and pointed. 
This genus appears to be essentially arctic. It was 
from thence that Kroyer obtained the type of the genus, 
specimens of which we have scen attain the length of one 
inch and a quarter. The species taken on the northern 
shores of this island scarcely reach to the length of a 
quarter of an inch, while those from the western shores 
are still smaller. 
