DULTcnm.ii;. 347 



Group ABERRANTIA. 



The coxa) of the ]x>roi()piHla are not scjiianiiformly develojied, 

 sonic, or all, being fused to their respective seii;nients. 'J'he jjleon 

 has one or more of the segments absent. This group e()ni])rises the 

 Order L.kmodipoda, as described by Edwards, and includes the family 

 DiLicniD^K of Dana. It contains two families. 



Fam. 1. DULICHID^. 



Dyopedid^, Spence Bate, Si/iiopsis, 4'r., A?m. Nat. Hist. Feb. 1857. 



Pereion consisting of six segments. Picon consisting of five seg- 

 ments, exclusively of the telson. Fourth and fifth pairs of pcreiopoda 

 attached to the sixth segment of the pereion. Ultimate pair of pleo- 

 poda wanting. 



1. DULICHIA. 



Dulichia, Xroijer, Nat. Tiihkr. n. s. i. p. 521; Voy. en Scand. pi. 23. f. 1; 



Spence Bate, Ann. Nat. Hist. xx. p. 526, 1857. 

 Dyopedos, Spence Bate, Synopsis, 8fc., Ann. Nat. Hist. Feb. 1857. 



Superior antennae longer than the inferior. Inferior antennae situ- 

 ated behind the superior. Gnathopoda subchclate ; second pair 

 larger than the first. Three posterior paii-s of pereiopoda subequal, 

 longer than the first two, having their basa not broadly developed. 

 Fii'st three pairs of pleopoda normally developed, two succeeding 

 tenninating in sharp styliform rami. Telson single, squamiform. 



1. Dulichia spinosissima. (Plate LIV. fig. 8.) B.M. 

 Dulichia spinosissima, Kroyer, Voy. en Scand. pi. 23. f. 1. 



Female. — Cephalon produced superiorly into a long rostrum. Last 

 segment of the pereion and the first two of the pleon dorsally fur- 

 nished with two teeth ; tliird posteriorly produced into one long 

 tooth ; last three segments olender. Eyes round, elevated upon 

 tubercles. Superior antennae as long as the animal ; flageUum not 

 longer than the last joint of the peduncle. Inferior antennce about 

 half the length of the superior ; flagollum not longer than the last 

 joint of the peduncle. First pair of gnathopoda having the infe- 

 rior angle of the propodos rounded ; dactylos as long again as the 

 palm. Second pair of gnathopoda having the propodos ovate ; 

 palm oblique, imperfectly defined. Coxae of the pcreiopoda deve- 

 loped into an inferiorly-directcd tooth. Posterior pair of pleopoda 

 terminating in sharp styliform rami. Telson lanceolate. 



Male. — According to Krtiycr's figure, which I take to be the male of 

 this species, the second pair of gnathopoda have the palm parallel 



