DULTCHIA PORRECTA. 



AMPHIPOBA. 



ABERRANTIA. 



31 



DVLICEIIDJ'.. 



DULICllIA PORRECTA. 



Specific character. Cephalon not prodnoed into a rostrum. Pereion and 

 pleon dorsally smooth. Eyes round, not elevated upon a tuhercle. Superior 

 antennre about half the length of the animal ; flagellum shorter than the last 

 joint of the peduncle. Second pair of gnathopoda having the propodos long 

 and armed with two straight and anteriorly-directed teeth, the posterior one 

 being the longer. 



Length \ inch. 



DulicJiia porrecta. Spence Bate, Cat. Amph. Brit. Mus. p. 348, pi. liv. 



fig. 9. Ann. Nat. Hist. xx. p. 526. White, Pop. 



Hist. Brit. Crust, p. 209. 

 Dyopedos porrecta. Spence Bate, Ann. Nat. Hist. 2 ser. xix. p. 151. 



This species differs from D. spinosissima, on which 

 Kroyer founded the genus, in the following particulars : 

 — The head is not produced forwards into a sharp 

 rostrum ; the body and tail are smootli, being free from 

 teeth or spines. The eyes are round, but not raised upon 

 a stout tubercle. The superior antennae are about half 

 the length of the extended animal. The first joint of 

 the peduncle is short and robust, but the two succeeding 

 are long and slender. The flagellum (probably) is about 

 half the length of the last joint of the peduncle. 



