348 AMPniPODA ADKBRANTIA. 



with tlic upper margin of the propodos, and defined by a large 

 anteriorly- (lii'ectcd tooth. 

 Length 11 inch. 



Uah. Eiscoe, Arctic Seas. 



The figure and description are taken from a specimen recently 

 piu'chased by the British Museum. 



2. Dulichia porrecta. (Plate LIV. fig. 9.) B.M. 



Dvopedos porrectiis, Spence Bute, Stpiopsic, i§r., Ann. Nat. Hist. Feb. 



1857. 

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



Cephalon not produced into a rostrum. Pereion and pleon dorsally 

 smooth. Eyes round, not elevated upon a tubercle. Superior 

 antenna) about half the length of the animal ; flagellum shorter 

 than the last joint of the pedimcle. Inferior antennae two-thirds 

 the length of the superior ; flagellum much shorter than the last 

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

 podos ovate ; palm oblique, not defined. Second pair of gnatho- 

 poda having the propodos long ; antero-inferior margin (palm) 

 armed with two long teeth, the posterior being the longer, and 

 directed straight forwards ; dactylos waved on the internal mar- 

 gin. Coxae of the pereiopoda not produced to a point. Ultimate 

 pair of pleopoda having the rami styliform. Telson lanceolate. 



Length i^ths of an inch. 

 Hub. Banff" {Ilr. Gregor). 



3. Diilichia falcata. (Plate LIY. fig. 10.) B.M. 



Dyopedos falcatus, Spence Bate, Si/nopsis, Sfc, Ann, Nat. Hist. Feb. 



1857. 

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



Cephalon not produced into a rostrum. Pleon and pereion smooth. 

 Eyes round. Superior antennae two-thirds the length of the 

 animal ; flagellum nearly as long as the last joint of the peduncle. 

 Inferior antennae (wanting). Fii'st pair of gnathopoda having the 

 propodos tapering anteriorly ; palm very oblique, not deflned. 

 Second pair of gnathopoda having the inferior angle of the palm, 

 near the infero -posterior extremity of the propodos, defined by a 

 crooked tooth, and furnished with one, slightly curved and ante- 

 riorly directed, at the anterior extremity ; dactylos long, sharp and 

 curved, and but slightly waved on the inner margin. The rest of 

 the animal differs but little from that of the preceding species. 



Length ^,ths of an inch. 

 Hab. Macduff (Mr. Gregor). 



