32 Carl Bovallius, 



The body is veiy broad. 



The head is globular, tumid. 



The eyes are large, but imperfectly developed. 



The first pair of antennce with a multi-articulate flagellum; the 

 first joint of the flagellum very long, beset with long hairs. 



The two first pairs of iiereiopoda are simple, not subcheliform ; the 

 two succeeding pairs with the tibia very long, lamelliform; the last pair 

 transformed, filiform. 



The last pair of urojjoda with lanceolate rami. 



The telso7i is minute. 



Only one species is known. 



1. Hyperiopsis Voeringii. G. 0. SARS, 1885. 



(PI. II, fig. 40, copied from G. 0. Savs.) 



Syn. 1885. Hyperiopsis Voeringii. G. 0. SARS. The Norwegian Nortli Atlantic Expe- 

 dition 1876—1878. Zooloiiy. Crusta- 

 cea, I, p. 231. Fol. 

 Diagn. Corpus laeve. 



Caput margine anteriore arcuato, tuberculo parvo supra bases anteniiaruni 



primi paris instructo. 

 Antenntv primi paris flagello XII — Xlll-articulato, articulo prinio sequentibus 



breviore. Flagellum secundarium quattuor-articulatum. 

 Tibite parium tertii et quarti ped^tm pereii valde elongatse, dilatatfe, remi- 



formes. 

 Epimera segmentorum quattuor priorum magna, subsequalia. 

 Kami paris ultimi pedum uri pedunculo longitudine sequalos. 



The body is smooth. 



The head with the anterior margin evenly arched, with a slight 

 tubercular projection over the base of the first pair of antennœ. 



The first pair of antennce with a 12~ 13-articulated flagellum; the 

 first joint shorter than the following together. The secondary flagel- 

 lum is four-jointed. 



The tibife of the third and fourth pairs of pereiopoda are verj^ 

 elongate, dilated, oar-shaped. 



The epimerals of the first four pereional segments are large, 

 subequal. 



The rami of the last pair of uropoda equal the length of the 

 peduncle. 



