73 



Superior antenna} very small, with the first joint of the peduncle quite short, and 

 extended straight in front, at a right angle to the remaining part of the antenna. 

 Inferior antenna 3 very slender, with the last peduncular joint much elongated. 

 Oral parts on the whole resembling those in Cirolana. Anterior pairs of legs 

 rather short and thick, the 4 posterior ones gradually increasing in length, and 

 having the outer joints broad and compressed. Pleopoda of normal structure. 

 Uropoda with the basal part only very slightly produced inside, rami compara- 

 tively broad, lamellar, and edged with long seta?. 



Remarks. — This genus, established by Leach, is very nearly allied to 

 Cirolana, though differing in some particulars, so as to justify its separation. 

 The genus Slabberina of v. Beneden is undoubtedly identical with Leach's genus. 

 We know of about 8 species, one of which belongs to the fauna of Norway, and 

 will be described below. 



Eurydiee pulehra, Leach. 



(PI. XXX, fig. 2.) 



Eurydiee pulehra, Leach, Trans. Linn. Soc. XI, p. 370. 



>Syn: Slabberina agaia, v. Benedec. 

 „ — agilis, G. 0. Sars. 



„ — gracilis, Bovallius. 



Specific Characters. — Body in adult specimens rather short and stout, oval 

 in form, and rather convex above. Cephalon evenly rounded in front. Ooxal 

 plates well defined, and rpiite smooth. Metasome about the length of the 5 poste- 

 rior segments of mesosome combined, 1st segment very short, almost concealed; 

 terminal segment very large, about the length of the preceding ones combined, 

 and semi-oval in form, tip obtusely rounded, and armed with 4 minute spinides, 

 being, moreover, fringed with small bristles."' Eyes rather large, oval triangular, 

 extending a little up the dorsal face. Superior antenna? with the flagellum 

 5-articulate, 1st joint much larger than the other 4 combined. Inferior antenna?, 

 when reflexed, reaching almost to the end of the mesosome, last joint of the 

 peduncle about the length of the preceding joints combined, flagellum extremely 

 slender, and composed of about 20 articulations. Legs densely setiferous, and 

 armed with scattered short spines; last pair with the meral and carpal joints much 

 expanded, propodal joint about the length of the carpal one, but considerably 

 narrower; dactylus in all pairs rather small. Uropoda with the basal part densely 

 setous outside, and having a single bristle at the inner corner, terminal plates 

 rather unequal, the inner one being much broader than the outer, and obliquely 

 truncated at the end. Body ornamented dorsally with richly ramified, dark, pig- 



10 — Crustacea. 



