ö BOVALLIUS. NEW ISOPODA. 



The pleon is ouly a, little narrower at the base thau thc 

 fourth segment (23 : 2^)^ and much broader than long; the 

 first segment is almost totally covered by the sixth and seventh 

 pereional segments, its visible part being scarcely longer than 

 a fifth of the fifth plconal segment. The second, third, and 

 fourth segments are nearly eqiial in length and breadth. The 

 fifth is longer by a third and a little narrower. The pleon 

 equals the fourth, fifth, and sixth pereional segments in 

 length. 



The second pair of lAeopoda (Pl. I fig. 8) carry a styliform 

 process, very long, fringed with short fine hairs. 



The urus is triangulär with nearly straight sides, smooth 

 on its upper side; its margin fringed with very short, plumose 

 hairs. At the pointed end of the urus there are some few 

 short spines among the hairs (Pl. I, fig. 10). The urus is 

 nearly as long as broad (17: 18), longer than the pleon (17: 15). 

 The pleon and the urus together are shorter than the pereion 

 with the head, but equal in length to the pereion. 



The uropoda (Pl. I. fig. 9) do no reach to the end of the 

 urus. The rami are longer than the peduncle. The inner 

 ramus is not shorter than the outer, finely spotted with dark 

 red, deeply incised at its exteriör margin. The margins of 

 both rami are serrated, provided with miniite spines, and fringed 

 with long simple hairs. 



Coloicr. Yellowish-white with smaller and larger spöts of 

 dark red. 



Length. 18,5 mm. 



Hab. The Adriatic. (C. B.) 



The only specimen I have seen I found in a Collection 

 of Crustaceans from the naturalist-merchant Carl Wessel in 

 Hamburo-. It is an adiilt male. 



2. Aega magniflca. Dana. 



Syn. 1853 Pterelas magnlficus, Dana. United States Expl. Exp. Crustacea 



vol. II, pag. 769, pl. 51. fig. 1 a— f. 

 / 1879. Aega magnifica, Schioedte et Meinert. Symb. ad monogr. Cymo- 

 thoarum. I, pag. 363, tab. VIII, fig. 14-19. 



The specimen here described differs in many points from 

 the description given by Schioedte and Meinert, and approaches 

 more nearly to the type of Dana's description; but as it is 



