KONOL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 21. N:0 5. 57 



The sixth j)air (Pl. VD, lig. 31); the fe in ur is broadly ovate. The anterior margin 

 of the carpus is fringed with short, equidistant hairs. The metacarpus is sharply ser- 

 rated. The dactylus is a fourth of the length of the metacarpus. 



The seventh pair (Pl. VII, fig. o2 and 33) the fem ur is uncommonly lai^ge, almost 

 as broad as long, longer than the three following joints together. The dactylus, shorter 

 than the metacarpus, is thicker at the lower end, plated with small, ovate, spiniferous scales. 



The pleon is verv large, much longer than the last four pereional segments. The 

 lateral parts of the segments are very deep, the hinder corner angulated. 



The peduncles of the plcopodn are shorter than tlic rami. The rami are 15- to 16- 

 jointed. 



The urus is shorter than the last pleonal segment. The lirst segment is almost 

 as long as the two following together, the second segment is onlv a little shorter tlinn tlie 

 third. The hinder corners of the third segment are rectangular, not produced. 



The uropoda (Pl. VII, fig. 34); the lirst pair reach nearly to the end of the last pair; 

 the peduncle is broad, linear, only a little longer (21:19) than the rami; the rami are 

 equal in length, narrow, acute, tineh' serrated along both margins. The second pair reach 

 almost as far as the lirst pair ; the peduncle is broad, linear, about as long as the interiör 

 ramus; the exteriör i-amus is shorter than the interiör one, smooth on tho outei- margin, finely 

 seiTated on the inner. The third pair have tlie pedunc](> a little iiiu-roMed above, longer 

 than the last two ural segments together, and longer tliaii the rami; the ]'anii are almost 

 equal in length, elongate-lanceolate, acute. The exteriör ramus is smootli on the outer 

 margin and tinely sei-rated along the inner; the interiör ramus is serrated along both margins. 



The tclsdii is hirge, triangulär, rounded behind, much longer than half the j)eduncie 

 (;f the last pair of uropoda and nenrh' as long as the last two ural segments. 



VIBILIA B0BP:AL1S. SPKXCK r.ATl- AM. WKSTWOOI). 1868. 



Vibilia bovealis, Spence Bate and Westwood. 



Kdcsiinile Ironi Si". Batk ;iiu1 WESTWOiin. Hril. Scsäilc-eyed Crusl. 11, ]). ii:ii. 



Diagll. ('iiimt non rostratiim, scunientis iliidbus primis pereii longius. Ociili modici. Flagellum aii- 

 teunaruin prim! paris ante rotimdatuni, caput cuni segmentis duobus primi.s pereii longitii- 

 diue ajquans. Pedes pereii eiirti, non hirsuti. Femora pedum parium quatuor prioruui 

 angusta cvlindrica, femora parium trium ultimoruni dilatata. Tibia? pedum tertii ac quarti 

 parium non tnmida\ dactvli brevissimi. Pedes quinti et sexti parium pedibus tertii et 



K. Sv. Vet. Akacl, HaiuU. Baud. -IX. N:o .",. " 



