KONGL. SV. VÉT. AKADEMIENS HANDLINGAR. BAND 35. N:0 5. 41 



with 2 plumose S. B 2 and Ei with 2, 2, 2, (3 <S. /?e witli 9 plumose S. Le 1 with 

 9 plumose long S. Le 2 very small with 1 strong 5*. 



First maxilliped distinctly jointed, 2V2 times as long as broad, with crowded lobes. 

 L 1 with 2 strong and 3 small S and 1 very small bristle. L 2 — 5 each with 2 Sa and 

 1 Sp, the former falcate, strong, the latter much finer. L 6 and Ri 1 and 2 each with 

 1 strong, falciforra Sa; Bi 3 with 2 strong 5a and 1 half as long Sjj. All Sa are spinulose, 

 the spines becoming coarser and raore distal, the more distal the S are, so also the length 

 of »Sa, the ultimate being tAvice as long as the body of the maxilliped. Of the lobes 

 L 5 is the strongest. 



Second maxilliped. B 1, B 2 and Ei of equal length. B 2 half as broad as i? 1 

 and 3 times longer than broad. L 2 and 3 each with 1 longer an 1 shorter Sa. L 4 with 

 1 strong (the largest of all) spinulose Sa, 1 sbort, plumose Sj:) and a small naked bristle. 

 B 2 with 2 distal S. Ei 4-jointed. Ei 1 as long as the other joints together, with 2 

 distal plumose S. Ei 2 and 3 each with 1 and Ei 4~5 with 3 S, all plumose. 



Natatory legs of the 1st — 4th pairs, i? 1 as long as broad, with nearly straight 

 margins and 1 plumose short Si. B 2 as long as broad, naked. Ee and Ei inserted on 

 the same level, the former 3- the latter 2-jointed, the former twice as long as the latter, 

 which equals B in length. »Se of the 1st p. 1, 1, 2, of the 2nd — 4th 1, 1, 3, triangulär 

 with entire mai-gins; the largest are 1, 1, 3, of the 3rd p., the smallest are 1 and 2 of 

 Ee 3. St knife-like on all pairs, with finely seri"ate exteriör margin (5 teeth in 0, 01 mm. 

 on the 4th p.). The exteriör margin of Ee hairy. Longitudinal proportion of the 3 

 ioints and S/: 



Pairs. 



Rel. 



Äe2. 



Re?,. 



1 



10 



6 



13 



9 



10 



10 



20 



3 



10 



10 



20 



4 



10 



10 



18 



20 



Si of the 1st p. 1, 1, 4, of the other 1, 1, 5. Ei reach a little beyond the distal margin 

 of Ee 2. The 1st joint with 3 Si. The »S of the 2nd joint 6 (1st p.), 8 (2nd and 3rd p), 

 7 (4th p.). 



Fifth pair of legs somewhat asymmetrical, 4-jointed. B 1 of both legs uniting; 

 B 2 one and a half times as long as broad, with 1 median Se. The third joint {Ee 1 ~ 2) 

 one and a half times longer than B 2, with 1 median and 1 distal Se. Ee 3 acute, with 

 2 »Se. All Se with more or less distinctly serrate margins. 



Corycseus gibbulus Giesbr. Male. 



(Pl. IV, fig. 3—10). 



Diagnosis. Abdomen not jointed, twice as long as the furca, the branches of the 

 latter being about 7 times longer than broad. Posterior antenna: B with a distal, plumose 

 Si as long as B 2, which carries at the proximal end a spinulose »S not reaching beyond 

 the distal margin of the joint. The interiör margin of B 2 entire. Terminal claw of 

 equal breadth throughout. L. 0,9 mm. 



K. Sv. Vet. Akad. Handl. Band 35. N:o 5. 6 



