konCtL. sv. vet. akademiens handlingar, band. 22. n:o 7. 51 



is longer thaii the carpus, teebly bciit, tlie front margin deiiticulated as iii thc preceding 

 pair; the hinder njargiii is niicroscopically serrated. Tlic dactylus is teebly bent, fully 

 equalling a tenth of the leiigth of tlie nietacarpiis. Tlie h;ngth of the leg is 3.5 nun. 

 (spec. B.), or 38,5 mm. (spec. A.). 



The seventh pair (Pl. III, iig. 13 and 14) are shorter than the third pair. Tlie 

 fe ni ur is mueh broader than the tibia, somewhat broader above than below; the front 

 margin has twelve teeth; the hinder margin eleven, and the inner margin nine teeth. The 

 genu has two teeth on the front margin, none on the hinder and inner margins. The 

 tibia is half as long as the femur, the front margin witli ten unequal teeth, the hind 

 margin witli six very low teeth, and the inner margin witli seven teeth. The carpus is a 

 little longer than the tibia, the front margin has nine unequal teeth, the hinder two, almost 

 indistinct, low teeth, the inner margin is sinooth; on the sides there are some scattered 

 hairs; the under margin is densely fringed with long, stiff hairs. The metacarpus is longer 

 than thc carpus, equalling two thirds of the length of the femur, it is somewhat broader 

 below; the front margin shows twelve unequal teeth, the hind margin three or four in- 

 distinct ones, the inner margin is smooth; on the sides there are four ti'ansversal rows 

 of hairs. The dactylus is almost as long as a fourth of the metacarpus, and distinctly 

 longer than the breadth of the metacarpus, *) evenly curved. All the joints contain glands. 

 The leng-th of the leg is 16,2 mm. (spec. B.) or 17,5 mm. (spec. A.). 



The pleon is about half as long as the perseon. The dorsal keel shows no distinct 

 spine-like prominences. The lateral ridgc is feebly spinulous. The hinder margins of 

 all the segments are fringed with minute teeth. The first segment is the longest, a little 

 longer than the last peraäonal segment. The length of the whole pleon is about 11 mm. 



The jdeopoda. The peduncles are long, narrow, decreasing in length backwards. 

 The rami are longer than the peduncles, the outer ramus is more narrow and slender 

 than the inner, the stout first joint is as long as all the foUowing together; the outer 

 ramus of the lirst pair has seventeeii joints; the first joint is provided with thirteen setie 

 on the outer margin, and nine on the inner, increasing in length from above; the inner 

 ramus has fifteen joints; the iirst joint has eighteen setae on the inner margin, and nine 

 on the outer. I could not detect any trace of »coupling spines»^) or »cleft setas». 



The urus is scarcely carinated, the first segment is shorter than the last pleonal 

 segment but longer than the coalesced second and third ural segment. The first segment 

 is much deeper than the last. The length of the whole urus is 4 mm. (spec. B.), or 4,5 

 mm. (spec. ^4.). 



The first ijair of iirojjoda (Pl. 111, iig. 16) do not reach to the apex of the last pair, 

 scarcely farther than to the middle of the outer ramus of the last pair. The peduncle 

 of the first pair is widening distally; it is longer than the peduncle of the last pair, the 

 outer margin is curved, armed ^vith ten teeth, the anterior margin is sinooth, the inner 

 margin is straight, and has nine teeth; the outer ramus is as long as the coalesced inner, 

 but narrower, and twice as long as the breadth of the peduncle, smooth on the margins; 

 the inner, coalesced ramus is about twice as broad as the outer, lanceolate; the outer 



') In the specimen B. it is a little shorter. 

 -) Stebbing 1. c. p. 1324. 



