KONGL. SV. VET. AKADEMIENS HANDLING AK. BAND. 22. N:0 7. 51 



is longer than the earpus, feebly bent, the front margin denticulated as in the preceding 

 pair; the hinder margin is microscopically serrated. The dactylus is feebly bent, fully 

 equalling a tenth of the length of the metacarpus. The length of the leg is 35 mm. 

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



The seventh pair (Pi. Ill, fig. 13 and 14) are shorter than the third pair. The 

 femur is much 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 with ten unequal teeth, the hind 

 margin with six very low teeth, and the inner margin with 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 smooth; on the sides there are some scattered 

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

 than the 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 transversal 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 length of the leg is 16,2 mm. (spec. B.) or 17,5 mm. (spec. A). 



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

 spine-like prominences. The lateral ridge 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 peraeonal segment. The length of the whole pleon is about 11 mm. 



The pleopoda. The peduncles are long, narroAv, 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 following together; the outer 

 ramus of the first pair has seventeen joints; the first joint is provided with thirteen seta; 

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

 ramus has fifteen joints; the first joint has eighteen setse on the inner margin, and nine 

 on the outer. I could not detect any trace of »coupling spines» 2 ) or »cleft setaj». 



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. A). 



The first pair of uropoda (PL III, fig. 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 with ten teeth, the anterior margin is smooth, 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. 

 2 ) Stebbing 1. c. p. 1324. 



