KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 69 



front margin is indistinctly serrated, the hind carries some short spines. The dactj^lus 

 is straight, eqiialling a fourth of the length of the metacarpus. Glan ds in all the joints. 



The sixtli pair are a little shorter than the iifth pair, but almost similar in shape. 



The seventh pair (Pl. VI, fig. 8 and 9) are longer than the first pair, but con- 

 siderably shorter than the sixth pair. The fem ur is almost four times as long as broad, 

 the margins are sraooth, with a narrow groove on the inner side of the hind margin. 

 The genu is as long as broad, smooth. The tibia, is not half as long as the femur, 

 a little wider at the lower end. The carpus is nearly twice as long as the tibia, linear, 

 smooth. The metacarpus is a little more than half as long as the carpus, linear, with 

 some bristles at the apex. The dactylus is stout, curved, as long as the breadth of the 

 metacarpus. Glan ds in all the joints. 



The plei?n is twice as long as the doi-sal margin of the last perteonal segment; 

 the iirst segment is the longest. The pleon and urus together are longer than a fifth of 

 the diameter of the globe. 



The pleopoda. The peduncles are about as long as the rami, cylindrical. The 

 coupling spines and the cleft bristle are similar to those in the preceding species. The 

 outer ramus has nine, the inner eight joints. 



The urus is a little shorter than the last two pleonal segments; the first ural 

 segment is almost as long as the coalesced second and third together. A little above the 

 middle of the coalesced segment runs a feeble line on the under- side of the segment in- 

 dicating the limit between the original second and third segments. 



The uropoda (Pl. VI, fig. 10). The peduncle of the first pair is as long as the 

 peduncle of the second, thick, a little broader below, with three short bristles along the 

 inner margin. The inner ramus is elongate-lanceolate, fully eight times as long as broad, 

 much longer than the peduncle, carrying minute spines along both mai-gins; the outer 

 ramus is almost as long as the peduncle, more than half as long as the inner ramus, and only 

 a little narrower, smooth on the outer margin, and armed with minute spines along the inner. 

 The second pair has the peduncle similar to that of the first pair. The inner ramus is 

 elongate-lanceolate, iive times as long as broad, and much longer than the peduncle, the 

 margins are fringed with minute spines; the outer ramus is shorter than the peduncle, but 

 more than half as long as the inner ramus, and much narrower; it is smooth on the straight, 

 outer margin, and provided with minute spines on the lower half of the inner margin; the 

 second pair reach farther backwards than the first pair. The peduncle of the third pair 

 is scareely a fourth broader than those of the preceding pairs, not twice as long as broad, 

 and shorter than the last ural segment. The inner ramus is elongate-lanceolate, about 

 four times as long as broad, the outer margin is serrated, the inner fringed with minute 

 spines; the outer ramus is as long as the peduncle, more than half as long as the inner 

 ramus, and half as broad; the outer margin is straight and smooth, the inner is finely 

 spinulous. 



The telson is more long than broad, obtusely rounded behind, full)' as long as the 

 breadth of the peduncle of the last pair of uropoda, and more than half as long as the 

 peduncle. 



