KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 161 



mina is irregularly conical; the lower part is covered with long bristles, and the apex 

 armed with a strong spine. 



The maxillipeds. The basal portion is like that in the preceding species, but the 

 lateral lamina? are somewhat broader at the apex, and the median lobe is a little larger. 



The percBon. The first segment is a little shorter than the second ; the seventh seg- 

 ment is the longest of all. 



The epimerals in the first four and seventh pairs of pereeopoda are as long as 

 the under margins of the corresponding segments; those of the fifth and sixth pairs are a 

 little longer. The epimerals in the first four pairs are about as deep as long; those of 

 the fifth and sixth pairs are longer than deep; that of the seventh pair is fully twice as 

 long as deep. 



The branchial sacks are fixed to the second and four following pairs of peraeopoda; 

 they are very broad and thick, and a little shorter than the femora of the corresponding pairs. 



The first pair of perceopoda, (PI. IX, fig. 25) are fully as long as the second. 

 The femur is not very broad, with almost straight margins; the upper and anterior parts 

 are occupied by strongly developed glands; the front side is cleft by a long narrow groove 

 as usual; the lower hind corner is armed with five or six strong bristles. The genu is 

 as long as broad; the lower hind corner is provided with six long bristles. The tibia 

 is much longer than the genu; the lower hind part is produced, and the produced portion is 

 longer than the rest of the joint, the margins being fringed with long bristles. The carpus 

 is considerably longer than the two preceding joints together, and less dilated than in 

 the preceding species; the front margin is straight, armed at the apex with two long bristles 

 and some shorter ones; the hind margin is slightly convex showing some few notches, 

 each notch carrying a stout bristle; the lower corner is a little produced, rounded, and armed 

 with a great number of strong, but comparatively short, bristles; the sides of the joint are 

 densely covered with short spine-like bristles. The metacarpus is considerably shorter 

 than the carpus, and covered all over with short, strong, spine-like bristles; the front 

 margin is strongly convex; the hind margin is slightly concave, without notches, and 

 strongly serrated, the teeth being minute and equal. The dactylus is long, curved, and 

 half as long as the metacarpus; the hind margin is serrated. From the femur the 

 glands reach through the intermediate joints to the apex of the metacarpus. 



The second, pair (PI. IX, fig. 26) reach only a little farther than to the apex of the 

 tibia of the third pair. The femur is broad, and almost as long as the four following joints 

 together; the front margin is strongly convex; the hind margin is irregularly curved, and the 

 lower corner is provided with five or six tolerably long bristles. The genu is as long 

 as broad; the lower hind corner set with five or six bristles. The tibia is much longer 

 than the genu; the lower hind part is produced, but not as much as in the first pair; the 

 margins are densely fringed with long bristles. The carpus is fully as long as the two 

 preceding joints together, dilated, and produced ; the front side of the carpal process is only 

 a little shorter than half the hind margin of the metacarpus, and densely fringed with 

 stout bristles; the front margin of the carpus is nearty straight, scarcely notched, and armed 

 at the apex with half a dozen long bristles; the hind margin is slightly concave without 



K. Sv. Vet. Akad. Handl. Band. 22. N:o 7. ^ 



