122 CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. HYPERIID^. 



Euiulopls Lovéni. 



The fifth, sixth, and seventh ]}airs are equal in length and similar in shape; they 

 are a little shorter than the thircl and fourth pairs. The fe mur is somewhat dilated, as 

 broad at the base as at the apex. The ge nu is more long than broad. The tibia is 

 scarcely longer than the genu; the hind margin is somewhat curved. The carpus is longer 

 than the tibia, but much shorter than the genu and tibia together. These iirst four 

 joints are richly provided with long hairs all around. The metacarpus is shorter than 

 the carpus, but only a little narrower; the front margin is straight, the hind margin 

 feebly curved; it is not dilated at the apex as that in the adult female. The hair-covering is 

 less rich and the hairs are shorter on this joint than on the four preceding ones. The 

 dactylus is stout, strongly curved, equalling in length a third of the metacarpus, at its 

 base there is an outlet for the glands as in the preceding pairs. The glands are well 

 developed in all the joints, except in the dactylus. 



The pleon is somewhat longer than the last four perteonal segments together. The 

 first pleonal segment is considerably longer than the last perajonal one, but shorter than 

 the last two perajonal segments together. The segments of the pleon are equal in length, 

 the lateral parts are evenly rounded. The hair-covering is not as i'ich as on the perteon; 

 it is more dense on the first pleonal segment than on the two last ones. 



The pleopoda (Pl. VIII, fig. 15 — 17) are robust. The peduncle is longer than the 

 rami, the front side is vevy convex, bulging, the hind side is flat; fi-om the inner lower 

 corner projects downwards a broad, tongue-shaped process; at the inner angle between this 

 process and the stem of the peduncle there arise two short, stout coupling-spines (Pl. 

 VIII, fig. 16), each consisting of a somewhat bulging, thick stem and a button-like head, 

 just ät the base of this head extend two feebly bent, sharp-pointed hooks. On the first 

 or basal joint of the inner ramus there is a well developed cleft bristle (Pl. VIII, fig. 

 17). The inner ramns of the first pair consists of ten joints, the outer of eleven. 



The urus is longer than the last pleonal segment and very sparingly provided 

 with hairs. The first segment is longer than the last coalesced one. The last segment 

 is more broad than long and shows at the middle on each side a deep notch raarking 

 oif the limit between the coalesced second and third ural segments; there exists, however 

 no line of division on the dorsal, nor on the ventral side. 



The uropoda. The first pair do not reach to the apex of the last pair; the 

 peduncle is tolerably broad, feebly bent, linear, nearly four times as long as broad; 

 the outer and inner margins are fringed with short, slender hairs. The rami are 

 narrowly elongate, sharp-pointed, fringed along both margins with short, slender hairs; 

 the outer ramus is longer than the inner, it equals in length four fifths of the ped- 

 uncle; the inner ramus equals three fourths of the same peduncle. The second pair reach 

 only a little beyond the apex of the peduncle of the last pair; the peduncle is scarcely 

 more than half as broad as that of the first pair, and is more strongly bent; the margins 

 are fringed with short hairs. The rami are narrower than those of the first pair; the 

 margins are fringed with short hairs; the outer ramus is longer than the inner, and equals 

 the peduncle in length. The third pair are more robust than the second pair; the 

 peduncle is broad, a little narrowed at the base; the outer margin is feebly curved, the inner 

 is straight, both are fringed -with short hairs. The rami are comparatively a little broader 



