BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 11. N:o 17. 9 
The epimerals (P1. I. fig. 2) of the second and third seg- 
ments are the smallest, equal, the ones of the fourth segment 
are longer, the epimerals of the three last segments longer, 
nearly equal, all almost rectangular with the lower anterior 
corner rounded and the posterior sharp-pointed, but not pro- 
jecting. They occupy all the whole length of the corresponding 
segments. They are totally smooth without ridges or excava- 
tions. 
The first pair of pereiopoda (P1. I. fig. 4). The femur 
is comparatively narrow with some few ciliated bristles. The 
genu is as long as the tibia, unarmed, the tibia carries some ' 
short spines at the inner margin, the carpus is shorter than 
the tibia, the metacarpus is nearly twice as long as the 
carpus, totally unarmed. The dactylus is stout, strongly cur- 
ved, longer than the two preceding joints, it impinges against 
the anterior corner of the tibia. The dactylus is carinated. The 
second and third pairs are as usual similar to the first. The 
four posterior pairs are long, slender, spinigerous. From the 
fourth to the sixth pair they increase in length, the-seventh 
is equal to the sixth. The femora are elongate, linear, not 
very broad, the following joints are nearly equal in length, 
carrying short spines along the inner margin and longer 
ones around the lower margins. The dactyli are short, feebly 
curved. (Pl. I. fig. 5 and 6). 
The pleon is nearly twice as broad as long (23:13); the 
first segment is almost totally covered by the last pereional 
segment, only a little of the lateral parts being visible. The 
second, third and fourth segments are equal in length, the 
third the broadest; the fifth is a third longer than the prece- 
ding. The lower parts of the four first segments form on 
the underside a frame with sharppointed corners (P1. I. fig. 
7). The pleon is a little longer than the two last pereional 
segments together (12:11). 
The second pair of pleopoda (P1. I, fig. 8) carry an uncom- 
monly long, styliform process, without hairs. 
The urus is tongue-shaped, broader at the base than long 
(5:4), the sides are rounded, the posterior end not very sharply 
pointed. The margin is serrated (P1. I. fig. 9), the teeth 
again serrated and separated from each other by stout, strong, 
obtuse spines, the margins are fringed with long, plumose hairs, 
fixed at the underside of the pleon a little behind the edge 
