BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 10. NIO 11. 7 



louger, the foiirth the longest, longer than all the preceding 

 togetlier. The fiftli joint is a little shorter. The flagelhim 

 consists of 13 joints; the first is the longest, the last one veiy 

 small; they all cariy minute hairs. 



The first segment of the pereion is a little longer than 

 the second (11:10); the following decrease in length down to 

 the seventh, which is almost totally ludden by the sixth. The 

 fourth and fifth segments are the broadest, the first is the 

 narrowest (13 : 10). The second and thiid segments have each 

 a short triangulär spöt on the backside; the fonrth and fifth 

 segments have each a long, elongate-ovate spöt. The lateräl 

 corners of the seventh segment are visible behind the sixth 

 segment. The sixth segment is only half as long as the first. 



The epimerals (Pl. I fig. 3) are all bent inwards nearly 

 rectangnlarly to the sides of the segments, thereby forming as 

 it Avere a frame on the under-side of the body. The epi- 

 merals of the second and third segments are equal in length, 

 ronnded at the corners. That of the foiirth segment is a little 

 longer and feebly pointed at the hinder corner. All the four 

 first epimerals occupy the whole of the sides of the segments. 

 The following two epimerals do not occupy more than three 

 quarters of the length of each segment; they are directed a 

 little more downwards and sharp-pointed. The last epimeral is 

 shorter, sharp-pointed, and does not reach to the posterior cor- 

 ner of the first pleonal segment; it occupies the whole of the 

 length of the segment. 



The first pair of pereiopoda (gnathopoda Sp. Bate) (Pl. I 

 fig. 5). The femur is robust, carrying five richly ciliated bristles, 

 but no spines. The genu is long, longer than the tibia and 

 the carpus together, and longer than the metacarpus. The 

 tibia is armed with 1 — 8 short stout spines. The metacarpus 

 is longer than the two preceding joints, and from its inner 

 margin extends a sharp chisel-formed process of the same 

 structure, but not so broad, as in Aega magnifica, Dana. The 

 dactylus is strong, not carinated. The second and third pairs 

 resemble the first, but the femora carry only 3 — 4 ciliated 

 bristles, and the dactyli are more robust. From the fourth to 

 the seventh pair the legs increase in length. The femora carry 

 long ciliated bristles, the following joints except the dactyli 

 are richly beset with longer or shorter spines. All the joints 

 are broad. (Pl. I fig. 7). 



