12 Carl Bovallius, 



short, plumose hairs at the lower end. The dactylus is a little shorter 

 than the metacarpus (8: 11), pedunculated, of the same shape as in the 

 preceding pair. 



The fifth pair [PL I, fig. 15]. The femur is rounded, nearly cir- 

 cular, a little longer than broad (13: 11), the hinder margin is quite 

 smooth, the anterior carrying three short hairs. The genu is short, the 

 tihia broad, three times longer than the genu, the hinder margin feebly 

 curved, with a short spine at the lower corner, the anterior margin 

 straight with 3 — 4 spines. The carpus equals the tibia in length, and is 

 linear, with 4 — 5 spines at the anterior margin. The metacarjms is longer 

 and narrower, linear, with two pairs of spines on the anterior, and a simple 

 hair at the posterior margin; at each of the lower corners there is a long, 

 straight spine. The dactylus is very long, nearly straight, sharp-pointed, 

 not pedunculated, only a little shorter than the metacarpus (19: 23). 



The sixth pair [PI. I, fig. 16] are longer than the fifth but of the 

 same structure. The femur is longer than broad (29: 23), and carries a spine 

 at the lower anterior corner. The metacarpus is quite as long as the 

 femur, with four pairs of spines along the anterior margin, the last 

 pair at the lower corner, two short spines at the hinder margin, and a 

 longer one at the lower hinder corner. The dactylus is only a little 

 shorter than the metacarpus [11: 14], straight, sharp. 



The seventh pair [PI. I, fig. 17] are about a fifth shorter than the 

 sixth; the femur is broad, laminar, posteriorly produced downwards, the 

 projection reaching nearly to the middle of the tibia; the hinder margin 

 is curved, smooth; the anterior margin is feebly curved, nearly straight. 

 The genu is short; the tibia of the same form as in the two preceding 

 pairs, but carrying only two spines at the lower corners. The carpus 

 is of the length of the tibia, with three or four spines along the an- 

 terior margin and two on the posterior. The metacarpus is longer and 

 narrower, but not equalling the femur in length; it carries four single 

 spines along the anterior margin and one on the posterior. At the 

 lower, hinder corner there are two straight spines. The dactylus is 

 straight, long, sharp, but does not fully equal two thirds of the length 

 of the metacarpus (15: 24). 



The pleon. The segments are large, equal in length, each as long 

 as the sixth pereional segment. The flanks of the segments reach tole- 

 rably deep, the under margin is rounded; they end posteriorly in a not 

 very sharp angle. The pleon equals the first five pereional segments 

 together in length. 



