264 W. Lilljeborg on the Genera Peltogaster and Liriope. 



very small, forming a sort of minute plate concealing the base 

 of the last pair of feet. Head a little broader than the following 

 segment ; penultimate segment longer than the preceding one, 

 coarctate and rounded behind. Beneath the lateral margins of 

 the thoracic segments there are small acuminate appendages, 

 bent backwards, which are, no doubt, epimera. 



Eyes usually none ; sometimes a reddish-brown one on each 

 side (fig. 5) : when no eyes are present, there are usually two 

 cells, with reddish-brown pigment, in their place. Similar pig- 

 ment is seen in several parts of the body, especially behind. 



Antenna? of the first pair (fig. 4 a) very small, quadriarticu- 

 late, having about five setae, of which two are apical. Antennae 

 of the second pair (fig. 4 b) large, half as long as the body with- 

 out the apical setae, quinquearticulate, with the third joint longer 

 than the rest, and the last joint having three or four apical 

 setae, of which one is very long. Region of the mouth produced ; 

 oral aperture forming a transverse fissure. On each side of the 

 mouth there is a mandibuliform appendage. 



Thoracic feet (fig. 4 c) six pairs, attached to the six thoracic 

 segments ; all, except the sixth pair, similar, but the posterior 

 pairs a little longer than the anterior. The five anterior pairs 

 somewhat cheliform, with a rather large, nearly oval palm, bi- 

 denticulate within, and a curved, acute, apical claw. Sixth pair 

 of feet longer and more slender, and not cheliform (fig. 4d) ; 

 palm long and attenuated ; claw long, nearly straight, and not 

 retractile. 



Abdominal feet five pairs, attached to the five anterior seg- 

 ments of the abdomen, all similar, except that the posterior are 

 a little shorter ; they are biramose, with the scape two-jointed, 

 and the branches nearly equal, the outer furnished with three, 

 and the inner with two, long, apical, ciliated setae (fig. 4 e). The 

 last pair, or caudal feet (fig. 4/), are larger and stouter, fur- 

 nished with several large and strong ciliated setae, and also bi- 

 ramose. The scape of these is of one thick joint, obliquely 

 excised at the apex, and furnished beneath with one or two 

 slender setae. The outer branch is a little thicker and shorter 

 than the inner one, and has three stout, curved, apical setae; 

 the inner one is obliquely excised at the apex, and furnished 

 with two slender setae. At the base of the inner branch a long 

 and nearly straight seta is attached to the scape. 



No intestine could be clearly seen, but in its place there was 

 a patch of a brownish and reddish colour, especially behind; 

 and here and there in the body were larger and smaller oily 

 vesicles, no doubt the residue of the yelk. 



On comparing this young animal with the Liriope pygmcea of 

 Rathke, their relation is so close, that the differences, from the 



