30 Carl Bovallius, 



the maxillipeds are not ciliated, quite smooth; the inner himinœ are 

 more distinct than in the adult animal. 



The pereion. The first segment is shorter than the sixth and se- 

 venth together. The surface of the pereion shows the insertion of the 

 muscles, and is a little granular. 



The epimerals [PL III, fig. 61] are smaller than in the adult animal. 



The first pair of -pereiopoda [Pi. Ill, fig. 64] are proportionall}^ 

 larger, and the carpus not transformed as in the adult animal; the meta- 

 carpus with the anterior angle directed forwards as usual, and thus the 

 dactylus articulating in its ordinary place; the lower margin of the meta- 

 carpus shows only a few very minute teelh; the dactylus is shoi ter than 

 the lower margin of the metacarpus. 



The second pair [PI. Ill, fig. 65]. The genu is shorter than half 

 the femur; the metacarpus is nearly ovate, and the dactylus pro- 

 portionally longer. 



The third and fourth pairs [PI. Ill, fig. 66] have the tibia shorter 

 and not so much dilated as in the adult animal. 



The fifth, sixth, and seventh pairs have the femora very narrow 

 and the following joints smooth, not serrated. 



The pleon is longer than the first four pereional segments. 



The pleopoda carry pointed flagella; the peduncles are very long. 



The iirus [PI. Ill, fig. 67] is as long as the first two pereional 

 segments, and nearly as long as the first two pleonal ones. The ex- 

 cavation at the dorsal side of the first segment is very distinct; the first 

 segment is as long as the two following together. The third segment 

 is only a little longer than the second. 



The first pair of itropoda with the rami narrower, without serra- 

 tions; at the lower end of the outer ramus there is a small notch, indicat- 

 ing an earlier division or articulation of the ramus. The same occurs 

 in the second pair. 



The third pair do not reach beyond the tips of the second pair; 

 the rami are scarcely twice longer than the peduncle. The outer ramus 

 consists of two joints, as in Syn o pi a, the terminal joint equals a third of 

 the length of the basal joint. The inner ramus is undivided, smooth. 



The telson is broad, not rounded, deeply excavated, nearl}' bifid 

 at the middle of the posterior margin. 



Length. 5 m.m. 



Colour. White as ivory; the eyes dark brown. 



