BRITISH STALK-EYED CRUSTACEA. 203 
species of this genus. In S. rostratus the young specimens are a 
dirty yellow, while in S. longirostris we find them either dirty 
brown or nearly approaching puce in colour. 
Fig. 2a. Portion of under side of male S. egyptius, three times magni- 
fied, showing pedipalps, epistome, rostrum, and antenne. Fig. 26. Same 
view of female. Fig. 2c. Lateral view of same portion of male. 
As regards the embryology of this species, we have had as yet 
no opportunity of making any observations, for, like S. rostratus, 
the larger number of those taken were males; but the females 
recently obtained (April) are full of immature ova. 
