Explanation of the Plates. 



pi. I. 



Latonopsis serricauda, G. O. Sais. 



Fig. 1. Adult ovigerous female, viewed from left side (antennas re- 

 flexed) ; magnified 56 diameters. 



» 2. Same, ventral view (antennae extended). 



i> 3 Same, dorsal view. 



» 4. Left antennula, magnified 80 diameters. 



» 6. Left antenna (basal part of stem not delineated). 



» 6. Posterior extremity of body, viewed from left side. 



PL II. 

 Diapliaiiosoma Sarsii, Eichard. 



Fig. 1. Gravid female, ventral view; magnified 100 diameters. 



y> 2. Female with resting ova, viewed from left side (antennae 

 reflexed). 



» 3. One of the resting ova, highly magnified. 



» 4. Left antenna (stem not fully delineated), magnified 155 dia- 

 meters. 



» 6. Posterior part of carapace, together with the hind part of 

 the included body, viewed from left side. 



t> 6. Caudal claw, more highly magnified. 



» 7. Adult male, viewed from right side (antennae reflexed) ; mag- 

 nified 100 diameters. 



» 8. Eight antennula, magnified 155 diameters. 



» 9. Extremity of a leg of 1st pair, exhibiting the terminal claw ; 

 magnified 300 diameters. 



» 10. Eight sexual appendage. 



