Explanation of Plate VI. 



Gammarus pulex (Linne) 



Fig. 1. Last pcrciopod of male, L 49, Togom Tso. 



Figs. 2-4. Pereiopods 3-5 of female, L 49, Togom Tso. 



Figs. 5-7. Pereiopods 3-5 of female, T. 71, Ciuishol. 



Figs. 8-9. Pcrci(>|)i)ds 3 and 4 of male, 1.81. Kliyagar Tso. 



l'"ig. 10. Pereio|)()d 5 of leinale, LSI, Kliyagar Tso. 



I'ig. 11. Pcreiopod 5 of male, L 72, C hushol. 



