Plate 



(Abbreviations 



'ig. 5. 



Fig. 4 Rana esculenta, 



Fig. 5 Rana esculenta, 



witlj 



Fig. 6 Amblystoma tigrinum, me^^'^' 



of ^^d) 



Fig. 7 Amblystoma tigrinum, mec 



figs 

 Fig. 8 Amblystoma tigrinum, mec 



