154 Roosevelt Wild Life Bulletin 



Plate 4. Plankton Axgae of Palisades Paek 



(All figures x 460) page 



Fig. I Aphanocapsa elachista var. planctonica 140 



Fig. 2 Aphanocapsa nidulans 140 



Fig. 3 Trichodesmiiim lacustre 1 40 



Fig. 4 A nabaena Bornetiana 140 



Fig. 5 A nabaena fios-aquae 1 40 



Fig. 6 Anabaena Lemmermanni 140 



Fig. 7 Mallomonas caudata 140 



