I hope that identification of Trachelomonas species is correct:
Trachelomonas oblonga:
http://www.youtube.com/watch?v=k_QeoDL18dE
(Nikon Plan 100/1,25 / DIC / Panasonic DMC-FX60)
Trachelomonas euchlora:
http://www.youtube.com/watch?v=dqVKGp2172U
(Nikon Plan 100/1,25 / DIC / Panasonic DMC-FX60)
Nassula:
http://www.youtube.com/watch?v=5V4ozZiiMwE
(Olympus Splanapo 40/0,95 / BF / Panasonic DMC-FX60)
Trachelomonas:

