Information on Lacrymaria

[Shelly Gorenstein]

I am seeking information about Lacrymaria.

1) Suggested recent readings about the physiology of this organism.

2) Info on maintaining cultures of Lacrymaria 

3) Sources of different species of Lacrymaria

and finally

4) Any information on the mechanisms which Lacrymaria uses to extend,
position and retract is amazingly long neck.

Thank you, kindly.

Charles Gorenstein

gaia at fia.net