I reccomend you try to find Norma Hollebeke previously of jx01 at utep.bitnet but probably now at zoo.toronto.edu, who recently had a note in Parasitol. Today relating to Blastocystis. Mark -- Mark E. Siddall "In saying what is obvious, never choose cunning. mes at vims.edu Yelling works better." - C. Ozick Virginia Inst. Marine Sci. Gloucester Point, VA, 23062