Hi, The creature that I found in the water you gave me had some tiny cilliates, and a big one (1-3 mm) called Spirostomum. Its has rows of cillia along its elongated body, lots of contractile vacoules, and blunt ends. It contracts if touched of bumped. Hope this helps. Photo to follow. dave ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe gsas-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/gsas-member/