Identifying a bell-shaped organism

Michael Bell michaelb65 at netzero.net
Thu Jul 13 11:48:34 EST 2000


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I'm trying to identify a single-celled organism I've found in samples of =
rainwater runoff taken from
road gutters, puddles, etc.  It appears to consist of a flared, or =
bell-shaped, body and is attached
to an anchoring point by a long, thin tubule.  Occasionally, the =
organism will contract violently into
a sphere, remaing clenched like this for several seconds before opening =
again and resuming its
feeding.  Feeding seems to be accomplished by fanning flattened =
projections in front of the flared
opening, drawing water inside.  After mitosis, one of the organisms =
swims away at high speed, using
the same fanning technique used for feeding.  Any info would be =
appreciated, as well as reccomendations
for a good reference book for identifying protozoans.

                                                                         =
                           Michael Bell

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<DIV><FONT color=3D#000000 size=3D2>I'm trying to identify a =
single-celled organism=20
I've found in samples of rainwater runoff taken from</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>road gutters, puddles, etc.&nbsp; It =
appears to=20
consist of a flared, or bell-shaped, body and is attached</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>to an anchoring point by a long, =
thin=20
tubule.&nbsp; Occasionally, the organism will contract violently=20
into</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>a sphere, remaing clenched like this =
for several=20
seconds before opening again and resuming its</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>feeding.&nbsp; Feeding seems to be =
accomplished=20
by fanning flattened projections in front of the flared</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>opening, drawing water inside.&nbsp; =
After=20
mitosis, one of the organisms swims away at high speed, =
using</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>the same fanning technique used for=20
feeding.&nbsp; Any info would be appreciated, as well as=20
reccomendations</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>for a good reference book for =
identifying=20
protozoans.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000=20
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Michael Bell</FONT></DIV></BODY></HTML>

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