| Habrotrocha cf bidens, swimming (not whirling) specimen. (1) |
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| Habrotrocha cf bidens, species with short rostrum while creeping. (1) |
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| Habrotrocha cf bidens, left image: head of swimming specimen. Left: focal plane on the upper lip Right image: Head of whirling specimen, focus plane on the upper lip. (1) |
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| Habrotrocha cf bidens, foot. Left: ventral view; focus plane on the -sometimes prominent-dorsal toe (DT) which has a tip and thus the confusion with Habrotrocha tripus is likely. (1) |
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| Habrotrocha cf bidens,ramate trophi; left: (cephailc view) with dental formula 2/2.; right:caudal view; ramus length (RaL):21µm. (2) |
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| Sample courtesy of Dr. Jan Rosenboom, inspiring-nature.com. |
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