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In this view the mouth is facing the camera and one tentacle trails off to the left. The ends of the beating comb (ctene) rows can be seen.
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The long, retractable tentacles have branches (tentillae) along one side.
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This closeup view of the aboral end shows how the tentacle sheaths angle out from the pharynx. A partly retracted tentacle can be seen on the lower left.
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A few images of Pleurobrachia bachei swimming. A short movie of the movements the species can make while deploying and manipulating its tentacles can be viewed by clicking here.
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Pleurobrachia brachei, about 1 cm diameter, captured from Rosario Strait. This is a side view with the mouth to the right. Some ctene rows, which are beating, can be seen glistening and the row at the top can be seen in side view. The tentacular sheaths and retracted tentacles are to the left. (Photo by: Dave Cowles July 2007)
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Hormiphora cucumis, about 8 cm long, found in tidepool near Cape Flattery. The mouth is to the left and one tentacle can be seen. (Photo by: Dave Cowles, July 2012)
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In this view the dark spots which are in rows along the lobes in line with the ctene rows can be clearly seen.
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This side view of a 1.4 cm diameter individual captured near Coffin Rocks (2014) shows the mouth (pointing toward top right) with the ciliated bands near it.
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Another side view of the same 1.4 cm individual clearly shows the lobes and the mouth, along with the fact that the ctene rows are of different length and only run about 2/3 down the body.
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Bolinopsis infundibulum found in the Friday Harbor Marina, San Juan Island, WA by Janine Fetke July, 2009. Length approximately 2.3 cm. (Photo by: Dave Cowles, July 2009)