FAMILY : HYDATINIDAE
Hydatina physis (Linne, 17580
40mm--31 July 05
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Close up of head region showing one of the two Hancock's Organs. These are “chemosensory organs” and are
better developed in Hydatina than any other cephalaspidean.

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50mm--16 Oct 06

© All images Copyright 2010 Denis Riek. All rights reserved.