@article {501,
	title = {Ultrastructure of the nuchal organ and cerebral organ in Onchnesoma squamatum (Sipuncula, Phascolionidae)},
	journal = {Zoomorphology},
	volume = {117},
	year = {1997},
	note = {SEE NOTES INCL. ABST. IN FILE \WP\NUCHGERM.PM - CLEARLY DIFFERENT THAT POLYCH. MAYBE N.O. IS NOT CHEMOREC. I.E. MAYBE CEREBR. ORG. IS - AT LEAST IN THIS SP. *INCLUDED UNDER THIS NUMBER ARE 3 OTHER PAPERS BY G.P. \& OTHERS - ALL ON ULTRASTRUCTURE: 1. SEGMENTAL OCELLI OF 2 POLYCHAETES 2. MALE REPRO. ORG. OF POLYCH. 3. PHOTOREC.-LIKE ORGAN IN A POLYCH.},
	pages = {23-31},
	author = {Purschke, G. and Wolfrath, F. and Westheide, W.}
}
