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The feeding mechanism and structure of the gut of Owenia fusiformis delle Chiaje

Published online by Cambridge University Press:  11 May 2009

R. Phillips Dales
R. Phillips Dales
Affiliation:
Department of Zoology, Bedford College, University of London
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Extract

Owenia may feed either by ciliary means or by swallowing sand and detritus. The gut consists of three main parts, a fore-gut or stomach which is secretory, a non-secretory mid-gut region which is absorptive, and a hind-gut which is non-secretory, non-absorptive and serves to elaborate and store the faecal pellets. The mid-gut contains coproporphyrin III and also phaeophorbide-6, to which the green colour is due. The green pigment in the epidermis is also phaeophorbide-ft, but phaeophorbide-a is apparently absent from the body.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 36 , Issue 1 , February 1957 , pp. 81 - 89
Copyright
Copyright © Marine Biological Association of the United Kingdom 1957

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