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Notes on Plymouth Sponges

Published online by Cambridge University Press:  11 May 2009

George Bidder
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Extract

Sycon compressum is one of the long-recognised sponges, that stand refreshingly conspicuous in a group made difficult with doubtful definitions. The unique dermal spicules, and the striking outward form, divide it from other species in a way quite different from that in which Sycon raphanus is divided from S. villosum or Renicra cinerea from Reniera permollis.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 6 , Issue 3 , January 1902 , pp. 376 - 382
Copyright
Copyright © Marine Biological Association of the United Kingdom 1902

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References

page 378 note * Q. J. M. S., vol. 35.Google Scholar

page 379 note * In the drying of marine organisms the external deposit of salt, and internal concentration of brine, must considerably retard ultimate desiccation; though probably with injurious results to organisms whose protoplasm is not adapted to withstand such salinity.

page 380 note * Loc. cit., p. 18, and Proc. R. S., vol. 64, p. 61.Google Scholar