oa African Zoology - Osmoregulation by means of a hitherto unsuspected osmoregulatory organ in two grapsid crabs

Volume 2, Issue 1
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



Parry (1954, 1960), Prosser (1955), and Potts and Parry (1964) all stress that extra-renal routes of water elimination remain to be discovered in the Crustacea. Parry (1960) suggests a number of likely organs, but does not include the diverticula of the alimentary canal present in some Brachyura. Of these diverticula, the posterior opens into the hindgut, and, by virtue of its position, seems unlikely to serve any digestive function. The possibility that this organ is concerned with water excretion was investigated by us.

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