Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 9, 1978 | public
Journal Article

Calcareous Deposits in the Renal Sac of a Molgulid Tunicate

Abstract

Weddellite (calcium oxalate dihydrate) and calcite (anhydrous calcium carbonate phase) are components of concretions in the renal sac of the ascidian tunicate Molgula manhattensis. The presence of weddellite along with urate in the concretions suggests a resemblance to human kidney stones, although, unlike the latter, the concretions in Molgula do not seem to be pathologic deposits.

Additional Information

© 1978 American Association for the Advancement of Science. Received 24 January 1978; revised 28 March 1978. We thank M. Dekkers and J. Muramoto for technical assistance and W. Mays for editorial advice. S. Weiner took the scanning electron micrographs shown in Fig. 1. A portion of this work was included in a doctoral thesis submitted to Stanford University (M.B.S.). We acknowledge the support of NIH training grant GM 365-14 (M.B.S.), a Sigma Xi grant-in-aid (M.B.S.), a Miller research fellowship (M.B.S.), and NSF grant DES 76-03725 (H.A.L.). California Institute of Technology contribution No. 3030.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023