A Caltech Library Service

Calcareous Deposits in the Renal Sac of a Molgulid Tunicate

Saffo, Mary Beth and Lowenstam, Heinz A. (1978) Calcareous Deposits in the Renal Sac of a Molgulid Tunicate. Science, 200 (4346). pp. 1166-1168. ISSN 0036-8075. doi:10.1126/science.200.4346.1166.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription
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.
Funding AgencyGrant Number
NIHGM 365-14
Miller Research FellowshipUNSPECIFIED
NSFDES 76-03725
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Caltech Division of Geological and Planetary Sciences3030
Issue or Number:4346
Record Number:CaltechAUTHORS:20151116-155449864
Persistent URL:
Official Citation:Calcareous Deposits in the Renal Sac of a Molgulid Tunicate MARY BETH SAFFO and HEINZ A. LOWENSTAM Science 9 June 1978: 200 (4346), 1166-1168. [DOI:10.1126/science.200.4346.1166]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62145
Deposited By: Tony Diaz
Deposited On:18 Nov 2015 19:40
Last Modified:10 Nov 2021 22:58

Repository Staff Only: item control page