Changes in the Invertebrate Fauna, Apparently Attributable to Salinity Changes, in the Bays of Central Texas Author(s): Robert H. Parker Source: Journal of Paleontology, Vol. 29, No. 2 (Mar., 1955), pp. 193-211 Published by: SEPM Society for Sedimentary Geology Stable URL: http://www.jstor.org/stable/1300466 . Accessed: 18/06/2014 21:28 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact
[email protected]. SEPM Society for Sedimentary Geology is collaborating with JSTOR to digitize, preserve and extend access to Journal of Paleontology. http://www.jstor.org This content downloaded from 132.174.255.3 on Wed, 18 Jun 2014 21:28:38 PM All use subject to JSTOR Terms and Conditions JOURNAL OF PALEONTOLOGY A publication of THE SOCIETYOF ECONOMICPALEONTOLOGISTS AND MINERALOGISTSand THE PALEONTOLOGICALSOCIETY with the generous support and cooperation of THE AMERICAN ASSOCIATIONOF PETROLEUM GEOLOGISTSand THE GEOLOGICALSOCIETY OF AMERICA VOLUME 29 MARCH, 1955 NUMBER 2 CHANGES IN THE INVERTEBRATE FAUNA, APPARENTL' ATTRIBUTABLE TO SALINITY CHANGES, IN THE BAYS OF CENTRAL TEXAS1 ROBERT H. PARKER Scripps Institution of Oceanography,La Jolla, California ABSTRACT-Previousstudies on the invertebratefauna of the bays of central Texas have been undertakenduring periods of very low or highly variable salinity condi- tions.