AND THE WEST COASTS OF THE UNITED STATES. 



133 



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'95". Results of Explorations in western Canada and the Northwestern United States. Bull. U. S. Fish 



Comm. for 1894, vol. 14, pp. 101-132, pis. 5-8. 

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'87. Manuel de Conchyliologie et de Pale'ontologie Conchyliologique. Paris, 8, xxiv + 1369 pp., 23 pis. 

 Lawson, A. C. 



'93. Post-pliocene Diastrophism of the coast of Southern California. Bull. Dept. Geology, Univ. Califor 



nia, vol. 1, no. 4, pp. 115-160, pis. 8-9. 

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'95. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the years 1872-76. A 



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X. APPENDIX. 



,TABLE I. 



CORRELATION BETWEEN HEIGHTS AND WIDTHS OF RIGHT VALVES (TAMPA). 



n = 501. Xfc 17.3439 mm.; =1.327 mm. 

 .4 =54.2475 mm.; <r =3.930 mm. 



