Scientific Results of the Expedition to the Gulf of California 

 in Charge of C. H. Townsend, by the U. S. Fisheries Steam- 

 ship 'Albatross' in 1911. Commander G. H. Burrage, U. S. N., 

 Commanding. 



Published by Permission of the U. S. Commissioner of Fisheries 



XII 



Echinoderms From Lower California, with Descriptions 

 of New Species: Supplementary Report 



By Hubert Lyman Clark 



BULLETIN 



OF 



THE AMERICAN MUSEUM OF NATURAL HISTORY 



Vol. XLVIII, Akt. VI, pp. 147-163 

 New York 

 Issued October 5, 1928 



