Reports on the dredging operations off the west coast of Central America to the Galapagos, to the west coast of Mexico and in the Gulf of California, in charge of Alexander Agassiz, carried on by the U.S. Fish Commission steamer "Albatross" during 1891, Lieut. Commander Z.L. Tanner, U.S.N., commanding 13 Die Opisthobranchien
Bulletin of the Museum of Comparative Zoology. v. 25, no. 10.
Bergh, Rudolph, 1824-1909
Agassiz, Alexander, 1835-1910
United States. Bureau of Fisheries.
Cambridge, Mass., U.S.A. :Museum of Comparative Zoölogy,1894.
QE809.O6 B492 1894
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