Vol. XXIII, pp. 157-164 December 6, 1910 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON ON A COLLECTION OF FISHES FROM THE LOWER POTOMAC, THE ENTRANCE OF CHESAPEAKE BAY, AND FROM STREAMS FLOWING INTO THP]SE WATERS.* BY BARTON WARREN EVERMANN AND SAMUEL FREDERICK HILDEBRAND. U. S. Bureau of Fisheries. /■. The collection upon \vhich this paper is based is a miscella-neous one, made chiefly in behalf of the U. S. Fish Commission at various times during the years 1892 to 1900, by the U. S. Fisheries Steamer Fish Hawk, and by Messrs. M. C. Marsh, W. C. Kendall, W. H. Sterling, E. C. Starks, W. T. Lindsay, A. Marmaduke, E. Daws, and Capt. L. G. Harron. This material remained unstudied until recently when the present writers went over the entire lot. It was found to contain sev-eral interesting species, and enables us to record an extension of the geographic range of a number of species beyond their previously recorded limits. It is hoped that the publication of this list may prove of interest to students of the fish fauna of the region covered by the collection. The waters and localities from which specimens have been obtained by the above named collectors are as follows: Potomac River at Jackson City, Alexandria, and Mathias Point, Ya.; Bryans Point, Somerset Beach, Riverside, Blacki-stone Island, Piney Point, and St. Georges Island, Md.; Matta-pony River at Milford, Ya.; Blackwells Mill Creek, Cockerel Creek, Cape Charles City, Mobjack Bay, Gloucester Point, Buckroe Beach, Old Point Comfort, Hampton Roads, Hampton Creek, Ocean View, and Cape Henry, Ya. * Published by permission of Hon. George M. Bowers, U. S. Commissioner of Fish-eries. 37— Pkoc. Biol. Soc. Wash.. Vol. XXIII. 1910. U57)