2 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM 



LISTS PREVIOUSLY PUBLISHED 



The first list of copepods from the Woods Hole region was made 

 by Dr. W. M. Wheeler and was published in the Bulletin of the 

 United States Bureau of Fisheries for 1899, which appeared on 

 August 30, 1900. It contained 30 species and was entirely confined 

 to free-swimming marine forms. 



The second list appeared as two papers by Dr. L. W. Williams 

 upon the copepods of the Narragansett region of Khode Island. 

 The first paper was published in the American Naturalist (vol. 

 40, 1906) and included 28 species, 26 of which were free swimming, 

 the other two parasitic. 



The second Williams paper appeared in the Thirty-seventh Annual 

 Report of the Commissioners of Inland Fisheries of Rhode Island, 

 1907, and contained 43 species of copepods. Of these, 8 were para- 

 sitic, 3 were fresh-water species of the genus Cyclops^ and the rest 

 were free-swimming marine forms. 



The third list was published by Dr. R. W. Sharpe in the Proceed- 

 ings of the United States National Museum (vol. 38, 1910). It 

 included all the species in the preceding lists and enough others to 

 bring the total up to 59.^ 



Dr. C. J. Fish published a fourth list in 1925 in volume 41 of the 

 Bulletin of the Bureau of Fisheries. His observations were practi- 

 cally confined to Great Harbor, Woods Hole, and his list contained 

 42 species, 12 of which had not been previously reported. These 

 were all free-swimming marine forms with the exception of a single 

 parasitic species. If the 12 new forms be added to Sharpe's list of 

 59 they bring the total up to 71. 



In addition to these regular lists there have been published various 

 papers by the present author on North American parasitic copepods, 

 including a number of parasitic species collected at or near Woods 

 Hole. These are found to represent in all 77 species, and if they be 

 added to the above total of 71 they bring the number of copepods of 

 all kinds, thus far reported from the region now under discussion, up 

 to 148. In the present paper the number has been increased to 373 

 species divided into 178 genera. 



SOURCE OF THE PRESENT MATERIAL 



During the summers and early in the autumns of the years from 

 1881 to 1885, inclusive. Dr. Richard Rathbun, late assistant secretary 

 of the Smithsonian Institution, made an extensive collection of cope- 

 pods in the region around Woods Hole. A portion of his specimens 

 were obtained by surface towing, and the remainder were taken 



1 By some curious mistake Sharpe included a species, Bradya litnlcola, reported by 

 Herrick from the coast of the Gulf of Mexico. 



