174 REPORT OF NATIONAL MUSEUM, 1884. 



Chariton, and Hundred and Two Rivers, in Iowa, were investigated, 

 and the Missouri, La Mine, and Osage, in Missouri. After a time I 

 was obliged to return to Indiana for a few days, and Professor Gilbert, 

 with Mr. Meek's assistance, continued the work in tributaries of the 

 Neosho, Osage, White, Niaugua, and Gasconade, in Southern Missouri. 

 I rejoined them at Eureka Springs, in Arkansas, where we made large 

 collections in White Eiver. Here Mr. Meek left us, and Mr. Gilbert 

 and I proceeded to Fort Smith, where we made collections in Lee's 

 Creek, the Poteau River, and the Arkansas. Proceeding southwest- 

 ward from Little Rock, we explored in succession the Saline River at 

 Benton, the Washita River at Arkadelphia, the Red River at Fulton, 

 the Sabine River at Longview, the Trinity River at Dallas, the Lam- 

 pasas and Leon Rivers at Belton, the Colorado River at Austin, the Rio 

 Blanco and San Marcos Rivers at San Marcos, and the Rio Comal at 

 New Braunfels. From New Braunfels we returned to Washington. 



The explorations in 1884 are in several respects the inost extensive 

 yet undertaken in the fresh waters of the United States. As results 

 of the summer's work a considerable number of new species have been 

 added to our lists. The range of many species hitherto supposed to be 

 rare and local has been greatly extended, and numerous species sup- 

 posed to be well distinguished have been shown to be geographical 

 varieties of others. We have been enabled in many cases to recognize 

 subspecies among our fresh-water fishes and to properly distinguish 

 these from individual and accidental variations. This work cannot be 

 fully done until all our interior waters have been explored. There still 

 remain many hydrographic basins in which no collections have yet 

 been made. 



r£sum£. 



I give here a classified table of the principal localities at which col- 

 lections have been made : 



Marine. 



Atlantic shores : 



Wood's Holl, Mass. 



Charleston, S. C. (Gilbert.) 



Beaufort, N. C. (Jordan, Gilbert, and Brayton.) 



Galveston, Tex. 



Pensacola, Fla. (Jordan and Stearns.) 



Cedar Key, Fla. 



Key West, Fla. 



Havana, Cuba. 



Colon (Aspinwall), United States of Colombia. (Gilbert.) 



Pacific : 



Panama, United States of Colombia. (Gilbert.) 

 Mazatlan, Mexico. (Gilbert.) 



