44 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 



P. 274. Notes on birds collected during the summer of 1880 in Alaska 

 and Siberia. By Taiieton H. Bean. 



pp. 144-173. 



P. 275. Outlines of a monograph of the Cygninae. By Leonhard 

 Stejneger. 



pp. 174-221, 16 figs. 



P. 276. Notes on the habits and rearing of the axolotl, AmUystoma 

 mexicanum. By M. Carbonuier. 



pp. 221-222. 



P. 277. Description of a new species of Uranidea ( Uranidea polli- 

 caris), from Lake Michigan. By David S. Jordan and 

 Charles H. Gilbert. 



pp. 222-223. 



P. 278. Observations on four mules in milk. By Alfred Duges. 



pp. 223-225. 



P. 279. On Lagopus mutus Leach, and its allies. By Lucien M. 

 Turner. 



pp. 225-233. 



P. 280. Genera of the Scolopendrellidss. By J. A. Ryder. 



p. 234. 



P. 281. A list of the species of fishes recorded as occurring in the Gulf 

 of Mexico. By G. Brown Goode and Tarleton H. Bean. 



pp. 234-240. 



P. 282. Notes on fishes observed about Pensacola, Florida, and Gal- 

 veston, Texas, with description of new species. By David 

 S. Jordan and Charles H. Gilbert. 



pp. 241-307. 



P. 283. A review of the Syngnathinae of the United States, with a 

 description of one new species. By Joseph Swain. 



pp. 307-315. 



P. 284. Notice of recent additions to the marine invertebrata of the 

 northeastern coast of America, with descriptions of new 

 genera and species and critical remarks on others. (Part IV. 

 Additions to the deep-water mollusca, taken off Martha's 

 Vineyard, in 1880 and 1881.) By A. E. Verrill. 



pp. 315-343. 



P. 285. Descriptions of some new North American birds. By Robert 

 Ridgway. 



pp. 343-346. 



P. 286. Description of a new species of Uranidea ( Uranidea rfwthea) 

 from Spokane River, Washington territory. By Rosa Smith. 



pp. 347-348. 



P. 287. On the eastward distribution of the black-tailed deer (Cariacus 

 columbianus). By Charles Bendire. 



pp. 348-349. 



P. 288. Description of a new species of blenny (Isesthes gilberti) from 

 Santa Barbara, California. By David S. Jordan. 



pp. 349-351. 



