6 LIST OF CONTRIBUTORS. 



Baird, Spencer F. Continued. 



On Rhytisma aceris-eriocarpa? Schw. P '62, 507 



On a dust shower over portions of Vermont. P '70. Biol. 9 



Revision of the North American tailed Batrachia, with 



descriptions of new genera and species. J I. 281 



See Baird, Wm. M., and Spencer F. 



See March, W. T., and Spencer F. Baird 



Baird, Spencer F. and Charles Girard. Characteristics of some 

 new reptiles in the museum of the Smithsonian Institution. P 

 '52, 68, 125, 173 



List of reptiles collected in California by Dr. John L. Ijeconte, 



with descriptions of new species. P '53, 300 



Descriptions of some new fishes from the . River Zuni. P 



'53, 368 



— Descriptions of new T species of fishes collected by Mr. John 

 H. Clark on the U. S. and Mexican Boundary Survey under Lt.- 

 Col. Jas. D. Graham. P '53, 387. 



Descriptions of new species of fishes collected by Captains 



R. B. Maury and Geo. B. McClellan in Arkansas. P '53, 390 

 — ■ Descriptions of new species of fishes collected in Texas, New 

 Mexico and Sonora by Mr. John H. Clark on the U. S. and 

 Mexican Boundary Survey, and in Texas by Capt, Stewart Van 

 Vliet, U. S. A. Second Part. P '54, 24 

 — Notice of a new genus of Cyprinidse. P '54, 158 



Baird, Wm. M. and Spencer F. Descriptions of two species, sup- 

 posed to be new, of the genus Tyrannula Swains., found in Cum- 

 berland County, Pennsylvania. P '43, 283 



Baker, Frank C. Notes on the food of birds. P '89, 266 



Remarks upon the round-tailed musk rat, Neoflber alleni 



True. P '89, 272 



Remarks on Urosalpinx perrugatus Com*. P '90, 46 



— — On the modifications of the apex in Murex. P '90, 66 



Notes on a collection of shells from southern Mexico. P 



'91, 45 

 — Remarks on the Muricidse with descriptions of new specie* 



of shells. P '91, 56 

 — Further notes on the embryonic whorls of the Muricidae. 



P '94, 223 

 Baldwin, D. D. Descriptions of new species of Achatinellidse 



from the Hawaiian Islands. P '95, 214 

 Bancroft, Edward. Co-ossification of axis vertebra with third 



cervical. P '90, 419 



