I32 Ninth Supplement to the A. O. U. Check-List. [^ 



In the preceding six cases the alleged differences prove too 

 slight to warrant recognition in nomenclature. 



IV. — REFERRED TO SUBCOMMITTEES FOR INVESTI- 

 GATION. 



Referred to Messrs. Ridgway and Brewster, 



Amphispiza belli nevadensis vs. A. nevadensis. Cf. Grinnell, 

 Auk, Jan. 1898, 59 ; Fisher, ibid. Apr. 1898, 190. 



Amphispiza belli elemented' Ridgway, Auk, XV, July, 1898, 

 230. 



Thryotlwrits cerroensis Anthony, Auk, XIV, Apr. 1897, 166. 



Thryomanes bewickii cryptus Oberholser, Pr. U. S. Nat. Mus. 

 XXI,. No. 1 153, Nov. 1898, 425. 



Thryomanes bewickii eremophilus Oberholser, /. c. 427. 



Thryomanes bewickii charienturus Oberholser,/. e. 435. 



Thryomanes bewickii drymoecus Oberholser, /. c. 437. 



Thryomanes bewickii calophonus Oberholser, c. I. 440. 



Thryomanes bewickii nesophilus Oberholser, /. c. 442.- 



Referred to Mr. Ridgway. 



Fulmarus glacialis columba Anthony, Auk, XII, 1895, 372. 



Fulmarus glacialis minor vs. F. glacialis. Cf. Salvin, Cat. 

 Bds. B. M. XXV, 1896, 426. 



Fulmarus glacialis rodgersi vs. F. rodgersi. Cf. Salvin, ibid. 

 426. 



Puffinus stricklandi Ridgw. vs. P. griseus (Gmel.). Cf. Sal- 

 vin, ibid. 3S6. 



Referred to Mr. Brewster. 



Empidonax insulicola Oberholser, Auk, XIV, July, 1897,300. 

 Regains calendula grinnelli Wm. Palmer, Auk, XIV, Oct. 

 !897> 399- 



The following cases, were also referred for further investiga- 

 tion. 



