132 Ninth Supplement to the A. O. U. Check-List. ia 
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. 
Amphispisa belli nevadensis vs. A. nevadensis, Cf, GRINNELL, 
Auk, Jan. 1898, 593 FISHER, 67d. Apr. 1898, 190, 
Amphispisa belli clementee Ripaway, Auk, XV, July, 1898, 
230; 
Thryothorus cerroensis ANTHONY, Auk, XIV, Apr. 1897, 166. 
Thrvomanes bewitckit cryptus OBERHOLSER, Pr, U. S. Nat. Mus. 
XXI, No. 1153, Nov. 1898, 425. 
Thrvomanes bewicku eremophilus OBERHOLSER, /. ¢. 427+ 
Thryomanes bewicki’ chartenturus OBERHOLSER, /. ¢ 435. 
Thrvomanes bewitcku drymacus OBERHOLSER, /. ¢. 437+ 
Thryomanes bewickit calophonus OBE RHOLSER, ¢. 7. 4.40. 
Thryomanes bewickit nesophilus OBERHOLSER, /. ¢. 442. 
Referred to Mr. Ridgway. 
Fulmarus glactalis columba ANtHnony, Auk, XII, 1895, 372. 
Tuldmarus glacialis minor vs. F. glacialis, Cf. SALVIN, Cat. 
Bds. B. M. XXV, 1896, 426. 
Iulmarus glactalis rodgerst vs. FF. rodgersi. Cf. SAuvin, ibid. 
420. 
Puffinus stricklandi RipGw. vs. P. griseus (GMEL.). Cf SAL- 
VIN, 2hid. 386. 
Referred to Mr. Brewster. 
Empidonax insulicola OBERHOLSER, Auk, XIV, July, 1897, 300. 
Regulus calendula grinnelli WM, PALMER, Auk, XIV, Oct. 
1897, 399. 
‘The following cases were also referred for further investiga- 
tion, 
