4l6 Thirttenth Sufpiemettt to the A. O. U. Check-List. \^^^. 



622f7. Lanius ludovicianus mearnsi Ridgway. 



San Clemente Shrike. 



Lanius ludovicianus mearnsi Ridgway, Proc. Biol. Soc. Wash., 

 XVI, 1903, 108. 



Geog. Dist. — San Clemente Island, California. 



622e. Lanius ludovicianus migrans W. Palmer. 



Migrant Shrike. 



Lanius ludovicianus migrans W. Palmer, Auk, XV, July, 1898, 

 248. 



Geog. Dist. — Eastern Canada and eastern United States, west 

 to Minnesota ; south to the Carolinas, Tennessee, and lower Miss- 

 issippi valley. Breeds chiefly in the northern parts of its range, 

 migrating south in winter. 



649. Compsothlypis nigrilora (Coues). This becomes a 

 subspecies of C. pitiayumi (Vieillot). {Cf. Ridgway, Bull. 

 U. S. Nat. Mus., No. 50, pt. II, 1902, 490), viz. : 



649. Compsothlypis pitiayumi nigrilora (Coues). 



658. Dendroica rara (Wilson). This becomes 



658. Dendroica cerulea (Wilson). 



Sylvia cerulea Wilson, Amer, Orn., II, 1810, 141, pi. xvii, 

 fig- 5- 



The name rara was orginally adopted in the Check-List on the 

 assumption that Sylvia acrulea Latham was a primary reference ; 

 it, however, proves to be merely Alotacilla atrulea Linnaius, placed 

 in the genus Sylvia. As the spirit of the ' Code ' (Canon XXXIII) 

 is to ignore cases of this character {cf. Allen, Auk, 1903, 216), 

 and previous rulings of the Committee have been on these lines, 

 it follows that the name cerulea must be restored. 



