HYPOTHETICAL LIST. 33 1 



The type-specimen, taken at Waltham, Mass., remains unique. It 

 cannot be identified with any known species, but may be a hybrid 

 between Acanthis linaria and Spinus pinus. {Cf. Brewst. Bull. Nutt. 

 Orn. Club, VI. 1881, p. 225.) 



18. Spiza townsendii (Aud.). 



Townsend's Bunting. 



Emberiza townsendii Aud. Orn. Biog. II. 1834, 183. 

 Spiza toivnsendii Ridgw. Pr. U. S. Nat. Mus. III., Aug. 24, 1880, 

 182. 



[B 379, C 192, R 255, C 288.] 

 The original specimen, taken May 11, 1833, in Chester County, 

 Pa., by Mr. J. K. Townsend, remains unique. Its peculiarities can- 

 not be accounted for by hybridism, nor probably by individual varia- 

 tion. 



Family VIREONID2E!. 



Genus HYLOPHILUS Temminck. 



Hylophilus Temm. PI. Col. III. Livr. 29, 1823, text, and pi. 173, 

 fig. I. Type, H. thoracicus Temm. 



19. Hylophilus decurtatus (Bonap.). 



Short-winged Hylophilus. 



Sylvicola decurtata Bonap. P. Z. S. 1837, 118. 

 Hylophilus decurtatus Baird, Rev. Am. B. I. 1866, 380. 

 [B— C-, R— , C-.] 

 Geog. Dist. — Mexico and Central America, to Isthmus of Panama. 

 Southern Texas ? {Helinai brevipennis Giraud, Ann. Lye. N. Y. 

 1850, 40. "Mexico and Texas.") 



Family MNIOTILTIDiE. 



20. Helminthophila lawrencei (Herrick). 



Lawrence's Warbler. 



Helminthophaga lawrencei Herrick, Pr. Ac. Nat. Sci. Phila. 



1874, 220, pi. 15. 

 Helminthophila lawrencei Ridgw. Bull. Nutt. Orn. Club. VII. 



Jan. 1882, ^i. 



