HYPOTHETICAL LIST. 331 
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 (Avp.). 
Townsend’s Bunting. 
Emberiza townsendit Auv. Orn. Biog. II. 1834, 183. 
Spiza townsendii Ripcw. Pr. U.S. Nat. Mus. III. Aug. 24, 1880, 
182. 
[Big7o, C192, Rags, 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 VIREONIDZ. 
Genus HYLOPHILUS Temmincx. 
HHylophilus Tem. Pl. Col. III. Livr. 29, 1823, text, and pl. 173, 
fig. 1. Type, 4. thoracicus TEMM. 
19. Hylophilus decurtatus (Bonap.). 
Short-winged Hylophilus. 
Sylvicola decurtata BonaP. P. Z. S. 1837, 118. 
Lylophilus decurtatus BAIRD, Rev. Am. B. I. 1866, 380. 
[B—, C—, R—, C—.] 
Geroc. Dist.— Mexico and Central America, to Isthmus of Panama. 
Southern Texas? (Helinai brevipennis Giraup, Ann. Lyc. N. Y. 
1850, 40. ‘Mexico and Texas.’’) 
Famity MNIOTILTID 4. 
20. Helminthophila lawrencei (HERRICK). 
Lawrence’s Warbler. 
Helminthophaga lawrencei Herrick, Pr. Ac. Nat. Sci. Phila. 
1874, 220, pl. 15. 
Helminthophila lawrencei Ripcw. Bull. Nutt. Orn. Club. VII. 
Jan. 1882, 53. 
