NATURAL SCIENCES OF PHILADELPHIA. 271 



is usually given for it, and regarded as synonymous with those above given. 

 Latham says further: " native place uncertain," (Gen. Syn. Supp., p. 188). 



This species has the bill and general structure more Sylvia-form than 

 others of this group. 



11. Dacnis brevipennis, (Giraud). 



Helinaia brevipennis, Gir., Ann. Lyceum, N. Y., v. p. 40 (1850). 



Ann. Lye, N. Y., v. pi. 3, fig. 1. 



Three specimens, one of which is labelled "Cayenne." The smallest species 

 of this group, easily distinguished by the green color of the upper parts of 

 the body, and light blue head. Though well described and figured by my 

 friend Mr. Giraud, of New York, as above cited, this little bird seems to be 

 unknown to naturalists. It belongs strictly to the same group of species as 

 the two species immediately preceding, (Z>. speciosa and D. bicolor). I regard 

 it as possible that this bird is the female or young of D. speciosa, 



E. Hemidacnis. 

 Genus HEMIDACNIS, Sclater, Cat. Am. Birds, p. 50 (1861). 



12. Dacnis albiventris, (Sclater). 



Pipridea albiventris, Sclat., Rev. et Mag. Zool., 1852, p. 8. 

 Hemidacnis albiventris, Sclat., Cat. Am. Birds, p. 50. 

 Jard. Contr. Orn.. 1852, pi. 100, fig. 2. 



Two specimens, adult and young, obtained for the Academy Museum by its 

 excellent members, Messrs. Geo. N. Lawrence and John G. Bell, of New York. 

 Both from Bogota. 



4. Genus CERTHIOLA, Sundeval, Vet. Acad. Handl., Stockholm, 1835, p. 99. 



1. Certhiola flaveola, (Linnajus). 



Certhia flaveola, Linn., Syst. Nat., i. p. 119 (1758). 



Nectarinia antillensis, Less., Traite d'Orn., i. p. 304 (1831)? 

 Sloan, Jamaica, pi. 259. Edwards' Birds, pi. 122. 

 Numerous specimens from Jamaica and St. Thomas, West Indies. 



2. Certhiola bahamensis, (Linnaeus). 



Certhia flaveola, /?. bahamensis, Linn., Syst. Nat., i. p. 187 (1766). 



Catesby, Carolina, pi. 59. 



Quite distinct, and easily recognized by Catesby's figure and the characters 

 pointed out by Prof. Reichenbach in Handb. Speciell. Orn., pt. v. p. 253, who 

 very clearly defines this species. 



3. Cebthiola lutpola, Cabanis. 



Certhiola luteola, Cab., Mus. Hein., i. p. 96 (1850). 



Reich., Vollst. Naturg. Vog., pi. 661, fig. 38*22. 



Numerous specimens from the Island of Trinidad, which aeem to be this 

 species. Others from Venezuela have the throat slightly darker, but are 

 otherwise very similar. 



4. Certhiola mexicana, Sclater. 



Certhiola mexicana, Sclat., Proc. Zool. Soc, London, 1856, p. 286. 

 Resembling the preceding (C. luteola), but apparently distinct. Specimens 

 in the Museum of the Smithsonian Institution and in the Academy Museum 

 are from Mexico. One specimen from Ecuador much resemhles these Mexican 

 specimens. 



5. Certhiola martimcana, Reichenbach. 



Certhiola martinicana, Keich., Hanb Spec. Orn., pt. r. p. 252 (1853). 

 Reich., Vollst. Naturg. Vog., fig. 3824. 

 Specimens from unknown localities, one of which only is labelled ' N An- 



1864.] 



