PICIFORMES, PASSERIFORMES. AvGS 55 
Campephilus principalis : its present range, with a map of its present 
and past distribution ; E. M. Hasbrouck, Auk, viii, pp. 174-186. 
Celeus lcerri , n. sp., River Pilcomayo, E. Hargitt, Ibis, 1891, pp. 605 
& 606. 
Subfamily Iyngin^e. 
lynx torquilla : tuberculated heel in young ; A. Gunther, Ibis, 1890, 
pp. 411 & 412, cum fig. 
Subfamily Picumninas. 
Picumnus pilcomayoensis, n. sp., River Pilcomayo, E. Hargitt, Ibis, 
1891, pp. 606 & 607. 
Suborder GALBULA5. 
Sclater, P. L. Catalogue of the Picarice in the Collection of the 
British Museum. [Yol. xix of The Catalogue of Birds.] Galbulidce , 
pp. 161-177. 
Brachygalba fulviventris, n. sp., Colombia, id. t. c. p. 172. 
Suborder BUCCONES. 
Sclater, P. L. Catalogue of the Picarice in the Collection of the British 
Museum. [Yol. xix of The Catalogue of Birds.] Bucconidce , pp. 
178-208. 
M. panamcnsis and its races : a, var. coslariccnsis ; 5, var. lypica ; c, var. 
mystacalis ; d, var. ccquatorialis ; id. t. c. pp. 196 & 197. 
Order PASSERIFORMES. 
Section A. OSCINES. 
Family Corvids. 
Stone, W. Catalogue of the Corvidce in the Collection of the Academy 
of Natural Sciences of Philadelphia. P. Ac. Philad. 1891, pp. 441- 
447. 
Dod, F. H. Wolley. Corvus frugilegus and C. corone. Notes on habits. 
21st Ann. Rep. Well. Soc. pp. 16-34. 
Corvus frugilegus : the acquisition of the naked face ; R. C. Oudemans, 
Zool. Gart. xxxii, pp. 123-125. 
Corvus annectens , n. sp. (fossil), S.W. Oregon, R. W. Shufelpt, Auk, 
viii, p. 368. 
Nucifraga caryocatactes, figured ; W. Borrer, B. Sussex, pi. iv : in 
Wigtownshire ; H. Maxwell, Scot. Nat. 1891, p. 191. 
Cyanocorax heilprini, Gentry, probably a hybrid between C. cyanomelas 
and C . cyanopogon ; W. Stone, P. Ac. Philad. 1891, p. 443. 
1891. [vol. xxviii.] c 8 
