70 Aves 
III. AYES. 
Petrochelidon lunifrons , very early record ; Coues, Alik xvi, p. 359. 
Psalidoprocne percivali , n. sp., Ruo River, S.E. Africa; Ogilvie Grant, 
Bull. B. 0. 0. viii, p. lv. 
P. blanfordi, n. sp., Bilo, Abyssinia ; Weld Blundell & Lord Lovat, 
Bull. B. 0. C. x, p. xx. 
Family Tyrannida;. 
Ocht/iodiceta pernix, n. sp., U. S. Colombia; Bangs, P. Biol. Soc. Washing¬ 
ton xii, pp. 95 & 96. 
Octhoeca citrinifrons , Sclater, probably = 0. frontalis (Lafr.;; Stone, Auk 
xvi, p. 78. 
Mecocerculus nigriceps , M. urichi , nn. spp., Venezuela; Chapman, Bull. 
Amer. Mus. xii, pp. 154-156. 
Lophotriccus squamicristatus , egg figured; Nehrkorn, Katalog Eiersamml. 
Taf. iii, fig. 36. 
Hapalocercus pauhts, n. sp., U. S. Colombia; Bangs, P. Biol. Soc. 
Washington xiii, p. 96. 
Myiopatis montensis , n. sp., U. S. Colombia; Bangs, t. c. xiii, pp. 97 & 98. 
Myiobius cinnamomeus , egg figured; Nehrkorn, Katalog Eiersamml. Taf. 
iii, fig. 37. 
Elainea cinereifrons ; Salvadori & Festa, Boll. Mus. Torino xv, No. 362, 
p. 8. 
Pseudomyiobius , n. g. Type P. annectens , n. sp., Ecuador; Salvadori & 
Festa, Boll. Mus. Torino xv, No. 362, p. 12. 
Pyrocephalus dubius , confined to Chatham Isl. Galapagos, and distinct 
from P. nanus ; Rothschild, Bull. B. 0. C. viii, p. lvii. 
Myioclianes nigrescens, Scl. and Salv., is a Blacicus \ Oberholser, Auk xvi, 
p. 337. 
Nuttallornis , subgenus, Ridgway is of generic rank, Type N. borealis 
(Swains.); Oberholser, t. c. p. 331. 
Rorizopus , nomen emend, pro Contopus , Cabanis nec Marseul; Oberholser, 
t. c. p. 331. 
//. sordidulus (Sclater) = II. richardsonii (Swainson); Oberholser, t. c. 
p. 333. 
Blacicus depressirostris or Blacicus andinus depressirostris , a name pro¬ 
posed for the Central American form; Oberholser, t. c. p. 337. 
Blacicus barbirostris , Swainson is a Myiarchus ; Oberholser, t. c. p. 330. 
Family Piprida:. 
Xenopipo subalctris , n. sp., Peru; Godman, Bull. B. 0. C. x, p. xxvii. 
Antilopliia , Reichenbach pro Metopia , Swainson nec Meigen; Oberholser, 
P. Ac. Philad. 1899, p. 209. 
Chiromachceris manacus, egg figured; Nehrkorn, Katalog Eiersamml. 
Taf. iv, fig. 38. 
Manacus manacus abditivus, n. subsp., Colombia; Bangs, P. New England 
Zool. Club i, pp. 35 & 36: M. manacus purus , n. subsp., Lower 
Amazonia; id. t. c. p. 36. 
Family Cotingidal 
>S 'cotothorus, nomen emend, pro Heteropelma , Bonaparte nec Wesmael; 
Oberholser, P. Ac. Philad. 1899, p. 208. 
Pachyrhamphus :vanthogenys , n. sp., Eastern Ecuador; Salvadori & 
Festa, Boll. Mus. Torino xiii, No. 330 (1898). 
P. major uropygialis, n. subsp., N.W. Mexico; Nelson, Auk xvi, p. 28. 
