718 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Southeastern Mexico, in States of Vera Cruz (Catemaco; Jalapa), 

 Puebla (Zentla) ?, and Oaxaca (Chimalapa), and southward through 

 Guatemala (Coban; Choctum; Cajabon; Tres Aguas; Las Salinas; Alta 

 Vera Paz) and Honduras (San Pedro; San Pedro Sula; Tigre Island ?) 

 to northern Nicaragua (Jalapa). 



— ? ScLATER and Salvin, Ibis, 1859, 221 (Cajabon, Guatemala; 



(?) Scops - 



crit.).— Taylor, Ibis, 1860. 226 (Tigre I., Honduras). 

 [Scops] brasilianus (not Strix brasiliana Gmelin) Salvin and Godman, Norn. Av. 



Neotr., 1873, 117, part. 

 [Scops brasilianus.] Subsp. ^9. Scops guatemalse Sharpe, Cat, Birds Brit. Mua.t 



ii, 1875, 112, part (Guatemala; coll. Brit. Mus.). 

 Scops guatemalse Sharpe, Cat. Birds Brit. Mus., ii, 1875, pi. 9, larger figure (brown 



phase). — Salvin and Godman, Biol. Centr.-Am., Aves, iii, 1897, 20, part 



(Catemaco and Jalapa, Vera Cruz; Zentla, Puebla?; Chimalapa, Oaxaca; 



Coban, Choctun, Las Salinas, and Cajabon, Guatemala). 

 [Scops] guatemalse Sharpe, Hand-list, i, 1899, 288, part. 

 [Scops brasilianus] d. guatemalx Ridgway, Proc. U. S. Nat. Mus., i, Aug. 15, 1878, 



90, 99, part (monogr. ; Coban, Choctun, and Las Salinas, Vera Paz, Guatemala; 



Jalapa, Vera Cruz). 

 Megascops brasilianus guatemalx Stone, Proc. Ac. Nat. Sci. Phila., 1890, 128. — 



Hasbrouck, Auk, x, 1893, 251, 263, part (Guatemala). 

 Otus guatemalx Cole, Bull. Mus. Comp. Zool., 1, Nov., 1906, 124, in text. 

 Megascops marmoratus Nelson, Auk, xiv, no. 1, Jan., 1897, 49 (Catemaco, Vera 



Cruz; coll. U. S. Nat. Mus.). 



OTUS HASTATUS HASTATUS Ridgway. 



MAZATLAN SCREECH OWL. 



Most nearly resembling 0. choliha, but coloration much lighter and 

 grayer above, with darker markings more distinct and less linear, 

 those on pileum and hindneck in form of irregularly rhomboid or 



Footnote— Continued. 



Culmen, 

 Locality. Wing. Tail. from 



cere. 



FEMALES. 



Tliree adult females from Guatemala 168.5 87 15 



One adult female from Vera Cruz (Catemaco; type of Megascops marmoratus 



Nelson) 175 88.5 14 



One adult female from northern Nicaragua ( Jalapa) (O.p«a<emote?) 170 84.7 14 



Tliree adult females from Yucatan (0.7iasto<MS«AoTOpsonO 158.7 82 13.5 



One adult female from western Mexico (0.fta«tat«sftasto«Ms) 157 81 13 



Five adult females from Costa Rica (0.t)erm»c«Za<M«) 163.9 77.6 14.3 



Two adult females from Panama (0.cermtcM?at«s) 162 78 14.7 



Two adult females of O.cassJnJ 151 76 12.7 



Some of the specimens included in the above measurements were not "sexed" by 

 the collector, but their dimensions make the sex reasonably certain. 



It is not unlikely that specimens from Honduras and Nicaragua will eventually 

 have to be separated from true 0. guatemalx subspecifically. They are more grayish 

 brown above and, specimens from Nicaragua, at least, have more white on the under 

 parts. 



