378 Field Museum of Natural History — Zo6logy, Vol. XIII. 



Aulacorhynchus albivitta phaolczmus Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXVI, 191 7, p. 334 (San Antonio; Cerro Munchique; Florida; Cocal, 

 Colombia). 



Avlacorhamphus petax Bangs, Proc. Biol. Soc. Wash., XXI, 1908, p. 158 (San 

 Antonio, Colombia). 



Range: Subtropical zone of the western Andes, Colombia (except 

 at the northern end).' 



*Aulacorhynchus albivitta griseigularis'' Chapman. Plumbeous- 

 throated TOUCANET. 



Aulacorhynchus albivitta griseigularis Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXIV, 1915, p. 639 (Santa Elena, alt. 9000 ft., central Andes, Antioquia, 

 Colombia); Id., XXXVI, ^yi7, p. 335 (Paramillo; Sta. Elena; Salento; 

 Miraflores, Colombia). 



Range: Western slope of central Andes and northern end of west- 

 ern Andes, Colombia. 



2: Colombia (Antioquia). 



Aulacorhynchus lautus*' (Bangs). Santa Marta Toucanet. 



Aulacorhamphus lautus Bangs, Proc. Biol. Soc. Wash., XII, 1898, p. 173 (San 



Miguel, Santa Marta region, Colombia). 

 [Aulacorhynchus] lautus Chapman, Bull. Am. Mus. Nat. Hist., XXXIV, 1915, 



p. 640, in text, crit. 



Range: Santa Marta region, northern Colombia. 



*Aulacorhynchus haematopygius (Gould). Crimson-rumped Tou- 

 canet. 



Pteroglossus hcetnatopygius Gould, Proc. Zool. Soc. Lond., 1834, p. 147, (no lo- 

 cality given = Colombia?)'^; Id., Mon. Ramphastidas, ed. i, 1834, pi. 33 and 

 text. 



Aulacoramphus hzmatopygius Gould, Mon. Ramphastidas, ed. 2, 1854, pi. 45 

 and text; Sclater, Proc. Zool. Soc. Lond., 1859, p. 146 (Ecuador); Cassin, 

 Proc. Acad. Nat. Sci. Phila., 1867, p. 119; Sclater and Salvin, Proc. Zool. 

 Soc. Lond., 1879, p. 537 (Concordia, Antioquia); Berlepsch and Taczan- 

 owsKi, Proc. Zool. Soc. Lond., 1884, p. 308 (western Ecuador); Sclater, 



» Chapman, /. c. 



^Aulacorhynchus albivitta griseigularis Chapman: Similar to A. a. phcBolcemus 

 (Gould), but throat gray with a faint bluish instead of deep grayish blue. It differs 

 from A. a. albivitta by the strongly colored throat (not whitish as in albivitta) and 

 absence of reddish tinge at tip of mandible, etc. 



'^ Aulacorhynchus lautus (Bangs): Belongs in the group having the rectrices 

 tipped with chestnut; in the color of the throat it is close to A. a. griseigularis Chap- 

 man, but differs in having the maxilla more sulcate, the black at the base much more 

 extensive and the basal portion of the bill bordered by yellowish. From cceruleogu- 

 laris of Panama and Costa Rica it differs in the lighter and less bluish throat, absence 

 of a chestnut spot at base of the yellow maxillary stripe, etc. "Wing, 124; tail, 

 108.8; exposed culmen, 69.6" (Bangs). 



^ I suggest Concordia, Antioquia, Colombia. 



