BIRDS OF NORTH AND MIDDLE AMERICA. 465 



Momotus mexicanus Swainson, Philos. Mag., n. s., i, 1827, 442 (Temiscaltepec, 

 Mexico). — Lesson, Descr. Mam. et Ois., 1847, 266. — Gray, List Fissirostr, 

 Birds Brit. Mus., 1848, 40.— Sclater, Proc. Zool. Soc. Lond., 1857, 253 

 (monogr.); 1860, 252 (Orizaba, Vera Cruz); Cat. Am. Birds, 1862, 262, part.— 

 ScHLEGEL, Mus. Pays-Bas, Momoti, 1863, 6 (Mexico). — Sumichrast, Mem. 

 Bost. Soc. N. H., i, 1869, 560 (Vera Cruz). — Lawrence, Mem. Bost. Soc. 

 N. H., ii, 1874, 289 (Matatlan, Sinaloa; Plains of Colima; habits; descr. 

 nest and eggs). — Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 160 (Chietla 

 Puebla). — Sharpe, Cat. Birds Brit. Mus., xvii, 1892, 328, part (Mazatlan; 

 Bolanus, Beltran, and Tonila, Jalisco; Santiago and San Bias, Tepic; Plains 

 of Colima; near City of Mexico; Chietla, Puebla). — Jouy, Proc. U. S. Nat. 

 Mus., xvi, 1893, 785 (San Marcos, Jalisco; habits, voice, etc.). — Salvin and 

 GoDMAN, Biol. Centr.-Am., Aves, ii, 1895, 460, part (Presidio de Mazatlan, 

 etc., Sinaloa; Cuernavaca, Morelos; etc.). — Bailey (H. H.), Auk, xxiii, 

 1906, 388 (San Bias, Tepic). 



M[oinotus] mexicanus Gray, Gen. Birds, ii, 1847, 68. — Ridgway, Man. N. Am. 

 Birds, 1887, 278, part. 



[Momotus] mexicanus Bonaparte, Ateneo Italiano, ii, 1854, 317 (Consp. Volucr. 

 Anisod., 1854, 7).— Gray, Hand -list, i, 1869, 80, no. 938, part.- Sclater and 

 Salvin, Nom. Av. Neotr., 1873, 102, part.— Sharpe, Hand-list, ii, 1900, 77. 



Prionites mexicanus Wagler, Isis, 1831, 528. — Swainson, Classif. Birds, ii, 1837, 

 338.— Swainson, Zool. Hlustr., ser. 2, ii, Aug., 1831, pi. 81. 



[Prionites] mexicanus Bonaparte, Consp. Av., i, 1850, 165. 



C[rybelus] mexicanus Cabanis and Heine, Mus. Hein., ii, 1859, 113. 



[Cnjbelus] mexicanus Heine and Reichenow, Nom. Mus. Hein. Orn., 1890, 155. 



Prionites martii (not of Spix) Swainson, Zool. Hlustr., ser. 2, ii, 1831-32, pi. 81. 



Momotus martii Sardine and Selby, Hlustr. Orn., i, 1827, pi. 23. 



Momotus mexicanus saturatus (not of Nelson) Miller (W. De W.), Bull. Am. Mus, 

 N. H., xxi, 1905, 351 (Escuinapa, etc., Sinaloa; habits). 



MOMOTUS MEXICANUS SATURATUS Nelson. 



COAST MOTMOT. 



Similar to M. m. mexicanus but decidedly larger, and averaging 

 deeper in color. '^ 



Adult male.— Length (skins), 313-355 (340); wing, 115-131 (122.2); 

 tail, 166-191 (170.8); exposed culmen, 37-46.5 (42); tarsus, 25.5-28.5 

 (28.9); middle toe, 17.5-19 (19.2).^ 



Adult female.— Length (skins), 318-350 (331); wing, 114.5-127 

 (123.2); tail, 147.5-190 (176); exposed culmen, 37.5-43.5 (41.3); 

 tarsus, 25-27 (25.8); middle toe, 17.5-19 (18.9).*^ 



Pacific slope of southern Mexico, in States of Guerrero (EI Limon; 

 El Rincon; Acapulco; Iguala; Amula; Chilpancingo; Egido Nuevo), 



« The color difference mentioned in the original description are by no means con- 

 stant, occasional specimens being not at all different in color from M. m. mexicanus, 

 while of the latter some specimens are as deeply colored as any of M. vi. saturatus. 

 The average difference is quite perceptible, however, and the average difference in 

 size very marked. 



b Fourteen specimens. 



c Thirteen specimens. 



3622°— Bull. 50, pt 6— 14 30 



