52 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



gg. Smaller and darker, with more white on middle rectrices; adult 

 male with red of crown usually more restricted and separated 

 from that of nape by a more or less complete band of olive-gray; 

 adult male averaging: wing 98, tail 60.3, culmen 21; adult female 

 averaging: wing 96.7, tail 58.8, culmen 19.5. (Island of Oozumel, 



Yucatan.) Centurus lubriventris pygmaeus (p. 72). 



ff. Back, etc., more broadly. barred (white bars about 2 mm. wide); lateral 

 rectrices with broad whitish bars on distal portion; tail shorter 

 (44.5-56.5 mm.). (Centurus subelegans.) 

 g. Black bars on back, etc., averaging broader; adult male usually with 

 red of crown separated from that of nape by a more or less com- 

 plete occipital band of bufty grayish or light yellowish olive. 

 (British Guiana, Venezuela, Trinidad, and Tobago.) 



Centurus subelegans subelegans (extralimital).o 



gg. Black bars on back, etc., averaging narrower; adult male with red 



of crown usually broadly confluent with that of nape (except in 



C. s. neglectusf). 



h. Under parts paler; averaging smaller (adult female * averaging: 



Wing, 102; tail, 47; culmen, 19; tarsus, 16.8; outer anterior toe, 



14.5). (Bogota district, central Colombia.) 



Centurus subelegans neglectus (extralimital).c 



hh. Under parts darker; averaging larger (adult females averaging: 



wing more than 102, tail more than 48, culmen more than 20, 



tarsus more than 17.5, outer anterior toe more than 16). 



i. Black bars on back, etc., as well as those on middle rectrices 



narrower; prefrontal region distinctly yellow; general color of 



under parts more yellowish; red of abdomen more restricted; 



wing longer, bill shorter. 



ffl Centurus subelegans Bonaparte, Proc. Zool. Soc. Lond., 1837, 109 ("Mexico," 

 i. e., Venezuela; see Bonaparte, Consp. Av., i, 1850, 119, and Richmond, Proc. U. S. 

 Nat. Mus., xviii, 1896, 666). — Melanerpes subelegans Richmond, Proc. U. S. Nat. 

 Mus., xviii, Aug. 12, 1896, 666 (Margarita I., Venezuela; crit.). — Melanerpes tricolor 

 (ex Pieus tricolor Wagler, 1829, not of Gmelin, 1788) Hargitt, Cat. Birds Brit. Mus., 

 xviii, 1890, 174, part. — Melanerpes wagleri Salvia and Godman, Biol. Centr.-Am., 

 Aves, ii, 1895, 416, part (Venezuela). 



I am not able to satisfactorily distinguish specimens from Triiudad and Tobago 

 from Venezuelan examples. One of the latter (from M6rida) has the red of the head 

 broadly continuous from crown to nape, and is very little different in this and other 

 characters from Santa Marta specimens {Melanerpes wagleri sartctse-mmtx Bangs). 



Specimens with barred rump and upper tail-coverts {^Centurus terricolw Ber- 

 lepsch) have not been seen by me. 



6 I have seen only one adidt male of this form, its measurements being as follows: 

 Wing, 109; tail, 49.5; culmen, 22; tarsus, 17.5; outer anterior toe, 15.5, thus agree- 

 ing, except in length of wing, in small size with females from Bogota. This single 

 male, however, has an imperfect grayish occipital band, as in most specimens of C. s. 

 subelegans from Venezuela, etc. 



c Melanerpes subelegans neglectus Richmond, Proc. U. S. Nat. Mus., xvui, no. 1093, 

 Aug. 12, 1896, 668 (Bogota, Colombia; coll. U. S. Nat. Mus.). 



Of this form, whose status is somewhat doubtful, I have seen only one adult male 

 and three adult females. 



