70 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult Tmile.— Length (skins), 228-257 (245); wing, 129-133 (130.8); 

 tail, 78-84 (82.1); culmen, 33.5-35.5 (34.4); tarsus, 23.5-25 (24.1); 

 outer anterior toe, 19-21 (20.2).« 



Adult female.— Length (skins), 218-240 (231); wing, 124.5-131 

 (127.7); tail, 75.5-84.5 (80.3); culmen, 30-32 (31.2); tarsus, 22.5- 

 24.5 (23.2); outer anterior toe, 18.5-20.5 (19.6).^ 



Cozumel Island and Meco Island, Yucatan; Mugeres Island? 



Cmturus leei Ridgway, Proc. Biol. Soc. WaBh., iii, Feb. 26, 1885, 22 (p. 3 of 



reprint) (Cozumel Island, Yucatan; coll. U. S. Nat. Mus.). 

 Centurus dubius leei Ridgway, Proc. U. S. Nat. Mua., viii, no. 36, Oct. 17, 1885, 



561, 575 (descr.; crit.). 

 M[elanerpes] leei Ridgway, Man. N. Am. Birds, 1887, 293. 

 Centurus dubius (not Picus dubius Cabot) Salvin, Ibis, 1885, 186, 192 (Cozumel 



I.; crit.); 1889, 369, part (Cozumel and Meco islands; crit.). 

 Melanerpes dubius Hargitt, Cat. Birds Brit. Mus., xviii, 1890, 172, part (Cozumel 



I.). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1895, 422, part. 

 [Melanerpes] dubius Sharpe, Hand-list, ii, 1900, 211, part (Cozumel I.). 



CENTURUS DUBIUS CANESCENS (Salvin). 



RITATAN WOODPECKER. 



Similar to C. d. dubius, but upper parts more broadly barred with 

 white (the white bars about as wide as the black interspaces), outer 

 webs of primaries (except three outermost) spotted or barred with 

 white, and size slightly larger. 



Adult female.'—Length (skins), 234-239 (236.5); wing, 127-136 

 (130.3); tail, 76-79.5 (77.8); culmen, 30-31 (30.5); tarsus, 21-23 

 (22.2); outer anterior toe, 18.5-19 (18.8).'^ 



Kuatan Island, Honduras. 



Centurus dubius? (not Picus dubius Cabot) Ridgway, Proc. U. S. Nat. Mus., x, 

 Aug. 6, 1888, 579 (Ruatan I., Honduras). 



Centurus canescens Salvin, Ibis, July, 1889, 370 (Ruatan I., Honduras; coll. Sal- 

 vin and Godman. 



Melanerpes canescens Hargitt, Cat. Birds Brit. Mus., xviii, 1890, 174 (Ruatan). — 

 Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1895, 423. 



[Melanerpes] canescens Sharpe, Hand-list, ii, 1900, 211. 



CENTURUS RUBRIVENTRIS RUBRIVENTRIS Swainson. 



SWAINSON'S WOODPECKER. 



Adult male. — Postnasal region (frontlet), usually also loral region, 

 anterior portion of malar region, chin, and extreme upper portion of 

 throat, chrome yellow to deep cadmium yellow or orange; forehead 

 and anterior portion of superciliary region dull white; crown, occiput, 



« Nineteen specimens. c i have not seen the adult male of this form. 



b Twenty specimens. <^ Three specimens. 



