MELANEEPES. 423 



10. Melanerpes canescens. 



Centurus dubius, Eidgw. Pr. U. S. Nat. Mus. x. p. 579', 



Centurus canescens, Salv. Ibis, 1889, p. 370 '. 



Melanerpes canescens, Hargitt, Cat. Birds Brit. Mus. xviii. p. 174'. 



C. dubio a.mms, sed fasciis albis corporis superioris et alarum paulo latioribus, remigibus externis ad basin 

 distincte albo fasciatis ; genis et corpore subtus plerumque albicantioribus, fascia frontali albida multo 

 latiore, narium plumis vix coccineo tinctis. Long, tova circa 97, ate 5-1, caud* 3-15, rostri a rictu 1-6, 

 tarsi 0-8, dig. med. absque ungue 0-78, dig. ext. 0-78. 



2 mari similis, pileo summo cano. (Descr. maris et feminas exempl. typ. ex Ins. Euatan. Mus. nostr.) 



Ifab. HoNDUE.iS, Ruatan I. (Townsend\ Gaumer^). 



Dr. Gaumer obtained many specimens of this Woodpecker when visiting the island 

 of Ruatan in the Bay of Honduras. It is no doubt very closely allied to M. dubius, 

 being an island-form of that bird distinguished by the very pale colour of the sides of 

 the head and under surface. There is very little red on the feathers covering the 

 nostrils, so that the transverse band across the forehead is wide ; the primaries, too, 

 show externally much more of the white spots near the base. 



On the mainland of Honduras, opposite the island of Ruatan, the small dark form of 

 M. santacruzi called by Mr. Ridgway M. s. pauper occurs, no doubt replacing M. dubius ; 

 but where these two forms meet in British Honduras has not yet been traced. 



i3"'. Uropygium et tectrices supracaudales nigro regulariter fasciati. 



11. Melanerpes uropygialis. 



Centurus uropygialis, Baird, Pr. Ac. Phil. 1854, p. 120 'j Cab. J. f. Orn. 1862, p. 330"; Baird, 

 Brew., & Eidgw. N. Am. Birds, ii. p. 558'; Lawr. Mem. Best. Soc. N. H. ii. p. 294'; 

 Eidgw. Pr. U. S. Nat. Mus. iv. p. 112'; Balding, Pr. U. S. Nat. Mus. vi. p. 344'. 



Melanerpes uropygialis, Hargitt, Cat. Birds Brit. Mus. xviii. pp. 182, 569 '. 



Supra niger, dorse toto, uropj'gio et alis albo regulariter transfasciatis ; capite toto, cervice et corpore subtus 

 pallide brunneo-fuscescentibus, f'ronte et plumis narium albicantioribus, pileo medio coccineo, hypo- 

 cliondriis imis et tectricibus subcaudalibus nigro distincte transfasciatis, abdomine medio vix flavo tincto ; 

 remigibus externis ad basin distincte albo fasciatis ; cauda nigra, rectricibus subexteruis albo fasciatis, 

 duabus mediis quoque fasciatis in pogonio interno, in pogonio externo stria elongata juxta rhachidem 

 notatis ; rostro et pedibus plumbeis. Long, tota circa 8'5, alse 5*0, caudae 2-8, rostri a rictu 1*4, tarsi 0-9, 

 dig. med. absque nngue 0-78, dig. ext. 0'75. 



5 mari similis, pileo medio baud coccineo. (Descr. maris et feminae ex Nuri, Sonora. Mus. nostr.) 



Hab. N. America, New Mexico i, Southern and Lower California, S. Arizona^ ^ — Mexico, 

 Moctezuma, Hermosillo in Sonora [Ferrari-Perez), Guaymas {Belding ^), Ysleta, Rio 

 Mayo, Nuri, Cedros ( W. Lloyd), Mazatlan ( Grayson ^, Forrer), Presidio de Mazatlan 

 {Forrer), San Bias {W. B. Richardson), Hacienda de San Ramon, Rancho de San 

 Pablo in the Sierra de Alica, Hacienda de Ambas Aguas, Ixtlan, all in the Terr, 

 de Tepic {Br. A. C. Buller, in Mus. Rothschild), Topic, Guadalajara {Grayson *), 

 Santana near Guadalajara {W. Lloyd), Barranca de Portillo near Guadalajara {Dr. 

 A. C. Buller, in Mus. Rothschild), Siena de Bolanos, Calvillo ( W. B. Richardson). 



