1153 Mr. c. e. hellmayr on the 



wliite, etc., etc. The pattern of the upper parts reminds one 

 rather of Automohis holostictus Scl. & Sal\^, yet it need not be 

 emphasized that this species is generically distinct. 



Of X. mentaUs, I have examined two adult males and a,n 

 immature female from Machaj, E. Ecuador, and two Bogota 

 skins, one in the British Museum, the other in Count Berlepsch s 

 collection. 



109. Xenops genibarbis littoralis Scl. 



[Xenops geniharhis Illiger, Prodr. Syst. Mamm. et Av. p. 213 

 (1811. — Carneta, Lower Amazons).] 



Xenops littoralis Sclater, P. Z. S. 1861, p. 379 (1861.— Esme^ 

 raldas, N.W. Ecuador). 



Xenops ruficauda (nee Vieillot) Cassin, Proc. Ac. N, Sci. Philad. 

 1860, p. 193 (Turbo, N. Colombia). 



Xenops geniharhis (nee Illiger) Sclater k Salvin, P. Z. S. 1879, 

 p. 523 (Remedies). 



No. 2039. (5 imm. Noanama : 31.viii.08. — Wing 61 ; tail 46 ; 

 bill 12| mm. 



No. 2479. $ ad. Noanama : 15.i.09.— Wing 61; tail 46| ; 

 bill 13 mm. 



No. 2646. 6 ad. Tado, R. San Juan: 17.V.09.— Wing 62| ; 

 tail 48 ; bill 13 mm. 



" Iris dark brown, feet blue-grey, bill black." 



These birds agree with topotypical examples from the Ecuadoiian 

 province of Esmeraldas. X. a. inexicamcs Scl. *, which ranges 

 from E. Mexico to Panama, is more rufescent, less olive, under- 

 neath, and has the back of a brighter, clearer cinnamomeous- 

 brown. 



X g. littoralis inhabits the lowlands and foothills of Western 

 Ecuador and Western Colombia. 



110. Glyphorhynchus cuxeatus castelnaudii Des Murs. 



[Bendrocolaptes cuneatus Lichtenstein, Abhandl. Akad. Berlin 

 a.d. Jahren 1818-19, p. 204, pi. ii. fig. 2 (1820— " in Brasilite 

 provincia Bahia " ; cfr. idem. I.e. a.d. Jahren 1820-21, p. 264.] 



Glyphorhynchus castelnaudii Des Murs, in Castelnau's Voyage, 

 Oiseaux, p. 47, pi. xv. fig. 2 (1856. — Santa Maria, Eastern Peru). 



Qlyphorhynchus cuneatus (errore) Sclater & Salvin, P. Z. S. 1879, 

 p. 523 (Remedies). 



Nos. 2019, 2177. c? imm-, ? ad. Sipi : 10.x.; Noanama : 

 26.viii.08.— Wing 69, 67 ; tail 70, 62 ; bill 12 mm. 



'' Iris dark brown, feet dark grey, maxilla black, mandible 



■ Slightly smaller than Upper Amazonian skins, but similar in 

 coloration. 



* Xeimps mexicanus Sclater, P. Z. S. 1856, p. 289 (Jan. 1857. — Cordova, 

 E. Mexico). 



