BIRDS OF WESTERN COLOMBIA. 1155 



Baeza *) and North Peru (Cliachapoyas) are absolutely identicq,! 

 with those from Bogota and Venezuela f. 



On a future occasion I hope to give some information respecting 

 sevei'al other species of the geniis Dendrornis which, through 

 lack of proper material, are very imperfectly known. 



113. Dendrocincla meuuloides lafrbsxayei Ridgw. 



\^Dendroco2)s meruloides Lafresnaye, Rev. Mag. Zool. (2) iii. 

 p. 467 (1851. — " Cote fei-me," sc. Camanti, Venezuela).] 



Dendrocincla lafresnayei Ridgwny, Proc. U. S. Mus. x. 1887, 

 p. 492 (1888. — "Upper Amazons?'"' — errore ; we substitute 

 Colombia as type locality). 



D. olivacea lafresnayei Oberholser, Proc. Acad. N. Sci. Philad. 

 1904, p. 457 (crit.). 



No. 2460. $ (?) ad. Noanama : ll.i.09.— Wing 102; tail 

 88 ; bill 26 mm. 



No. 2113. $ imm. Sipi : 23.ix.08.— Wing 95; tail 81; bill 

 25 mm. 



" Iris dark brown, feet and bill black." 



These specimens agree well with others from Western Ecuador, 

 and Riolima., Cauca Valley. Bogota skins are slightly more 

 rufescent both above and below, thus pointing towards D. I. 

 pho'.ochroa Berl. & Hart. 



D. m. lafresnayeit, D. m. plueocliroa, and D. m. meruloides are 

 clearly races of one and the same species, representing each other 

 geographically. The first-named form may always readily be 

 distinguished from the two others in having the outer webs of the 

 quills conspicuously washed with olivaceous, and the dusky 

 portions of the bill much darker, black instead of horn- coloured. 

 On the other hand, D. m. meruloides differs from D. m ]yhceochroa 

 in its much brightei', more cinnamon or ochraceous-brown 

 coloration. 



Range and principal synonyms of these forms are as follows : — ■ 



(«) D, meruloides meruloides Lafr. 



Dendrocops meruloides Lafresnaye, Rev. Mag. Zool. (2) iii. 

 p. 467 [1851. — " Cote ferme," sc. Cumana ; cfr. Menegaux 

 & Hellmayr, Mem. Soc. Hist. Nat. Autun, xix. 1906, p. 121 

 (crit.)]. 



Dendrocincla meruloides Cabanis & Heine, Mus. Hein. ii. 1859, 

 p. 34 (Caraccas) ; Sclater & Salvin, P. Z. S. 1868, p. 167 (Pilar, 

 Venezuela); Chapman, Bull. Amer. Mus. N. Y. vi. 1894, p. 48 

 (Trinidad); Berlepsch & Hartert, Nov. Zool. ix. 1902, p. 67 



* D. erytliropygia (!) Goodfellow, Ibis, 1902, p. 63 (Baeza, E. Ecuador). 



f My material of D. t. triangularis was composed as follows : — 9 Bogotsl (Trinjr, 

 Munich, H.& B.), 1 Santa Elena, 1 Riolima, Cauca (Brit. Mus., Tring), 10 Merida 

 (Tring & Munich), 3 Cumbre de Valencia (Munich), 4 East Ecuador (2 Machay, 

 H. & B. ; 2 Baeza, Tring), 2 N. Peru, Chachapoyas (Tring) ; 30 examples in all. 



J =D. oUvacea auct. ex parte : America merid. 



