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40. Sittasoinus amazonus Lafr. 



Ofr. supra, p. 31. 



No. 680. S ad., 22. v. 06. " Iris brown, feet black, bill bluish black."— 

 Wing 83; tail 77; bill Is mm. 



Agrees with the Obidos specimen except ill having the lower parts ratlin- 

 paler and more greenish. It is a well-known fact that in this genus the S3 are 

 always considerably larger than the ? ? . 



50. Glyphorhynchus cuneatus castelnaudii Des Murs. 



Glyphorhynchus castelnaudii Des Murs in Castehtaii's Voyage, Oiseaux, p. 47. tab. xv. fig. 2 

 (185G.* — Santa Maria, Pern). 



No. SOS. ? jr., 11. vi. 06. " Iris brown, bill and feet black." 



51. Dendrornis guttata guttatoides (Lafr.) 



Nasica guttatoides Lafresnaye, Bee. et Mag. Zool. 1850. p. 387 (Lorette, N.E. Peru.— cfr. Ment'g. & 



Hellm. Mem. Soc. Hist. not. Autun xix. (1906) p. 99). 

 Dendrornis rostripallens Sclater, Cat. Amur. Birds. 1802. p. 1G4 (Ega). 



No. 728. S ad., 3. v. 06. " Iris brown, feet bluish grey, bill grey." — 

 Wing 116 ; tail 98 ; bill 38 mm. 



No. 840. (c?) ad. (erroneously marked "?"), 16. vii. 06. "Iris brown, feet 

 bluish grey, bill yellowish grey." — Wing 110 ; tail 103 ; bill 40 mm. 



Like our series from Bogota, East Ecuador and Peru, these specimens have 

 the lower parts strongly suffused with ochraceons, and the feathers of the foreneck 

 only margined with blackish. Both are adult birds with the bill long and slender, 

 the lower mandible being (in the dry skins) grey, the upper one whitish horn- 

 colour except at the base. 



Messrs. Berlepsch & Hartert (No®. Zool. ix. p. 63) say : " The specimens from 

 Munduapo and Nericagna come very close to true D. rostripallens in having the 

 maxilla partly pale-coloured and the under-surface of the body more rnfescent." 

 I rind, however, that those from Munduapo agree in all essential characters with 

 typical D. g. sororia of Maipures, etc., except in having the lower parts a shade 

 more ochreons. On the other hand, an example from Nericagna appears to me 

 to be nndistinguishable from D. g. guttatoides, having the under-surface of the 

 same rnfescent tinge, the blackish margins much less pronounced than in sororia, 

 and confined to the feathers of the foreneck. Furthermore, the upper mandible 

 is not mainly blackish as in sororia, but pale greyish horn-colour, as in several 

 specimens of guttatoides. The range of these two forms would, thus, be as 

 follows : 



a. D. guttata sororia Berl. & Hart. 



Hab. Cayenne (Chcrrie coll. — Mus. Tring) ; Surinam : Paramaribo (Chnnkoo 

 coll. — Mus. Tring) ; Brit. Guiana : Quonja, Bartica Grove. North Brazil, Lower 

 Amazons : Obidos. Venezuela : on the Orinoco River, up to Maipures and 

 Munduapo ; and on its southern tributary, the Caura Itiver. 



Thirty-one examples examined. 



b. 1). guttata guttatoides (Lafr.). 



< 'entral Peru : Monterico, La Merced. East Peru : Sarayacu, Ucayali. 

 North Peru : Iquitos, Nauta, Samiria, Pebas, Loreto, Cavallo-Coche', Yurimaguas. 



* Cfr. Woodward & Slierborn, Ann. Mar/. Nat. Hist. (7) viii. (1901) p. 104. 



