( 331 ) 

 [192. Campylorhamphus trochilirostris procurvoides fLafr.). 



Xiphorhynchui^ prociirvokhs Lafresnaye, Rec. Mar/. Zool. (2) ii. p, 37(5 (1850. — Cayenne). 

 Xijihornis procurvoides Hellmayr, Niw. Zool. xiv. p. 367 (Borba). 

 X. trochilirostris (neo Licht.) Pelzeln, I.e. p. 44 (part. : Borba). 



Right bank : Borba (Natterer, Hoffmanns). 



Thanks to the courtesy of Dr. von Lorenz, I now have, in addition to the adult 

 female out of Mr. Hoffmann's first Madeira collection, three more specimens from 

 Borba (Natterer coll.) before me, and can state that the supposed differences noticed 

 by me I.e. have no real existence. Two of the skins show slight blackish edges to 

 the pale shaft-streaks on the foreneck and chest, bnt the third (Vienna Museum, 

 No. 15914, S ad., Borba, April 8, 1830) has no traces thereof, agreeing in this 

 respect with the series of C. t. procurvoides from Cayenne and British Guiana. The 

 olive tint of the lower plumage is not a constant character either, two of Natterer's 

 examples being even more strongly tinged with rufescent underneath than soms of 

 the Guianan ones. Moreover, in all principal p^ints, i.e. narrow buff shaft-lines on 

 the head, immaculate dark brown back, deep rufous wings and tail, etc., etc., the 

 Madeira birds are exactly similar to the latter. 



The geographical variation of C. trochiliro&tri.i not having been well understood 

 hitherto, I thiok, a few words about the conclusions arrived at by studying a large 

 amount of material may be welcome to ornithologists. The following races appear 

 to be easily recognizable : — 



(a) C. trochilirostris trochilirostris (Licht.). 



Dendrocolapfes trochilirostris Lichtenstein, Abhandl. Atcad. Berlin a. d. Jahreii 1818-19. p. 207. 

 pi. iii. (1820. — "in Brasiliae provincia Bahia" ; of. I.e. 1820-21. p. 203). 



Uab. Eastern Brazil : Bahia (Sellow, Robert, etc.). 



Characters. Back " wood-brown '" or " cinnamon-brown " (Ridgw. Nomencl. iii. 

 figs. 19, 20), with sharply defined buffer whitish shaft-stripes (never margined with 

 blackish) ; crown and nape darker " wood-brown," marked with large, rounded, 

 buff stripes, surrounded by a narrow blackish brown edge at the tip ; rump, upper 

 tail-coverts, wings, and tail clear cinnamon-rufous. Throat white, the feathers of 

 the lower portion narrowly fringed with brown ; remainder of lower parts pale 

 " wood-" or "cinnamon-brown," covered with broad, whitish or buft' shaft-stripes, 

 laterally never edged with blackish ; lower abdomen and under tail-coverts uniform 

 immacnlate pale brown. Bill clear red. 



Wing 93^10:.! ; tail 82—90 ; bill 58^64 mm. 



Material. Twenty specimens from Bahia, only one of them (J ad., Lamarao, 

 Bahia, A. Robert coll., No. 1549) se.xed. 



(b) C. trochilirostris venezuelensis (Chapm.). 



Xiphorhynchus veneziielensis Chapman, Bull. Amer. Mus. N.Y. ii. p. 156 (1889. ^Venezuela : types 

 Nos. 2246, 2247 Museum Boston Soc. Nat. Hist.). 



Hub. Venezuela : Caicara, Altagracia, on the Orinoco River (Cherrie), Puerto 

 Cabello (Starke, Mus. H. v. Berlepsch), Caracas (Goering), etc. North Brazil : Rio 

 Amajau, tributary of the Rio Negro, below Barcellos (Natterer).* Colombia : 

 Reniedio.'f, Antioquia (Salmon); Bogota collections, etc. Panama: Lion Hill 

 Station (McLeannan ; fide Chapman). 



* S. trochiliroBtris Pelzeln, Zur Orn. Bras. p. 44. — Pelzeln also registers Marabitanas and Barra do 

 Rio Kegro, but these specimens are no longer to be found in the Vienna Museum. 



