XirHORHYNCHLS. 121 



Key to the Species. 



A. Larger, wing more than 110 mm JT. sororiiis, p. 121. 



IJ. Smaller, wing less than 110 mm. 



a. Throat and middle ot" the feathers on the 

 fore-neck and breast buif}' white ; bill 



stouter -ST. polysticius, \). 123. 



h. Throat and middle of the feathers on the 

 fore-net'k and breast fulvous ; bill more 

 slender X. pa^'daJotus, ]). 122. 



427. Xiphorliynclius sororius. 

 Venezuelan Wood-hewer. 



XipJiorhyncJius sororivs Berlepscli & Hartert, Nov. Zool. ix. p. 03, 1902 



(Maipures, J\io Oironoco) ; Brabourne & Chubb, B. S. Amer. i. 



p. 250, no. 2540, 1912. 

 Dendrocohipfes (juttatus (nee Licht.) Cab. in Schomb. Reis. Guian. iii. 



p. 690, 1S4S. 

 Dendrornis guftatoides (nee Lafr.) Salvin, Ibis, 1SS5. p. 422 ( Bartica 



Grove); Sclater, Cat. B. Brit. Mus. xv. p. 128, 1S90 (Bartica 



Grove). 



Adult. Head, hind-neck, and sides of face dark brown with 

 smoky-white pear-shaped markings on the middle of the feathers 

 wliich are minute on the sides ot the face and forehead, larger 

 and widening out on tlie nape and hind-neck ; mantle and upper 

 wing-coverts rust-brown, seme of the feathers on the mantle 

 liave smoke-coloured shaft-streaks which are margined with 

 black ; lower back, rump, upper tail-coverts, primary and 

 ."econdary quills rufous chestnut with pale brown tips to the 

 outer primaries ; tail dark chestnut ; throat buff, with minute 

 dark margins to the feathers Aviiich increase in width on the 

 lower throat ; breast, abdomen, sides of l)ody, and under tail- 

 coverts undjer-hrown with wide shai't-linos of buff" many of. which 

 are narrowly margined with daik brown ; under wing-coverts 

 ochreous huff; quill-lining pale rufous, becoming pale brown on 

 the tips of tile outer primaries ; lower aspect of tail pale rufous. 



Total length 240 mm., exposed culmen 39, wing 115, tail 90, 

 tarsus 24. 



The specimen from which the description is taken was collocted 

 on the Abary Kiver in July 190G. 



Breeding-season. Unrecorded in British Guiana. 



Nest. In the holes of trees {Sdiondmryk). 



Eggs. Undescribed from British Guiana. 



