XIPHORHYNCHUS. 



123 



quills below rufous becoming brown on the outer and apical 

 portions ; lower aspect of the tail uniform rufous. 



Total length 220 mm., exposed culmen 33, wing 108, tail 92, 

 tarsus 22. 



The bird described was collected at Bartica in 1912. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Supenaam River, Bartica, Kamakabra 

 River, Makauria River, Anarica River, Mazaruni River, Arwye 

 Creek, Tiger • Creek (McConnell collection); Mount Roraima, 

 Merume Mountains, Kamakusa, Bartica {Whitely). 



Extralimital Range. Surinam (Fenard), Cayenne (Vieillot), 

 North Brazil. 



Habits. Unrecorded in British Guiana. 



429. Xipliorliynchus polystictus. 



Spotted Wood-hewer. 



Dendrornis polystiota Salvin & Godman, Ibis, 1883, p. 210 (Bartica 

 Grove) ; Salvin, Ibis, 1885, p. 422 ; Sclater, Cat. B. Brit. Mus. xv. 

 p. 135, pi. X. 1890 (Bartica Grove). 



Xiphorhynchus polystictus Brabourne & Chubb, B. S. Amer. i. p. 251, 

 no. 2548, 1912. 



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

 brown, with smoky-white pear-shaped marks on the middle of the 

 feathers, more minutely on the sides of the face and fore part of 

 the head and more coarsely on the hind-neck and sides of neck ; 

 mantle and upper wing-coverts bronze-brown with pale fulvous 

 shaft-streaks, which have narrow black margins, to some of the 

 feathers on the mantle ; primary and secondary quills rufous- 

 chestnut with dark shafts and dark brown tips to the outer 

 primaries ; lower back, rump, and upper tail-coverts rufous- 

 chestnut ; tail similar but somewhat darker on the middle 

 feathers ; chin and throat yellowish white ; remainder of the 

 under surface umber-brown with smoky-white or huffy-white 

 centres, with narrow blackish margins to the feathers, the pale 

 centres broader on the breast, narrower on the abdomen, and 

 almost obsolete on the vent and under tail-coverts, the narrow 

 black line that fringes the pale portion of the feathers on the 

 breast is represented by small black spots on the lower abdomen ; 



