584 BIRDS OF BRITISH GUIANA. 



Total longth 196 mm., exposed culmen 17, wing 93, tail 90, 

 tamis 24, middle toe and claw 22. 



The specimen from which the description is taken has no exact 

 locality. 



Breeding-season. Unknown. 



Nest. Unrecorded. 



Eggs. Undescrihed. 



Range conjined to British Guiana. The two ppooimenp that are 

 in the McConnell collection have no exact localities. 



Habits. Unrecorded. 



Genus HOLOaUISCALUS Cass. 



Roloquisc.alus Cassin, Proc. Acad. Xat. Sc. Philad. ISOG, p. 404. Type 

 H. crassirostris (Swains.). 



Fig. 213. — Holoquiscalus lugulris. 



In this genus the bill is compressed, pointed, and slightly 

 arched at the tip; its width at the base is less than its dej»th, the 

 latter being ecual to about oue-third the length of the exposoil 

 culmen. The wing is roundeJ, the second, third, fourth, and fifth 

 ])rimaries longest and subequal, and the first about equal in length 

 to the sixth. The tail is rounded at the tip, the middle feathers 

 about one-fourth longer than the outermost one on each side. 

 Coloration : male and female similar. 



714. Holoquiscalus lugubris. 

 Swainson's Gragkle. 



Quiscalus lugubris Swains. Anim. in Menag. p. 299, 1S37 (British 

 Guiana); Sclater, Cat. B. Brit. Mus. xi. p. 402, 1886 (George- 

 town) ; Quelch, Timehri (2) v. p. 87, 1891 rGeorgetown). 



Chulcophanesjamuicensis { 6 ) Cab. in Schuiub. Keis. Guiau. iii. p. G&3, 

 1848. 



