86 



PROCEEDINGS OF THE ACADEMY OP 



Wing. 



Tail. 



Cul- 



Tarsus. 



Middle 

 Toe. 



Cat. No 



Museum. 



Locality. 



Young Males. 



Yotjng Females. 



Material examined. National Museum, Washington, 6S speci- 

 mens; Academy of Natural Sciences, Philadelphia, 18; American 

 Museum, New York, 3; Boston Society of Natural History, 4; 

 Museum Comparative Zoology, Cambridge, Mass., 3; Mus. Gr. N. 

 Lawrence, Esq., 9; W. S. Brewer, Esq., 1; R. Ridgway, 7. Total 

 number of specimens examined, 113. 



Nisus Gundlachi. 



Astur cooperi, Lernb. Av. de la Isla de Cuba, 1850, 17. Caban. Journ. f. 

 Orn., Nov. 1854. Nisus pileatus, Lemb. Av. Cuba, Supplement. 

 Astur pileatus, Gundl. Journ. f. Orn., Nov. 1854. Accipiter gund- 

 lachi, Lawr. Ann. N. Y. Lye. VII. May, 1860, 252. Gundl. Rep., 

 1865, 224. Scl. and Salv., Ex. Orn. I. 170. Gray, Hand List, I. 33, 

 No. 319. Sharpe, Cat. Ac. B. M., 1874, 137 (foot-note). Nisus 

 cooperi var. gundlachi, Ridg., B. B. & R. Hist. N. Am. B. III. 1874, 

 223. 



Diagnosis. Adult male: "Front, crown, and occiput sooty 

 black; upper plumage dull bluish-ash, the feathers of the back 



