i^iQ.] Hieraaetus ayresi. 177 



from that bird and from N. pennatus by having seven distinct 

 dark bars across the tail and some blackish bars on the inner 

 lining of the wings. Lophoaetus occipitalis, the conaraonest 

 little Eagle in the Nyasa district, has an extremely long 

 crest, much darker plumage, and the tail crossed by only 

 four dark bands. L. Incani in the pattern of the tail and 

 under surface of the wings resembles the immature stage of 

 N. spilogaster, but is a very much smaller bird, with the 

 witig not more than 15*5 inches, which is the measurement 

 oE the wing of a specimen from Delagoa Bay, while in the 

 type from Landana it is 14'6 inches, and in the present 

 specimen only 13"7 inclies." 



From the above it would appear that Capt. Shelley had 

 only seen immature specimens, and probably males judging 

 from the wing-measurements, especially of the last. 



Lophotriorchis lucani Sharpe, Ibis, 190i, p. 102. 



Here Sharpe describes a specimen collected by Bates in 

 the Cameroons as follows : — " (J ad. Efulen, April 10, 

 1902, native name ' Ze-yop.' The adult plumage of tiiis 

 interesting Hawk-Eagle has now been ascertained for the 

 first time, and a brief description of it has been given. Bull. 

 B. O. C. xii. 1902, p. 79. The general colour is black, with 

 broad brown or greyish-brown bands on the scapulars, quills, 

 and tail-feathers; sides of face black; under surface pure 

 white, with a black patch on each side of the breast and 

 bl=ick axillaries ; thigh-feathers and under tail-coverts with 

 large terminal black spots ; under wing-coverts mostly 

 black ; quills white below with black tips and more or less 

 remains of narrow black bars. Total length about 20 inches, 

 culmen 1'45, wing 13'2, tail 8'5, tarsus 2*75.^^ 



Professor Neumann, in the Bull. B. O. C. xvi. 1906, p. 1 12, 

 has stated his opinion that this specimen is in reality a 

 small male of N. spilogaster. I rather doubt this, and the 

 specimen should be re-examined. 



Hieraaetus spilogaster Erlanger, J. f. O. 1904, p. 184, 

 pi. ix. 



As mentioned before, Erlanger has figured this species 

 under the above name from a pair collected in Somaliland. 



