Recently published Ornithological Works. 279 



and North-western Africa/' but does not refer to its Eastern 

 range^ except incidentally by including in the list of speci- 

 mens at the British Museum one from Bogos Land, where, 

 according to Von Heuglin, it is resident, as also about Lake 

 Tana and on the Blue and White Niles *. 



The Leyden and Norwich Museums contain specimens 

 from Nubia, and that of Brussels one obtained in Arabia f- 



In Western Africa D. ardesiacus is found as far north as 

 the river Gambia, specimens from thence being preserved in 

 the British and Leyden Museums ; whilst on the other side 

 of the equator it has been found to extend to the southern 

 parts of Angola in the vicinity of the river Cuuene %. 



The geographical range of the other two species of Dis- 

 sodectes is much more limited than that of D. ardesiacus ; 

 but that of D. dickinso7ii nevertheless extends across the 

 African continent, it having been originally obtained in the 

 Zambesi district of East Africa, and subsequently in West 

 Africa at Caconda in Benguela §, where it appears, in very 

 numerous flocks, in the month of August, the time of the 

 forest-fires, chasing the insects which are disturbed by the 

 flames. 



The remaining species of the subgenus, D. zoniventris, 

 appears to be entirely confined to Madagascar. 



XXIV. — Notices of recent Ornithological Publications. 



[Continued from p. 169.] 



33. Agassiz's Report on the Museum of Comparative Zoology. 



[Annual Report of the Curator of the Museum of Comparative Zoology 

 at Harvard College for 1879-80. Cambridge : 1880.] 



The report gives a most gratifying account of the progress 

 of this noble institution. During the twenty years that have 



* Orn. N.O.-Afr. vol. i. p. 35. 

 t Schlegel, Mus. des Pays-Bas, Falcones, p. 21. 

 X Du Bocage, Orn. d' Angola, vol. i. p. 54. 



§ Du Bocage, Orn. d'Angola, vol. i. p. 55 ; also 17th List of Birds of 

 Portuguese West Africa, p. 9, 19th List, p. 3, and 20th List, p. 16. 



