544 Recently published Ornithological Works. 



the same river, as that district has been little visited by 

 collectors. Specimens of about 123 species were obtained 

 here, and their examination proves that the Avifauna of the 

 Guaso Nj'iri is nearly allied to that of Somaliland. 



The migratory birds recorded by the Expedition were of 

 29 speciesj all previously recorded from Eastern Africa. 



In the systematic portion of the Report, which follows, 

 general remarks are given on the species, of which specimens 

 were brought home by the Expedition, They are arranged 

 in the same order as in Reichenow's ' Vogel Afrikas,' and 

 a reference is given in every case to that work. Two 

 Ostriches are included in the List — Struthio massaicus 

 (representing *S. camelus) and the very distinct Somali 

 Ostrich S. molybdophanes, of which a fine male specimen 

 was obtained on the " Acacia-steppe " south of the river 

 Guaso Nyiri. A new subspecies of Guinea-fowl is described 

 (p. 47) as Numida ptilorhyncha rendilis, while Alseonax pseudo- 

 grisea (with some doubt) receives a new name (p. 82). 



Many field-notes accompany the systematic list of this 

 memoir and greatly increase its value. We know as yet far 

 too little of the habits and manners of the Birds of British 

 East Africa, although our National Collection is abundantly 

 supplied with specimens. 



72. Martorelli on Falcons. 



[II Falco feldcffjgi Schlegel e I suoi afiiui. By Prof. Giucinto 

 JMartorelli. Reprinted from Atti Soc. Ital. Sci. Nat. vol. 1.] 



This article gives a veiy full account of the Lanner Falcon 

 and its allies, their phases, distribution and so fox'th, with 

 illustrations of various species. 



73. Martorelli on Hybrid Pheasants. 



[Nota sopra alcuni ibridi fra 11 '•' Diardujallus diardi " Ep. ed il 

 *' Gennceus melanonotus " (BIythJ. By Prof. Giacinto Martorelli. 

 Ueprinted from Pevista Ital. di Oru. vol. i, pp. 75-80, col. pi.] 



The author gives an interesting account of the above- 

 mentioned hybrid, and figures the male of the former 

 species and the female of the latter. 



