collected in East Africa. 311 



feathers. It is not a little remarkable that the very differences 

 which are sexual in the present species are specific in the 

 smaller Barbets of this genus, T. boehmi and T. arnaudi. At 

 present, however, I must consider the latter two species to be 

 distinct, on the evidence before us, as the skins in the British 

 Museum do not warrant me in uniting them, though I should 

 never be surprised to learn that they were merely sexes of 

 one species. Mr. Jackson's specimen of T. arnaudi is a 

 female, and so is the only sexed specimen receiveci from 

 Emin Pasha. On the other hand, the specimens of T. boehmi 

 obtained by Mr. Jackson are males. Mr. Hunter, however, 

 has procured birds identified as males and females of 

 T. boehmi on Kilimanjaro, and the distribution of the two 

 birds so far points to their being of separate species. 



183. Trachyphonus boehmi. 



Trachijphonus boehmi, Fischer & Reichcn. J. f. O. 1884, 

 p. 179 (Pare Mountains, Aruscha, Ukamba, Barawa) ; Fischer, 

 Zeitschr. i. p. 371 (1884) ; id. J. f. O. 1885, p. 125 (Wapo- 

 komo-land; Wanika-land) ; Shelley, Cat. B. Brit. Mus. xix. 

 p. 104; id. P. Z. S. 1889, p. 357 (Teita; Useri River) ; Emin, 

 J. f. O. 1891, p. 59 (Ugogo). 

 No. 54. c^. Kitiua, Jan. 21, 1889. 

 No. 125. $. Machako's, April 9, 1889. 



See remarks on T. erythrocephalus (above). 



184. Trachyphonus arnaudi. 



Trachyphonus arnaudi, Reichen. J. f. O. 1887, p. 60 

 (Kagehi); Shelley, Cut. B. Brit. Mus. xix. p. 105 (1891). 

 No. 146. ? ad. Turquel, Siik, Dec. 30, 1889.— Plentiful in 

 scrub-plain. 



Agrees with specimens from Lado collected by Emin Pasha. 



Order PSITTACIFORMES. 

 Fam. PsiTTACiD^,. 



185. PjEocephalus rufiventris. 



Pionias rufiventris (Riipp.) ; Heugl. Orn. N.O.-Afr. ii. 

 p. 741 ; Fischer, Zeitschr. i. p. 372 (1884 ; Pare) ; id. J. f. O. 

 1885, p. 122 (Pangani River from Mkaramo to the Litema 



