( 377 ) 



T. licingstonei, he redescribed as T. hyhridm those specimens which are a little or 

 innch more, but not quite so blue as t^vpical T. reichenowL There are only two 

 possibilities. Either T. reicfmioiri is nothing but a blue aberration of T. lirlng- 

 stonei. In that case it is astonishing how frequently it occurs in German East 

 Africa, while it has only once been found in South Mozambique (Beira). 



The other possibility is that T. reiclienowi is a distinct species, which occurs in 

 German East Africa side by side with T. I. cabanisi, and has so often hybridised with 

 the latter species that both species are beginning to form a new intermediate species. 



I have compared the following specimens of the northern bird : 



(a) Greenest {cahrousi): Three, Bagamoyo, Fischer coll. (Berlin, Stuttgarl); 

 one, Ngnni (Tring); three, Ugogo, Kirk coll. (London); one, Mjjapwa, Ugogo, 

 Baxter coll, (London) ; one, East Uluguru, Stuhlmann coll. (Berlin). 



(h) More blue {ki/hntlus) : one, iflugnrn, Stuhlmann coll. ; one, Kipunga, Froram 

 coll. ; one, Simba Muene, Emin coll., all in Berlin. 



{c) Still more blue : one, Mrogoro, Stuhlmann coll., and one, Maruji, v. Trotha 

 coll. in Berlin ; and one north of Beira, C Grant coll. in Loudon. 



(rf) Bluest (i-eickenoici) : one, Nguru, Fischer coll. (the type), and one, Dar-es- 

 Salaam, Stuhlmann coll. — both in Berlin. 



Even neglecting the startling locality Beira, it is to be seen that no geo- 

 graphical limits are to be found between the green and the blue birds. 



But it is strongly to be wished that a true ornithologist will some day 

 collect good series of these birds with exact localities — a task which cannot 

 be too difficult, as these birds occur close by, or even at the coast. 



29. Turacus living'stonei schalowi (Rchw.). 



Thi.s form is distributed over the whole of Portuguese West Africa from 

 Mossamedes to the Congo. It is at once distinguished from the foregoing species 

 by its long crest, which, however, has not a metallic gloss before the white tips. 

 The white line below the eye is always present, but only half as broad as in 

 T. I. limigstonei. 



The following specimens are in the Tring Mnseum : 

 S. Luissango, Angola .... 1886. Anchieta coll. 



c?. Nimbo, Loanda River, Angola . . viii. 97. Penrice ,, 



2 ??. N'guDgo, North Bailundu, Angola . 8-31. vii. 01. Peniberton coll. 



2 SS. Cunje River, near Pedreira, Bih^, 



Angola . . . . . . . 6. xi. 04. Ansorge coll. 



?. Bigondo, Bihe, Angola . . . . 23. x. 04. „ „ 



3c?(?, 2??. Chissamba, Bihe, Angola . 17-19. xi. 04. „ „ 



1 c?, 1 ?. Bongo River, Benguella . . 6. viii. 04. „ „ 



1 ad. Mossamedes Mocqnerys coll. 



I may add here the exact description of a very interesting geographical form, 

 which occurs on the west coast of Lakes Nyassa and Tanganyika, and between these 

 two lakes — viz. T. I. manaigensis Rchw., Vog. Afr. ii. p. 52, in the text. Similar 

 to T. I. schalowi, but the tail is more blue and less purple, the white line below 

 the eye is broader than in T. I. sclialoiri, but narrower than in T. I. liriugstonei ; 

 the crest-feathers are strongly developed as in T. I. chalcolophus and 7'. /. loitaiius, 

 and are metallic green before the white tip. 



This character is very well shown in good skins from the west coast of 

 Lake Nyassa, while it is not so well to be seen in the two (younger ?) type-specimeqs 



