284 Mr. C. H. B. Grant on a Collection of 



Irrisor erythrorhynchus senegalensis. 



Falcinellus senegalensis Vieill. Enc. Meth. vol. ii. 1823, 

 p. 580 : Senegal. 



Of this, Nectarinia melanorynchos Licht. (Verz. Doubl. 

 1823, p. 15 : Senegal), and Irrisor eryihrorhynchus guineensis 

 Reichw. (Orn. Monatsb. 1902, p. 79 : Portuguese Guinea) 

 become synonyms. 



The series in the National Collection shows that " sene- 

 galensis" is not a black-billed race, but ultimately assumes a 

 red bill. 



Adult. General appearance much darker than/, e. marwitzi; 

 mantle, neck, and breast strongly washed with blue, top of 

 head greenish, throat rather more steely blue than in /. e. 

 marwitzi, tail on the average longer, 9 to 11 inches, central 

 tail-feathers steely blue on the upper surface, faintly Avashed 

 with purple. Spots on wings and tail large, inside of wings 

 washed with green. 



Immature. Mantle and breast slightly more bronzy than 

 in the adult. 



Young. Body and head black Avashed with violet and 

 purple-blue as in /. e. marwitzi, but differing from the young 

 of that race in having the tail longer and the central feathers 

 steely blue on their upper surface. 



Range. Senegal and Gambia, Portuguese Guinea, Gold 

 Coast, Dahomey to Lake Chad. 



Note. This race retains the black bill of the young for a 

 rather long time and does not assume the red bill with the 

 first moult. 



Irrisor erythrorhynchus angolensis. 



Irrisor erythrorhynchus var. angolensis Reichw. Vog. Afr. 

 ii. 1902, p. 339 : Kakonda, Angola. 



Adult. Similar to /. e. marwitzi, but having the top of 

 the head steel-blue. Spots on wings and tail large. Tail 

 about 9 inches. 



Range. Angola. 



Irrisor erythrorhynchus niloticus. 

 Irrisor erythrorhynchus niloticus Neum. Orn. Monatsb. 

 1903, p. 181 : Goz abu Guraa, White Nile. 



