28 COHACIIDiE. 



spicuous 'broad alar bar ; innermost secondaries olive-brown like 

 the scapulars, with which they imperceptibly blend ; lower portion 

 of back, rump, and upper tail-coverts brilliant ultramarine, the latter 

 sli2;htly tin"-ed with a cobalt lustre ; tail brilliant cobalt, more 

 especially on the under surface, the shafts black, and the two outer 

 tail-feathers elongated, the ends being black glossed with blue, 

 all the tail-coverts being barred indistinctly in some lights ; lower 

 part of the breast, belly, and under tail-coverts deep ultramarine- 

 blue, with a faint cobalt lustre on the latter ; thighs also ultra- 

 marine, but brilliant cobalt on the inner side of the leg, just above 

 the tarsal joint ; under wing-coverts and axillaries brilliant cobalt. 

 Total length 15 inches, culmen 1-45, wing 7'5, tail 7"3, tarsus 1. 

 Hah. Senegambia. 



(I. J' ad. sk. Senegal (d'Emville). Riocour Coll. 



6. Ad. sk. Senegambia. Purchased, 



c, d. Ad. sk. River Gambia. Sharpe Coll. 



e. Ad. sk. River Gambia (Sir A. Shelley Coll. 



Molonei/). 



f,ff,h. Ad. sk. Dakar, Jan. (i. Laglaize). Tweeddale Coll. 



5. EURYSTOMUS. 



Type. 



Eurystomus, Vieill. Analyse, p. 37 (181G) E. orientalis. 



Colaris, Cm. Begne Anim. i. p. 401 (1817) E. orientalis. 



Cornopio, Cab. |- Heine, Mus. Hein. Th. ii. p. 119 



(18(50) E. afer. 



Range. The whole of tropical Africa and Madagascar. India and 

 Ceylon through the Burmese countries north to Manchuria and 

 Northern China ; south through the Burmese countries, and all over 

 the Malay Archipelago to Australia. 



Key to the Species. 



a. Tail light blue, with a black terminal band and 

 black shaft; underparts lilac or cinnamon- 

 brown like the back. 

 a'. Under tail-coverts greenish blue ; no blue 

 throat-patch. 



«". Larger: wing 8-3 inches ylaucurm, p. 29. 



h". Smaller : wing not e.xceeding 7-5 inches . afer, p. 30. 

 6'. Under tail-coverts cinnamon like the breast ; 

 a large patch of greenish cobalt on the 



throat ■_.: gularis, p. 32. 



h. Tail black, bluish at base only or shaded with 

 purplish blue, 

 c'. Throat streaked with bright purplish blue, 

 forming a gular patch. 

 c" . With a black tip to the culmen. 



a'". Terminal half of tail black, not shaded 

 with puifjlifsh blue above ; head black- 

 ish, as also the mantle ; shorter secon- 

 daries black, or with only a marginal .,.;^^^^^^^. 33^ 

 shade ot purplish blue 1 1^^■^^.^ ^\^q 



