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Show 584 MR. R. B. SHARPE ON THE CUCULIDAE [June 17, thought that the longer wing of the latter might hold good as a specific character. That it does not do so will be seen by the following measurements:- No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Locality. Cape. S. Africa. i» „ (Layard). .i Cape Town (Butler). »» Natal (Ayres). Accra (Haynes). Fantee. »> EMus. Brit. Reg. )» R. B. Sharpe. j» D >> >» J. H. Gurney. Brit. Reg. R. B. Sharpe. »> >> Long. tot. 115 11-5 120 11-5 12-0 12-0 121 11-2 10-5 11-5 11-7 11-2 Ala\ 7-0 7*2 6-8 6-8 6*8 71 70 6-9 6*5 G-4 7*0 6-4 4. CUCULUS GABONENSIS. Cuculus gabonensis, Lafr. Rev. et Mag. de Zool. 1853, p. 60 ; Hartl. J. f. O. 1854, p. 202; J. & E. Verr. Rev. et Mag. de Zool. 1855, p. 177; Hartl. Orn. W . Afr. p. 189 (1857) ; Cass. Pr. Phil. Acad. 1859, p. 142; Hartl. J. f. O. 1861, p. 265; D u Chaillu, Eq. Afr. p. 473 (1861); Cab. & Heine, Mus. Hein. Th. iv. p. 42, note (1862) ; Gray, Hand-1. B. ii. p. 215 (1870). Adult. Above dark greyish black, with a very slight gloss of dull bluish-green; quills brown, glossed like the back, a few of the primaries marked with white near the base of the inner web; tail blackish, tipped with white and marked with a few spots of white along the shaft; lores mottled with rufous ; fore part of the cheeks and a line of feathers under the eye greenish black, like the head ; entire throat, chest, and fore neck deep cinnamon-chestnut or bay, forming a conspicuous gorget, below which a few black feathers form an indistinct band ; rest of under surface buffy white, transversely crossed with blackish bars, which are slightly glossed with greenish on the flanks ; under tail-coverts creamy white, some of the centre ones barred with black ; feathers at the side of the vent greenish black ; under wing-coverts white, barred with black like the breast, the greater ones entirely black ; bill blackish brown; feet golden yellow, claws horn-brown. Total length 11*5 inches, culmen 0*9, wing 6*8, tail 6*2, tarsus 0*75. Hab. Gaboon (Verreaux, Mus. Brit.) ; Camma River (Du Chaillu). 5. CUCULUS AURANTIIROSTRIS, sp. n. Cuculus gulai-is, Hartl. Orn. W . Afr. p. 189 (1857). Above rather dark grey, with a slight greenish gloss in the centre of the back, the rump and upper tail-coverts scarcely lighter, the latter with a narrow white tip ; wing-coverts of the same colour as |