(syn. Falco Ϯ Dickinson's Kestrel F. dickinsoni) Gr. δισσος dissos double < δις dis twice < δυο duo two; δεκτης dektēs biter < δακνω daknō to bite; "FALCO DICKINSONI, sp. nov. ... The general form of this bird is completely that of Falco ardesiacus (Vieill.) of Western Africa. Together with that bird and Falco zoniventris, Peters, of Madagascar, it evidently forms a distinct section among the Hobbies (Hypotriorchis), for which I suggest the subgeneric name Dissodectes*, indicating thereby the peculiarity of their doubly-toothed mandible — a feature in which they resemble the Harpagi of South America. *δισσος, duplex, et δηκτης, mordicator." (P. Sclater 1864); "Dissodectes P. L. Sclater, Proc. Zoöl. Soc. London, 1864, p. 248. Type, by subsequent designation, Falco dickinsoni P. L. Sclater. (Sharpe, Cat. Bds. Brit. Mus., 1, 1874, p. 423.)" (Peters 1931, 1, 297).