File snakes of the genus Gonionotophis have just been split into 4 genera.

https://www.tandfonline.com/doi/abs/10.1080/21564574.2018.1423578

Donald G. Broadley, Krystal A. Tolley, Werner Conradie, Sarah Wishart, Jean-François Trape, Marius Burger, Chifundera Kusamba, Ange-Ghislain Zassi-Boulou & Eli Greenbaum (2018) A phylogeny and genus-level revision of the African file snakes Gonionotophis Boulenger (Squamata: Lamprophiidae), African Journal of Herpetology, DOI: 10.1080/21564574.2018.1423578