Grayiinae

Grayia
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Subfamily:	Grayiinae
Genus:	Grayia Günther, 1858
Species
4, see article.

4, see article.

Grayia is a genus of colubrid snakes commonly referred to as African water snakes.

The generic name, Grayia, is in honor of British herpetologist John Edward Gray.

The following four species are recognized as being valid.

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Grayia.

The specific name, smythii, is in honor of Norwegian botanist Christen Smith. The specific name, tholloni, is in honor of François-Romain Thollon (1855–1896) who was a French collector of natural history specimens in Africa.

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Wikipedia