J.  Hewitt, ?Anhydrophryne rattrayi, a remarkable new frog from Cape Colony?, Record of the Albany Museum, vol. 3, pp. 182-189, 1919.

J.  Hewitt and Methuen, P. A., ?Descriptions of some new Batrachia and Lacertilia from South Africa?, Transactions of the Royal Society of South Africa, vol. 3, pp. 107-111, 1912.

J.  Hewitt, ?A Guide to the Vertebrate Fauna of the Eastern Cape Province South Africa. Part II.?, 1937.