Literature
- Baard, E. 1994. Cape Tortoises; their identification and care. Cape Nature Conservation, Cape Town. 68 pp.
- Bayoff, N. 1995. Observations and morphometric data on the Namaqualand speckled tortoise, Homopus signatus signatus (Gmelin, 1789), in South Africa. Chelonian Conserv. Biol. 1(3): 215-220.
- Bour, R. 1988a. Taxonomic and nomenclatural status of Homopus signatus (Gmelin, 1789): Reptilia—Chelonii. J. Herpetol. Assoc. Africa (35): 1-6.
- Boycott, R. 1986. A review of Homopus signatus (Schoepff) with notes on related species (Cryptodira: Testudinidae). J. Herpetol. Assoc. Africa 32: 10-16.
- Boycott, R. C. 1989b. Homopus signatus. Namaqualand speckled padloper, Peer's padloper (for southern race) (English); Gifskilpadjie, Klipskilpadjie, Namaqualandklip-skilpadjie (Afrikaans). In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 82-84. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
- Branch, W. R., G. A. Benn, and A. T. Lombard. 1995. The tortoises (Testudinidae) and terrapins (Pelomedusidae) of southern Africa: their diversity, distribution and conservation. S. Afr. J. Zool. 30(3): 91-102.
- Daudin, F. M. 1802. Histoire naturelle, générale et particulière des reptiles. 2. F. Dufart, Paris. 432 pp.
- Eglis, A. 1962. Tortoise behavior: a taxonomic adjunct. Herpetologica 18: 1-8.
- Gmelin, S. G. 1789. Caroli à Linné,... Systema Naturae.... 13th ed., vol. 1.
- Greig, J. C., and P. D. Burdett. 1976. Patterns in the distribution of Southern African terrestrial tortoises (Cryptodira: Testudinidae). Zool. Africana 11: 249-273.
- Hewitt, J. 1935. Some new forms of batrachians and reptiles from South Africa. Rec. Albany Mus. 4: 283-357.
- Loehr, V. J. T. 1996. De Namaqualand gespikkelde padloper (Homopus s. signatus), waarnemingen in de natuur en verzorging in gevangenschap (met aanvullend bericht over de voortplanting). De Schildpad 23(2): 42-51.
- Loehr, V. J. T. 1997a. Homopus signatus signatus, Namaqualand speckled padloper, captive breeding. Afr. Herpetol. News 26: 23-24.
- Loehr, V. J. T. In press. Husbandry, behavior and captive breeding of the Namaqualand speckled padloper (Homopus s. signatus). Chelonian Conservation and Biology. .
- Loehr, V. J. T. and Harris-Smith, T. J. In press. Homopus s. signatus, Speckled padloper, Natural diet. African Herp News. .
- Loveridge, A., and E. E. Williams. 1957. Revision of the African tortoises and turtles of the suborder Cryptodira. Bull. Mus. Comp. Zool. Harvard 115: 163-557.