Herpetology Department
 
 

Scientific articles

Douglas, R.M., Holmes, P.J. & Tredoux, M. 2010. New perspectives on the fossilization of faunal remains and the formation of the Florisbad archaeozoological site, South Africa. Quaternary Science Review 29: 3275-3285.

Broadley, D.G. & Bates, M.F. 2009. New range extensions for Dasypeltis atra Sternfeld in Tanzania (Serpentes: Colubridae) with a review of the distribution of colour phases. African Journal of Herpetology 58(1): 50-55.

Bates, M.F. 2007. First records of the Cape Girdled Lizard, Cordylus cordylus (Linnaeus, 1758), in Lesotho. Navorsinge van die Nasionale Museum, Bloemfontein 23(6): 185-195.

Douglas, R.M. 2007. Acariphagy in amphibian and reptile diet studies: what are the probabilities? Biota 8(1-2): 11-25.

Douglas, R.M. 2006. Is the spring water responsible for the fossilization of faunal remains at Florisbad, South Africa. Quaternary Research 65(1): 87-95.

Douglas, R.M. 2006. Formation of the Florisbad spring and fossil site – an alternative hypothesis, Journal of Archaeological Research 33(5): 696-706.

Douglas, R.M. & Rall, M. 2006. Seasonal sheltering selection by Leopard tortoises (Geochelone pardalis) in the Franklin Nature Reserve, Free State, South Africa. Chelonian Conservation and Biology 5(1): 121- 129.

Bates, M.F. 2005. Taxonomic history and geographical distribution of the Pseudocordylus melanotus (A. Smith, 1838) and P. microlepidotus (Cuvier, 1829)complexes (Sauria: Cordylidae). Navorsinge van die Nasionale Museum, Bloemfontein 21(4): 37-112.

Bates, M.F. & Haacke, W.D. 2003. The frogs of Lesotho: Diversity and distribution. Navorsinge van die Nasionale Museum, Bloemfontein 19(6): 101-158.

Bates, M.F. 2002. The distribution of Amietia vertebralis (Hewitt, 1927) (Anura: Ranidae), with comments on its taxonomic and conservation status. Navorsinge van die Nasionale Museum, Bloemfontein 18(5): 77-96.

Douglas, R.M. 2001. The quality of the Florisbad spring-water in relation to the quality of the groundwater and the effects of rainfall. Water SA 27 (1): 39-48.

Douglas, R.M. 2001. The salinization of the Florisbad organic layers, clay and groundwater. Navorsinge van die Nasionale Museum, Bloemfontein 17 (1): 1-24.

Douglas, R.M. 2000. Further evidence for mites as secondary and tertiary prey in the gastrointestinal tract of frogs and snakes. Herpetological Review 31 (2): 76-78.

Flemming, A.F. and Mouton, P. le F.N. 2000. Geographic variation in sexual size dimorphism in the rock agama, Agama atra (Sauria: Agamidae) African Zoology 35(2): 233-249.

Flemming, A.F. & Bates, M.F. 1999. Reptiles of Mkomazi. Chapter 25, pp. 411-428. In: Coe, M.J., McWilliam, N.C., Stone, G.N. & Packer, M.J. (Eds), Mkomazi: The Ecology, Biodiversity and Conservation of a Tanzanian Savanna. Royal Geographical Society (with the Institute of British Geographers), London.

Heideman, N.J.L. & Bates, M.F. 1999. Diet as possible indicator of size-related microhabitat partitioning in Mabuya striata wahlbergii (Peters 1869) (Reptilia: Scicidae). African Journal of Ecology 37: 110-112.

Bates, M.F., Heideman, N.J.L., Wilson, B.A., Hendricks, M.G.J., Don, N. & Moses, C. 1998. Morphological variation and geographical distribution in the South African lizards Typhlosaurus caecus (Cuvier 1817) and T. vermis Boulenger 1887 (Scincidae: Acontinae). African Journal of Herpetology47(2): 35-41.

Heideman, N.J.L. 1998. New distribution records for Agama etoshae (McLachlan, 1981) in northern Namibia. Israel Journal of Zoology 43: 405-407.

Heideman, N.J.L. 1998. Reproduction in Agama etoshae McLachlan 1981 from Namibia. Amphibia-Reprilia 19: 99-103.

Bates, M.F. 1997. Herpetofauna of the nature reserves and national parks of the Free State province of South Africa. African Journal of Herpetology46(1): 13-29.

Douglas, R.M. 1997. The influence of the central-western Orange Free State panveld on the distribution of amphibians and reptiles. In: (Ed. J.H. van Wyk) Proceedings of the FitzSimons Commemorative Symposium South African Lizards: 50 Years of Progress and the Third H.A.A. Symposium on African Herpetology 152-154.

Heideman, N.J.L. 1997. The effect of varying photothermal regime on testicular activity in Agama aculeata aculeata Merrem, 1820 and Agama planiceps planiceps Peters, 1862 (Reptilia: Agamidae). Journal of African Zoology 111: 95-107.

Bates, M.F. 1996. New reptile distribution records for the Free State province of South Africa. Navorsinge van die Nasionale Museum, Bloemfontein 12(1): 1-47.

Bates, M.F. 1996. Taxonomic status and distribution of the South African lizard Tetradactylus breyeri (Gerrhosauridae). South African Journal of Zoology 31(4): 214-218.

Billawer, W.H. & Heideman, N.J.L. 1996. A comparative analysis of diurnal behavioural activities in males of Agama aculeata aculeata and Agama planiceps planiceps (Reptilia: Agamidae) in Windhoek, Namibia. African Journal of Herpetology 45(2): 68-73.

Du Preez, L.H., Kok, D.J. and Seaman, M.T. 1996. Host recognition behavior of polystome oncomiracidia (Polystomatidae: Manogenea) in contact with natural and substitute anuran hosts. Journal of African Zoology 111(1): 47-55.

Heideman, N.J.L. 1996. The effect of varying photothermal regime on testicular activity in Agama aculeata aculeata Merrem, 1862 and Agama planiceps planiceps Peters, 1962 (Reptilia; Agamadae). Journal of African Zoology 111(2): 95-107.

Bates, M.F. 1995. Distribution and diversity of amphibians in the Free State, South Africa. Madoqua 19(1): 3-14.

Douglas, R.M. 1995. The herpetofauna of Florisbad Research Station as largely determined by array trapping. Navorsinge van die Nasionale Museum, Bloemfontein 11(6): 121-148.

Du Preez, L.H. and Kok, D.J. 1995. Polystomatid (Monogenea) of southern African Anura: Polystoma claudecombesi n. sp. parasitic in Rana angolensis Bocaage. Systematic Parasitology 30: 223-231.

Du Preez, L.H. 1995. Anuran community structure in the Vernon Crookes Nature Reserve, South Africa. Madoqua 19(1): 25-29.

Flemming, A.F. & Bates, M.F. 1995. Male and female reproductive cycles of Bibron's Gecko Pachydactylus bibronii (Sauria: Gekkonidae) in the Free State province of South Africa. Journal of African Zoology 109(5/6): 409-422.

Heideman, N.J.L. 1995. Is Agama planiceps planiceps better adapted for high running speed and agilit than Agama aculeata aculeata? Inferences from their morphology. Cimbebasia 14: 17-21.

Channing, A., du Preez, L.H. and Passmore, N. 1994. Status, vocalization and breeding biology of two species of African bullfrogs (Ranidae: Pyxicephalus). Journal of the Zoological Society of London 234: 141-148.

Flemming, A.F. 1994. The male and female reproductive cycles of the viviparous lizard Mabuya capensis (Sauria: Scincidae). Journal of Herpetology 28: 334-341.

Flemming, A.F. 1994. Male and female reproductive cycles of the vivparous lizard, Mabuya capensis (Sauria: Scincidae) from South Africa. Journal of Herpetology 28(3): 334-341.

Flemming, A.F. 1994. Reproductive cycles of the snakes Psammophis crucifer, P. leightoni and P. notostictus (Serpentes: Colubridae) in the Orange Free State, South Africa. Journal of the Herpetological Association of Africa 43: 19-27.

Maritz, M.F. & Douglas, R.M. 1994. Shape quantization and the estimation of volume and surface area of reptile eggs. Journal of Herpetology 28(3): 281-291.

Van Wyk, J.H. 1994. Fat body and liver cycles in the large girdled lizard Cordylus giganteus. Amphibia-Reptilia 15: 153-169.

Douglas, R.M. 1993. High water potential vermiculite as an incubation medium for reptile eggs. British Herpetological Society Bulletin 45: 5-13.

Douglas, R.M. 1993. High water potential vermiculite as an incubation medium for reptile eggs. Australian Herpetological News 13: 4-8 (Reprinted from Br. Herp. Soc. Bull. 45: 5-13).

Du Preez, L.H. & Kok, D.J. 1993. Polystomatidae (Monogenea) of Anura in southern Africa: Polystoma testimagna n.sp. parasitic in Strongylopus f. fasciatus (Smith, 1849). Systematic Parasitology 25: 213-219.

Flemming, A.F. 1993. Seasonal variation in testicular and fat-body weight and plasma testosterone and androstenedione concentration in the lizard Cordylus polyzonus (Sauria: Cordylidae). South African Journal of Zoology 28: 127-131.

Flemming, A.F. 1993. The female reproductive cycle of the viviparous lizard Pseudocordylus m. melanotus (Sauria: Cordylidae). Journal of Herpetology 27(1): 103-107.

Flemming, A.F. 1993. The male reproductive cycle of the lizard Pseudocordylus m. melanotus (Sauria: Cordylidae). Journal of Herpetology 27(4): 473-478.

Bates, M.F., De Swardt, D.H. & Louw, S. 1992. A note on the diet of the Yellowbilled Egret. Ostrich 63(1): 44.

Douglas, R.M. 1992. The use of adrenalin in the treatment of snake venom opthalmia caused by southern African spitting cobras. Cobra (Madras Snake Park Trust, India) 6: 3-5.

Douglas, R.M. 1992. The use of adrenalin in the treatment of snake venom opthalmia caused by southern African spitting cobras. African Herp News 18: 29-31. (Reprinted from Cobra (Madras Snake Park Trust, India) 6: 3-5.

Douglas, R.M. 1992. Microscopic investigation of the digestive tract contents of spotted grass snakes, Psammophylax rhombeatus rhombeatus. Journal of African Zoology 106: 401-411.

Douglas, R.M. 1992. Acari as tertiary prey in the gut of the rhombic or spotted skaapsteker, Psammophylax rhombeatus rhombeatus. South African Journal of Science 88: 450-451.

Du Preez, L.H. and Kok, D.J. 1992. Syntopic occurrence of new species of Polystoma and Metapolystoma (Monogenea: Polystomatidae) in Ptychadena porosissima in South Africa. Systematic Parasitology 22: 141-150.

Du Preez, L.H. 1992. Can the keratodont ultrastructure of larval anurans be used as a taxonomic character? Electron Microscopy Society of Southern Africa 22: 111.

Flemming, A.F. and van Wyk, J.H. 1992. The female reproductive cycle of the lizard Cordylus p. polyzonus (Sauria: Cordylidae) in the southwestern Cape Province, South Africa. Journal of Herpetology 26(2): 121-127.

Bates, M.F. 1991. A re-evaluation of the taxonomic status of Xenocalamus bicolor concavorostralis Hoffman, 1940 (Serpentes: Atractaspidinae). South African Journal of Zoology 26(2): 78-81.

Bates, M.F. 1991. A provisional check list of the reptiles and amphibians of Golden Gate Highlands National Park. Koedoe 34(2): 153-155.

Van Wyk, J.H. 1991. Biennial reproduction in the female viviparous lizard Cordylus giganteus. Amphibia-Reptilia 12: 329-342.

Douglas, R.M. 1990. Volume determinations of reptilian and avian eggs with practical applications. (With a computer program in BASIC for calculations in the paper available on request) South African Journal of Wildlife Research. 20(3): 111-117.

Douglas, R.M. 1990. The effects of temperature on embryonic sex determination and behaviour in reptiles, with special reference to Eublepharis macularius. Journal of the Herpetological Association of Africa 38: 28-31.

Douglas, R.M. 1990. Fire prevention and control in Museums. South African Museums Association Bulletin (SAMAB) 18 (5): 195-210.

Van Wyk, J.H. 1990. Seasonal testicular activity and morphometric variation in the femoral glands of the lizard Cordylus polyzonus (Sauria: Cordylidae). Journal of Herpetology  24: 405-409.

Bates, M.F. 1989. Tail break frequency, tail size and the extent of caudal autotomy in the Cape thick-tailed gecko, Pachydactylus capensis capensis (Sauria: Gekkonidae). Navorsinge van die Nasionale Museum, Bloemfontein 6(7): 223-242.

Douglas, R.M. 1989. A new method of cross-sectioning hair of larger mammals. South African Journal of Wildlife Research 19 (2): 73-76.

Douglas, R.M. 1989. Analysis of a Python anchietae faecal sample. Herpetological Review 20 (3): 59-60.

Van Wyk, J.H. 1983. Seasonal breeding in the female rock lizard Agama atra (Sauria: Agamidae) in the south-western Cape Province with special reference to possible environmental controlling factors. Navorsinge van die Nasionale Museum, Bloemfontein 4(8): 193-208.

De Waal, S.W.P. 1980. The Testudines (Reptilia) of the Orange Free State, South Africa. Navorsinge van die Nasionale Museum, Bloemfontein 4(3): 85-91.

De Waal, S.W.P. 1980. The Salientia (Amphibia) of the Orange Free State, South Africa. Navorsinge van die Nasionale Museum, Bloemfontein 4(4): 93-120.

De Waal, S.W.P. 1978. The Squamata (Reptilia) of the Orange Free State, South Africa. Memoirs van die Nasionale Museum, Bloemfontein 11: 1-160.

Hoffman, A.C. 1944. Frogs from Chitiala, Nyasaland, together with descriptions of new species. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein1(14): 173-182.

Hoffman, A.C. 1944. A new species of Kassina from Zululand with a note on the occurrence and habits of the species by J.H. Power. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein1(13): 169-172.

Hoffman, A.C. 1942. Investigations on the anatomical characters of the genus Kassina, together with descriptions of the different species and of two new species. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(12): 113-166.

Hoffman, A.C. 1940. A new species of Xenocalamus from Bloemfontein. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(11): 111-112.

Hoffman, A.C. 1940. Reptiles and amphibians collected in Natal during January 1940. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(10): 103-110.

Hoffman, A.C. 1940. Three new species of frog from Greytown, Natal. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(9): 97-101.

Hoffman, A.C. 1939. A new frog from Thaba’Nchu. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(8): 89-95.

Hoffman, A.C. 1936. Die anatomie van die skouergordels en die ontwikkeling by die Urodle – Cryptobranchs allleghaniensi en Necturus maculatus. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(5): 33-50.

Hoffman, A.C. 1935. Oor die non-homologie van die medio-ventrale presonale skeletelemente by die amphibië, Anura en Urodele. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(2): 3-19.

Hoffman, A.C. 1935. Die sistematiese posisie van Heleophryn. Soölogiese Navorsinge van die Nasionale Museum, Bloemfontein 1(1): 1-2.