| Williams, E. E. (1960). Two species of tortoises in northern south america. Breviora, 120, 1–13. |
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| Added by: Admin 25 Aug 2008 21:59:24 UTC |
Pop. 2.75%
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| Zachariah, T. T., Langan, J. N., & Kinsel, M. J. (2011). Presumed hypovitaminosis a secondary to chronic bile duct obstruction in a herman's tortoise (testudo hermanni). Proceedings of the Association of Reptile and Amphibian Veterinarians, 17, 86. |
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| Added by: Admin 06 Jan 2014 18:25:32 UTC |
Pop. 4.25%
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| Zhou, T., Huang, C., McCord, W. P., & Blanck, T. (2008). Gewerbliche zuchten von sumpf- und wasserschildkröten in china. Reptilia, 13(6), 27–33. |
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| Added by: Admin 18 Jul 2009 11:46:29 UTC |
Pop. 4%
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| Zug, G. R. (1966). The penial morphology and the relationships of cryptodiran turtles. Occasional Papers of the Museum of Zoology University of Michigan, 647. |
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| Added by: Sarina Wunderlich 27 Nov 2011 14:28:25 UTC |
Pop. 5.25%
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| Zwart, P., & van Vorstenbosch, C. J. A. H. V. (1998). Abweichende eischalen bei reptilien. Salamandra, 34(1), 81–92. |
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| Added by: Admin 14 Aug 2008 20:40:55 UTC |
Pop. 4.25%
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| Zwart, P., & Truyens, E. H. A. (1975). Hexamitiasis in tortoises. Veterinary Parasitology, 1(2), 175–183. |
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| Last edited by: Beate Pfau 01 Jan 2010 12:09:04 UTC |
Pop. 3.75%
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