| Boulenger, G. A. (1885). On the american box-tortoises. Annals and Magazine of Natural History, 15, 330–331. |
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| Added by: Admin 06 Jan 2014 18:22:40 UTC |
Pop. 4.5%
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| Boulenger, G. A. (1888). Description of a new land-tortoise from south africa, from a specimen living in the society's gardens. Proceedings of the Zoological Society of London, 1888, 251. |
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| Added by: Admin 06 Jan 2014 18:24:08 UTC |
Pop. 4.25%
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| Boulenger, G. A. (1886). On the south-african tortoises allied to testudo geometrica. Proceedings of the Zoological Society of London, 1886, 540–542. |
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| Added by: Admin 06 Jan 2014 18:22:40 UTC |
Pop. 4.5%
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| Boulenger, G. A. (1888). On new or little known south african reptiles. Annals and Magazine of Natural History, 2, 136–141. |
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| Added by: Admin 06 Jan 2014 18:24:08 UTC |
Pop. 5%
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| Boulenger, G. A. (1921). Description of a new land-tortoise from northern persia. Journal of the Bombay Natural History Society, 27, 251–252. |
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| Added by: Admin 06 Jan 2014 18:24:07 UTC |
Pop. 5.25%
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