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Thomas Ziegler
Cologne Zoo
Cologne, Germany
6 articles by this author
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Research Article
A new species of Gracixalus (Anura, Rhacophoridae) from northwestern Vietnam
Tung Thanh Tran, Anh Van Pham,     Minh Duc Le, Nam Hai Nguyen, Thomas Ziegler, Cuong The Pham
10.3897/zookeys.1153.93566
 10-03-2023
 Unique: 353 | Total: 445  | Access Period:
 Reprint: € 7,00
 15-35
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Research Article
Hidden in the jungle of Vietnam: a new species of Quasipaa (Amphibia, Anura, Dicroglossidae) from Ngoc Linh Mountain
Cuong The Pham,     Chung Van Hoang,     Tien Quang Phan,     Truong Quang Nguyen, Thomas Ziegler
10.3897/zookeys.1124.89282
 10-10-2022
 Unique: 739 | Total: 1012  | Access Period:
 Reprint: € 5,00
 23-42
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Research Article
Two new cryptic species of Microhyla Tschudi, 1838 (Amphibia, Anura, Microhylidae) related to the M. heymonsi group from central Vietnam
    Chung Van Hoang,     Tao Thien Nguyen, Hoa Thi Ninh, Anh Mai Luong, Cuong The Pham,     Truong Quang Nguyen, Nikolai L. Orlov, Youhua Chen,     Bin Wang, Thomas Ziegler,     Jianping Jiang
10.3897/zookeys.1036.56919
 05-05-2021
 Unique: 1556 | Total: 2481  | Access Period:
 Reprint: € 8,00
 47-74
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Research Article
Integrative taxonomy reveals three new taxa within the Tylototriton asperrimus complex (Caudata, Salamandridae) from Vietnam
Marta Bernardes,     Minh Duc Le,     Truong Quang Nguyen, Cuong The Pham, Anh Van Pham,     Tao Thien Nguyen, Dennis Rödder, Michael Bonkowski, Thomas Ziegler
10.3897/zookeys.935.37138
 21-05-2020
 Unique: 2846 | Total: 4589  | Access Period:
 Reprint: € 12,00
 121-164
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Research Article
Re-examination of the Chinese record of Opisthotropis maculosa (Squamata, Natricidae), resulting in the first national record of O. haihaensis and description of a new species
    Jian Wang,     Zhi-Tong Lyu, Zhao-Chi Zeng, Chao-Yu Lin,     Jian-Huan Yang,     Truong Quang Nguyen,     Minh D. Le, Thomas Ziegler, Ying-Yong Wang
10.3897/zookeys.913.48622
 19-02-2020
 Unique: 2181 | Total: 3192  | Access Period:
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 141-159
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Research Article
A new species of Lycodon Boie, 1826 (Serpentes, Colubridae) from northern Vietnam
Helen Y. Janssen, Cuong T. Pham, Hanh Thi Ngo,     Minh Duc Le,     Truong Q. Nguyen, Thomas Ziegler
10.3897/zookeys.875.35933
 10-09-2019
 Unique: 2997 | Total: 4461  | Access Period:
 Reprint: € 9,00
 1-29
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