Nguyen Tan Van
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View article: Figure 3 from: Zhang T, Ren J, Li M, Xu Y, Wang X, Poyarkov NA, Nguyen TV, Huang S (2025) First description of the male and hemipenial morphology of Opisthotropis haihaensis Ziegler et al., 2019 (Serpentes, Natricidae), with updated diagnosis and distribution. Biodiversity Data Journal 13: e167521. https://doi.org/10.3897/BDJ.13.e167521
Figure 3 from: Zhang T, Ren J, Li M, Xu Y, Wang X, Poyarkov NA, Nguyen TV, Huang S (2025) First description of the male and hemipenial morphology of Opisthotropis haihaensis Ziegler et al., 2019 (Serpentes, Natricidae), with updated diagnosis and distribution. Biodiversity Data Journal 13: e167521. https://doi.org/10.3897/BDJ.13.e167521 Open
Figure 3 Hemipenis of Opisthotropis haihaensis (specimen ANU 20240076, male). A Sulcal view of the fully everted organ; B Lateral view showing overall shape and spine distribution; C Apical view of the hemipenial lobes. Photographs by J.J.…
View article: Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le 2019
Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le 2019 Open
Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le, 2019 Materials Type status: Other material. Occurrence: catalogNumber: ANU 20240076; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 37B587F0-0…
View article: Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le 2019
Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le 2019 Open
Opisthotropis haihaensis Ziegler, Pham, Nguyen, Nguyen, Wang, Wang, Stuart & Le, 2019 Materials Type status: Other material. Occurrence: catalogNumber: ANU 20240076; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 37B587F0-0…
View article: Figure 9 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 9 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 9 Habitat and field observations of Trimeresurus loong sp. nov. A. The microhabitat of the new species in Anning, Kunming, China; B. Holotype QHU R2025027 in life, in situ; C. Paratype QHU R2025028 in life, in situ; D. Feces of the …
View article: Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng 2025, sp. nov.
Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng 2025, sp. nov. Open
Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng sp. nov. Tables 4, 5; Figs 3, 4 A, B, 5, 6, 7, 8, 9 B, C, 10 A, B, 11 A 1, A 2 Type material. Holotype • QHU R 2025027, adult male, collected from Qinglongxia, Anning City,…
View article: Figure 11 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 11 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 11 Comparison of male coloration between Trimeresurus loong sp. nov. and T. yunnanensis. A1.Trimeresurus loong sp. nov., QHU R2025028; A2.Trimeresurus loong sp. nov., QHU R2025029; B1.T. yunnanensis, QHU R2025035, from Lincang, Yunn…
View article: Figure 8 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 8 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 8 Coloration of the paratypes of Trimeresurus loong sp. nov. in life. A. Lateral view of the head; B. Dorsolateral view; C. Ventral view. A1–C1.QHU R2025028, adult male; A2–C2.QHU R2025029, subadult male; A3–C3.QHU R2025030, subadul…
View article: Figure 2 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 2 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 2 Phylogram of the genus Trimeresurus inferred from three mitochondrial (16S/cyt b/ND4) fragments. The branch support values are presented with the SH-like approximate likelihood ratio test (SH)/Ultrafast Bootstrap Approximation (UF…
View article: Figure 3 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 3 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 3 Fresh specimen of the holotype of Trimeresurus loong sp. nov. (QHU R2025027, adult male). Photographs by Y.H. Xu. Scale bars: 10 mm.
View article: Figure 6 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 6 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 6 Dorsal and ventral views of the tail of Trimeresurus loong sp. nov. A.QHU R2025027, holotype, adult male; B.QHU R2025028, paratype, adult male; C.QHU R2025029, paratype, subadult male; D.QHU R2025030, paratype, subadult male; E.QH…
View article: Figure 10 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 10 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 10 Comparison of the lateral head view of males of species in the subgenus Viridovipera in life. A.Trimeresurus loong sp. nov., QHU R2025027, holotype; B.Trimeresurus loong sp. nov., QHU R2025028, paratype; C.Trimeresurus sp. from C…
View article: Figure 7 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 7 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 7 Paratypes of Trimeresurus loong sp. nov. A. Dorsal view of the head; B. Lateral view of the head; C. Ventral view of the head; D. Lateral view of the body; E. Ventral view of the body. A1–E1.QHU R2025028, adult male; A2–E2.QHU R20…
View article: Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng 2025, sp. nov.
Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng 2025, sp. nov. Open
Trimeresurus loong Xu, Deng, Zhang, Nguyen, Poyarkov, Vogel & Peng sp. nov. Tables 4, 5; Figs 3, 4 A, B, 5, 6, 7, 8, 9 B, C, 10 A, B, 11 A 1, A 2 Type material. Holotype • QHU R 2025027, adult male, collected from Qinglongxia, Anning City,…
View article: Figure 4 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 4 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 4 Comparisons of hemipenes within the subgenus Viridovipera, showing morphological differences on sulcus side, asulcate side, and apical side of hemipenis, from left to right. A.Trimeresurus loong sp. nov., QHU R2025027, holotype; B…
View article: Figure 1 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 1 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 1 Map showing the type localities of the new species and other Trimeresurus species of the subgenus Viridovipera. Red star: Trimeresurus loong sp. nov. from Anning, Kunming, Yunnan, China; brown circle: T. cf. loong from Huili, Sich…
View article: Figure 5 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879
Figure 5 from: Xu Y, Deng J, Zhang T, Nguyen TV, Weng S, Poyarkov NA, Vogel G, Sun F, Liao C, Peng L (2025) A 'little dragon' from Kunming City: a new green pit viper from Yunnan Province, China (Squamata, Viperidae, Trimeresurus). Zoosystematics and Evolution 101(4): 2267-2293. https://doi.org/10.3897/zse.101.175879 Open
Figure 5 Coloration of the holotype of Trimeresurus loong sp. nov. in life (QHU R2025027, adult male). A. Dorsolateral view; B. Ventral view; C. Dorsal view of the head; D. Lateral view of the head; E. Ventral view of the head; F. Lateral …
View article: Figure 7 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 7 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 7 Dorsal (A) and ventral (B) views of the holotype (QHU R2025009, adult male) of Scincella tenuistriata sp. nov. in preservation. Photographs by YHX. Scale bars: 10 mm.
View article: Figure 9 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 9 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 9 Habitat of Scincella tenuistriata sp. nov. in Qixingguan District, Bijie City, Guizhou Province, China.
View article: Figure 2 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 2 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 2 Phylogenetic topology of the genus Scincella inferred from three mitochondrial (12S/16S/CO1) fragments. The nodes supporting values on branches are presented with the SH-like approximate likelihood ratio test (SH) / Ultrafast Boot…
View article: Figure 5 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 5 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 5 Dorsal (A), lateral (B), and ventral (C) views of the body; D. Ventral view of the hand; E. Ventral view of the foot of Scincella tenuistriata sp. nov. (holotype, QHU R2025009, adult male) in preservation. Photographs by YHX. Scal…
View article: Figure 3 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 3 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 3 PCA scatter plots of Scincella tenuistriata sp. nov., S. alia, and S. qianica. The shape and color indicated signify different clusters of each Scincella spp.
View article: Figure 8 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 8 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 8 Coloration of paratypes of Scincella tenuistriata sp. nov. in preservation. A. QHU R2025010, adult male; B. QHU R2025011, adult male; C. QHU R2025012, adult male. Photographs by YHX. Scale bars: 10 mm.
View article: Scincella tenuistriata Xu, Gong, Nguyen, Deng, Bragin, Weng, Zhang, Poyarkov & Peng, 2025, sp. nov.
Scincella tenuistriata Xu, Gong, Nguyen, Deng, Bragin, Weng, Zhang, Poyarkov & Peng, 2025, sp. nov. Open
Scincella tenuistriata sp. nov. Tables 4, 5, Figs 4, 5, 6, 7, 8 Type material. Holotype. • QHU R 2025009, adult male, from Qixingguan District, Bijie City, Guizhou Province, China (27.2166°N, 105.0015°E; elevation ca. 1,850 m a. s. l.) col…
View article: Figure 1 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 1 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 1 Distribution of Scincella tenuistriata sp. nov. and its closest relatives. Stars indicate the type localities, and circles indicate the other known localities. Red star: Scincella tenuistriata sp. nov.; blue star and circle: S. al…
View article: Figure 6 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382
Figure 6 from: Xu Y, Gong Z, Nguyen TV, Deng J, Bragin AM, Weng S, Zhang T, Poyarkov NA, Peng L (2025) A new species of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Guizhou Province, southwest China. ZooKeys 1258: 9-33. https://doi.org/10.3897/zookeys.1258.161382 Open
Figure 6 Dorsal (A) and ventral (B) views of the holotype (QHU R2025009, adult male) of Scincella tenuistriata sp. nov. in life in situ. Photographs by YHX.
View article: Scincella tenuistriata Xu, Gong, Nguyen, Deng, Bragin, Weng, Zhang, Poyarkov & Peng, 2025, sp. nov.
Scincella tenuistriata Xu, Gong, Nguyen, Deng, Bragin, Weng, Zhang, Poyarkov & Peng, 2025, sp. nov. Open
Scincella tenuistriata sp. nov. Tables 4, 5, Figs 4, 5, 6, 7, 8 Type material. Holotype. • QHU R 2025009, adult male, from Qixingguan District, Bijie City, Guizhou Province, China (27.2166°N, 105.0015°E; elevation ca. 1,850 m a. s. l.) col…