Head drawings: genus Opisthotropis(Serpentes: Colubridae) - compiled by Van Wallach Home

Opisthotropis andersonii (from Pope 1935)
Opisthotropis andersonii (from Zhao & al. 1998)
Opisthotropis andersonii (from Wang & al. 2017)
Opisthotropis andersonii (from Boulenger 1893)
Opisthotropis andersonii (from Boulenger 1893)
Opisthotropis andersonii (from Wang & al. 2017)
Opisthotropis andersonii (from Boulenger 1893)
Opisthotropis cheni (from Ren & al. 2019)
Opisthotropis cucae (from Ren & al. 2019)
Opisthotropis daovantieni (from Orlov & al. 1998)
Opisthotropis guangxiensis (from Ren & al. 2019)
Opisthotropis guangxiensis (from Zhao & Jiang 1978)
Opisthotropis guangxiensis (from Zhao & al. 1998)
Opisthotropis guangxiensis (from Huang & al. 1978B)
Opisthotropis haihaensis (from Wang & al. 2020)
Opisthotropis hungtai (from Wang & al. 2020)
Opisthotropis jacobi (from Angel & Bourret 1933)
Opisthotropis jacobi (from Ziegler & al. 2018)
Opisthotropis kikuzatoi (from Matsui & Mori 2021)
Opisthotropis kikuzatoi (from Tahara & al. 2024)
Opisthotropis kuatunensis (from Ding & Zheng 1974)
Opisthotropis kuatunensis (from Huang & al. 1998)
Opisthotropis kuatunensis (from Pope 1929)
Opisthotropis kuatunensis (from Pope 1935)
Opisthotropis kuatunensis (from Zhao & al. 1998)
Opisthotropis lateralis (from Fan 1931)
Opisthotropis lateralis (from Pope 1935)
Opisthotropis lateralis (from Wu & al. 1985)
Opisthotropis latouchii (from Chen 1991)
Opisthotropis latouchii (from Ding & Zheng 1974)
Opisthotropis latouchii (from Huang & al. 1998)
Opisthotropis latouchii (from Shen & al. 2014)
Opisthotropis latouchii (from Zhao & al. 1998)
Opisthotropis maculosa (from Stuart & Chuaynkern 2007)
Opisthotropis maxwelli (from Ding & Zheng 1974)
Opisthotropis maxwelli (from Wang & al. 2017)
Opisthotropis shenzhenensis (from Ren & al. 2019)
Opisthotropis shenzhenensis (from Wang & al. 2017)
Opisthotropis spenceri (from Chuaynkern & al. 2014)
Opisthotropis spenceri (from Smith 1943)
Opisthotropis tamdaoensis (from Ziegler & al. 2008)
Opisthotropis tamdaoensis (from Ziegler & al. 2008)
Opisthotropis tamdaoensis (from Ziegler & al. 2017)
Opisthotropis typica (from Weinell & al. 2019)
Opisthotropis voquyi (from Ziegler & al. 2018)
Opisthotropis voquyi (from Ziegler & al. 2018)