Reference

Sumaithangi R. Chandramouli (2021): On a poorly-known, insular endemic pit-viper Trimeresurus labialis Fitzinger in: Steindachner, 1867 from the Nicobar Islands (Reptilia, Viperidae, Crotalinae) – Spixiana, Zeitschrift für Zoologie – 44: 55 - 61.