Revised key to the Indian species of Rhinophis This is an updated version of the key presented by Sampaio et al. (2020), revised with the addition of new information on phenotypic variation in R. fergusonianus. All six species are endemic to peninsular India and are the only members of this genus known to occur in India. 1 Number of dorsal scale rows slightly behind midbody 17...................................................... 2 - Number of dorsal scale rows slightly behind midbody 15...................................................... 3 2 Ventral shields fewer than 160............................................................... R. travancoricus - Ventral shields more than 180.................................................................... R. goweri 3 Ventral shields> 215...................................................................... R. melanoleucus - Ventral shields 700 m elevation........................... 5 5 venter background colour bright red in life (paler, more orange-yellow in smaller specimens)............... R. sanguineus - venter whitish (to pale orange anteriorly and posteriorly) with dark markings......................... R. karinthandani

Published as part of Gower, David J., Narayanan, Surya, Deepak, V., Anvar, Muhammed & Das, Sandeep, 2023, Rediscovery and systematics of Rhinophis fergusonianus Boulenger, 1896 (Serpentes: Uropeltidae) from India's Western Ghats, pp. 74-92 in Zootaxa 5374 (1) on page 86, DOI: 10.11646/zootaxa.5374.1.4, http://zenodo.org/record/10144986