common rough-sided snake wrapped around the finger

aspidura black closeup coldblooded common conservation crawling creature dalawa detail ecology endemic environment exotic finger ground harmless head herpetology highlands horton jungle lanka madilla medilla national natural nocturnal non nonvenomous park pattern plains poisonous predator reptile roaming rough roughsided skin slither slithering small snake snakeskin species sri tail texture tiny trachyprocta venomous wild wilderness wildlife wrapped