'New' UK snake species identified

August 9, 2017

It's been here all along, but scientists have this week revealed that we have a second species of grass snake in the UK.

 

The newly identified Barred Grass Snake (Natrix helvetica) has the familiar collar marking around the neck but in black rather than yellow, and the overall colouring of the snake's body is more grey-brown with distinctive black stripe marks.

 

The Common Grass Snake (Natrix natrix) has a yellow collar with a greener body, and stripe marks that are barely visible.

 

It has to be said that the two snakes do look very different, but such variations (phenotypes) in a single species are common in