@article {3911, title = {Second contribution to our knowledge of the varieties of the wall lizard (Lacerta muralis).}, journal = {Transactions of the Zoological Society of LondonTransactions of the Zoological Society of London}, volume = {20}, year = {1913}, pages = {135-230.}, keywords = {Reptilia}, author = {Boulenger, G. A.} } @article {3912, title = {On the lizards allied to Lacerta muralis with an account of Lacerta agilis and Lacerta parva.}, journal = {Transactions of the Zoological Society of LondonTransactions of the Zoological Society of London}, volume = {21}, year = {1916}, pages = {1-104.}, keywords = {Reptilia}, author = {Boulenger, G. A.} }