The term arvicola amphibius is identified in base64 scheme by the sequence YXJ2aWNvbGEgYW1waGliaXVz, while the MD5 signature is equal to 44f2fce3427d9dc19f11c5439f41278b. The ASCII encoding of arvicola amphibius in hexadecimal notation is 61727669636f6c6120616d70686962697573.