Any person who, without reasonable cause, neglects to perform any of the duties required of him by the laws relating to elections or primaries and for which neglect no other punishment is provided, and any person who is guilty of fraud in the performance of any such duty, and any person who makes any unlawful alteration in any list required by law, shall be fined not more than three hundred dollars or be imprisoned not more than one year or be both fined and imprisoned. Any official who is convicted of fraud in the performance of any duty imposed upon him by any law relating to the registration or admission of electors or to the conduct of any election shall be disfranchised. Any public officer or any election official upon whom any duty is imposed by part I of chapter 147 and sections 9-308 to 9-311, inclusive, who wilfully omits or neglects to perform any such duty or does any act prohibited therein for which punishment is not otherwise provided shall be guilty of a class E felony.