Vitaly Varivoda said the Tagansky Court had failed to give reasons for its ruling last Thursday, adding that he would file an extended appeal to Moscow City Court as soon as he received the full text of the verdict.
The National Bolsheviks, led by controversial writer Eduard Limonov, claim a total of about 15,000 members. Outspoken critics of the present government, they have repeatedly been denied official registration as a political party.
Party spokesman Alexander Averin said the Justice Ministry's decision in January to deny the party registration was the fifth such decision since 1998, and was due to the party's program on protecting ethnic Russians abroad.
A Federal Registration Service source said the party had failed to achieve a quorum at its constitutive assembly, and that its regional groupings included people aged under 18, which is illegal. The source said the party discriminated on the basis of ethnicity, which was also illegal.
