The information presented in the major works on Paleo-Slavonic, Media-Slavonic, Old Russian and Middle Russian historical lexicography needs constant revision, additions, and updating. The replenishment of the source database of historical dictionaries leads to the accumulation of information regarding lexicographically not described lexemes, aging of quotation material, a reinterpretation of the semantics of rare words. The section contains the linguistic, historical, cultural and symbolic description of some rare names of shells in the Church-Slavonic-Russian script: skol(ь)ka, ostreosъ, konьkha, matica zhemchuzhnaya, omidi sъsoudъ, shivada, chashulya, pin(n)a, kokhlь, kolikhiya, kolьkhiya, kon(ь)khilь, konьkhila, bagryanica etc.