Acicula bakanense Steklov, 1966 † accepted as Acicula parcelineata (Clessin, 1911) (original description)
Caracollina fraudulosa Steklov, 1966 † accepted as Apula fraudulosa (Steklov, 1966) † (original description)
Carychium marinae Steklov, 1966 † accepted as Carychiella marinae (Steklov, 1966) † (original description)
Carychium plicatum Steklov, 1966 † accepted as Carychium pachychilus F. Sandberger, 1872 † (original description)
Carychium starobogatovi Steklov, 1966 † (original description)
Caspicyclotus praesieversi Steklov, 1966 † accepted as Caspicyclotus sieversi (L. Pfeiffer, 1871) (original description)
Caucasotachea andrussovi Steklov, 1966 † (original description)
Caucasotachea fortangensis Steklov, 1966 † (original description)
Caucasotachea kubanica Steklov, 1966 † (original description)
Caucasotachea maslovae Steklov, 1966 † (original description)
Chondrula (Chondrula) licharevi Steklov, 1962 † accepted as Chondrula licharevi Steklov, 1962 † (additional source)
Chondrula (Chondrula) microtraga (Rossmässler, 1839) accepted as Chondrula microtragus (Rossmässler, 1839) (basis of record)
Chondrula (Chondrula) microtraga psedachica Steklov, 1964 † accepted as Chondrula microtragus psedachica Steklov, 1964 † (basis of record)
Chondrula (Chondrula) microtraga sunzhica Steklov, 1962 † accepted as Chondrula sunzhica Steklov, 1962 † (basis of record)
Chondrula (Chondrula) tchetchenica Steklov, 1962 † accepted as Chondrula tchetchenica Steklov, 1962 † (basis of record)
Chondrula (Mastus) H. Beck, 1837 accepted as Mastus H. Beck, 1837 (basis of record)
Chondrula (Mastus) caucasica (L. Pfeiffer, 1852) accepted as Mastus caucasicus (L. Pfeiffer, 1852) (basis of record)
Chondrula (Mastus) caucasica strigata Steklov, 1966 † accepted as Mastus caucasicus strigatus (Steklov, 1966) † (original description)
Chondrula (Mastus) forcarti Steklov, 1966 † accepted as Mastus forcarti (Steklov, 1966) † (original description)
Chondrula (Mastus) minima Steklov, 1966 † accepted as Mastus minimus (Steklov, 1966) † (original description)
Chondrus pusanovi Steklov, 1966 † (original description)
Daudebardia (Daudebardia) fragilis Steklov, 1966 † represented as Daudebardia fragilis Steklov, 1966 † (original description)
Daudebardia (Daudebardia) praelederi Steklov, 1966 † represented as Daudebardia praelederi Steklov, 1966 † (original description)
Euxinophaedusa steklovi I. M. Likharev, 1962 † (basis of record)
Euxinophaedusa volkovae I. M. Likharev, 1962 † (basis of record)
Gastrocopta (Albinula) ukrainica Steklov, 1966 † represented as Gastrocopta ukrainica Steklov, 1966 † (original description)
Gastrocopta (Albinula) zamankulense Steklov, 1966 † accepted as Gastrocopta zamankulensis Steklov, 1966 † (original description)
Gastrocopta (Sinalbinula) calumniosa Steklov, 1966 † represented as Gastrocopta calumniosa Steklov, 1966 † (original description)
Gastrocopta (Sinalbinula) farcimen (F. Sandberger, 1872) † represented as Gastrocopta farcimen (F. Sandberger, 1872) † (basis of record)
Gastrocopta (Sinalbinula) pseudotheeli Steklov, 1966 † represented as Gastrocopta pseudotheeli Steklov, 1966 † (original description)
Gastrocopta (Vertigopsis) magna Steklov, 1966 † represented as Gastrocopta magna Steklov, 1966 † (original description)
Helicella libidinosa Steklov, 1966 † (original description)
Helicella sunzhica Steklov, 1966 † (original description)
Helix maeotica Steklov, 1966 † (original description)
Laeviphaedusa miocaenica I. M. Likharev & Steklov, 1965 † (basis of record)
Microstele alamellata Steklov, 1966 † (original description)
Microstele buryaki Steklov, 1966 † (original description)
Microstele caucasica Steklov, 1966 † (original description)
Monacha externa Steklov, 1966 † (original description)
Monacha praeorientalis Steklov, 1966 † (original description)
Oxychilus steklovi A. Riedel, 1963 † (additional source)
Pontophaedusa praefuniculum I. M. Likharev, 1962 † (basis of record)
Pupilla belokrysi Steklov, 1966 † (original description)
Pupilla mutabilis Steklov, 1966 † (original description)
Pupilla signataeformis Steklov, 1966 † (original description)
Pupilla triplicatoidea Steklov, 1966 † (original description)
Pupilorcula Steklov, 1966 † (original description)
Pupilorcula karaganica Steklov, 1966 † (original description)
Quadriplicata farsica I. M. Likharev & Steklov, 1965 † (basis of record)
Quadriplicata intermedia I. M. Likharev, 1962 † (basis of record)
Retowskia matyokini Steklov, 1962 † (basis of record)
Retowskia schlaeflii pliocenica Steklov, 1962 † (basis of record)
Serrulina (Pravispira) nazranica I. M. Likharev, 1962 † accepted as Pravispira nazranica (I. M. Likharev, 1962) † (basis of record)
Strobilops (Eostrobilops) caucasica Steklov, 1961 † accepted as Eostrobilops caucasicus (Steklov, 1961) † (basis of record)
Strobilops (Strobilops) ukrainica Steklov, 1966 † accepted as Strobilops ukrainicus Steklov, 1966 † (original description)
Tropidomphalus (Pseudochloritis) fortangensis Steklov, 1966 † (original description)
Tropidomphalus (Pseudochloritis) psedachicus Steklov, 1966 † (original description)
Truncatellina dentata Steklov, 1966 † (original description)
Vitrea proangystropha A. Riedel, 1963 † (additional source)
Vitrinoxychilus praecursor A. Riedel, 1963 † (additional source)
Zebrina gumsiana Steklov, 1966 † (original description)
Zootecus insularis caucasicus Steklov, 1966 † (original description)