S armatigibbula nefas (Kolesnikov, 1931) †

= Trochus nefas var. jusmakensis Kolesnikov, 1931

= Trochus nefas var. pressus Zhizhchenko, 1936

= Trochus nefas var. pseudopodolicus Kolesnikov, 1931

= Trochus nefas var. tarchanensis Kolesnikov, 1931

Middle Miocene (Tarkhanian, Chokrakian): Eastern Paratethys (Russia).

(Kolesnikov 1931; Zhizhchenko 1936; Iljina 1993)