Bolbocaffer exasperans (Péringuey, 1908) (Fig. 2A–F)

Bolboceras exasperans Péringuey 1908: 641, 643; Boucomont 1912: 9

Bolbocaffer exasperans: Krikken 1984: 41

Bolboceras matabele Péringuey 1908: 643–644; Boucomont 1912: 11 (syn. nov.) (Fig. 2G–I)