FIGURES 35–45. Type shells. Figs. 42–45, Anctus prolatus n in New land mollusk fauna from Serra da Capivara, Piauí, Brazil, with a new genus and five new species (Gastropoda: Orthalicoidea, Streptaxidae, Subulinidae)

FIGURES 35–45. Type shells. Figs. 42–45, Anctus prolatus n. sp. holotype MZSP 112450 (L 25.2 mm); Fig. 35, frontal view; Fig. 36, same, right view; Fig. 37, same, dorsal view; Fig. 38, same, anterior view; Fig. 39, same, apical view; Fig. 40, paratype MZSP 111826 (L 24.1 mm), apertural view; Fig. 41, same, slightly left view; Figs. 42–45, Streptartemon molaris n. sp. shell of holotype MZSP 112451 (W 8.7 mm); Fig. 42, inferior view; Fig. 43, apical view; Fig. 44, apertural view; Fig. 45, same, detail of aperture.