FIGURES 16–23. Type shells. Figs. 16–22 in New land mollusk fauna from Serra da Capivara, Piauí, Brazil, with a new genus and five new species (Gastropoda: Orthalicoidea, Streptaxidae, Subulinidae)

FIGURES 16–23. Type shells. Figs. 16–22: Cyclodontina capivara n. sp. shell of types; Fig. 16, holotype MZSP 112448, apertural view (L 19.2 mm); Fig. 17, same, right view; Fig. 18, same, dorsal view; Fig. 19, paratype MZSP 111845–1, apertural view (L 20.4 mm); Fig. 30, same, #2 (L 17.0 mm); Fig. 21, paratype MZSP 111837, young specimen, apertural view (L 6.5 mm); Fig. 22, same, detail of apex in profile (W 2.0 mm); Fig. 23, Rhinus gilbertus n. sp., holotype, detail of apex in profile (W 1.5 mm).