Pseudoxychona dulcis (Ihering, 1912) | 
Pseudoxychona pileiformis (Moricand, 1836) | 
Pseudoxychona polytricha (Ihering, 1912) |
Pseudoxychona sp. 105500 | 
Pseudoxychona sp. 204356 | 
Pseudoxychona spiritualis (Ihering, 1912) |
Rabdotus abbreviatus (J. G. Cooper, 1892) | 
Rabdotus alternatus alternatus (Say, 1830) | 
Rabdotus alternatus mariae (Albers, 1850) |
Rabdotus artemisia (W. G. Binney, 1861) | 
Rabdotus baileyi (Dall, 1893) | 
Rabdotus chamberlini (G. D. Hanna, 1923) |
Rabdotus dealbatus (Say, 1821) | 
Rabdotus dealbatus ozarkensis (Pilsbry & Ferriss, 1903) | 
Rabdotus inscendens (W. G. Binney, 1861) |
Rabdotus levis (Dall, 1893) | 
Rabdotus mooreanus (L. Pfeiffer, 1868) | 
Rabdotus ramentosus (J. G. Cooper, 1892) |
Rabdotus schiedeanus (L. Pfeiffer, 1841) | 
Rabdotus schiedeanus pecosensis (Pilsbry & Ferriss, 1897) | 
Rabdotus slevini (Hanna, 1923) |
Rabdotus sp. 151634� | 
Rabdotus sufflatus (A. Gould, 1859) | 
Rabdotus vegetus (A. Gould, 1853) |
Sanniostracus aff. obliquus (Reeve, 1849) | 
Sanniostracus carnavalescus (Simone & Salvador, 2016) | 
Sanniostracus cf. obliquus (Reeve, 1849) |
Sanniostracus obliquus (Reeve, 1849) | 
Sanniostracus poecilogramma (Ancey, 1901) | 
Scutalus baroni (Fulton, 1896) |
Scutalus cf. cretaceus (L. Pfeiffer, 1855) | 
Scutalus cf. quechuarum (Crawford, 1939) | 
Scutalus chiletensis chiletensis Weyrauch, 1967 |
Scutalus chiletensis granulatus Weyrauch, 1967 | 
Scutalus coraeformis (Pilsbry, 1897) | 
Scutalus cretaceus (L. Pfeiffer, 1855) |
Scutalus mariopenai Breure & Mogoll�n, 2010 | 
Scutalus mutabilis (Broderip, 1832) | 
Scutalus mutabilis albo (Broderip, 1832) |
Scutalus nivalis (A. d�Orbigny, 1835) | 
Scutalus pilosus Weyrauch, 1967 | 
Scutalus proteus (Broderip, 1832) |
Scutalus punctilineatus (F. Haas, 1951) | 
Scutalus quechuarum (Crawford, 1939) | 
Scutalus steerei (Pilsbry, 1900) |
Scutalus versicolor (Broderip, 1832) | 
Scutalus versicolor chenui (R. A. Philippi, 1867) | 
Scutalus versicolor lachayensis Weyrauch, 1967 |
Sphaeroconcha araozi (Weyrauch, 1956) | 
Stapafurdius costiferus Simone, 2021 | 
Stapafurdius glaber Simone, 2021 |
Stenostylus colmeiroi (Hidalgo, 1872) | 
Stenostylus zilchi Weyrauch, 1956 | |
