Thompson, F. G.; Mejia, O. (2006). Two new land snails of the genus Humboldtiana (Gastropoda: Pulmonata: Humboldtianidae) from Chihuahua, Mexico. The Nautilus. 120: 25-29.
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Thompson, F. G.; Mejia, O.
2006
Two new land snails of the genus <i>Humboldtiana</i> (Gastropoda: Pulmonata: Humboldtianidae) from Chihuahua, Mexico