A NEW GREGGELIX (MOLLUSCA: PULMONATA: HELMINTHOGLYPTIDAE FROM BAJA CALIFORNIA SUR, MEXICOMILLER WB.1981; PROC. BIOL. SOC. WASH.; ISSN 0006-324X; USA; DA. 1981; VOL. 94; NO 3; PP. 731-738; BIBL. 7 REF.Article

A NEW HUMBOLDTIANA (PULMONATA: HELMINTHOGLYPTIDAE) FROM NORTHWESTERN COAHUILA, MEXICOMETCALF AL.1983; NAUTILUS; ISSN 0028-1344; USA; DA. 1983; VOL. 97; NO 2; PP. 69-72; BIBL. 5 REF.Article

A NEW SUBGENUS AND A NEW SPECIES OF GREGGELIX (GASTROPODA: SIGMURETHRA: HELMINTHOGLYPTIDAE) FROM THE SIERRA SAN PEDRO MARTIR, BAJA CALIFORNIA, MEXICOMILLER WB.1982; VELIGER; ISSN 0042-3211; USA; DA. 1982; VOL. 24; NO 4; PP. 345-348; 1 P.; BIBL. 1 REF.Article

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Lysinoe (Gastropoda: Pulmonata) and other land smails from Eocene-Oligocene of Trans-Pecos Texas, and their paleoclimatic significance = Lysinoe (Gastropoda: Pulmonata) et d'autres gastropodes continentaux de l'Eocène-Oligocène de Trans-Pecos Texas et leur signification paléoclimatiqueROTH, B.The Veliger. 1984, Vol 27, Num 2, pp 200-218, issn 0042-3211Article

Three species of Sonorella (Gastropoda: Pulmonata: Helminthoglyptidae) from ArizonaMILLER, W. B.Proceedings of the Biological Society of Washington. 1984, Vol 97, Num 4, pp 681-687, issn 0006-324XArticle

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Observations on the range and natural history of Monadenia setosa (Gastropoda: Pulmonata) in the Klamath mountains, California, and the taxonomy of some related speciesROTH, B; PRESSLEY, P. H.The Veliger. 1986, Vol 29, Num 2, pp 169-182, issn 0042-3211Article

Four additional species of Sonorella (gastropoda: pulmonata: helminthoglyptidae) from Sonora, MexicoNARANJO-GARCIA, E.The Veliger. 1989, Vol 32, Num 1, pp 84-90, issn 0042-3211Article