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Post by Melanie on Dec 15, 2014 22:03:43 GMT
Pyrgulopsis brandi (Drake 1953) Amnicola brandi Drake 1953; Jour. Wash. Acad. Sci. 43:27; figs. 1–6.- Taylor 1975; Pap. Paleo. Mus. Paleo. Univ. Mich. 10:44. Pyrgulopsis brandi (Drake). Hershler 1994; Smiths. Contrib. Zool., (554):22–23; figs. 4e (female anatomy), 9g (shell), 9h-i (operculum), 33b (radula), 44b (penis). Type Locality.—Springs at Las Palomas, Chihuahua, México. Holotype USNM 601494. Distribution.—Known only from the type locality. Presumed to be extinct due to drying up of springs at the type locality.
Source: AN ANNOTATED CHECKLIST AND BIBLIOGRAPHY OF THE LAND AND FRESHWATER SNAILS OF MÉXICO AND CENTRAL AMERICA Fred G. Thompson
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