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Crotalus willardi silus Klauber 1949
urn:lsid:organismnames.com:name:2949019
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Crotalus willardi silus Klauber 1949
Klauber 1949. Some new and revived subspecies of Rattle-snakes. Trans San Diego Soc. nat. Hint., 11(6) 1949: pp. 61-116