Cope, Edward Drinker, 1863, On Trachycephalu s, Scaphiopus and other Batrachia

Cope, Edward Drinker, 1863, On Trachycephalu s, Scaphiopus and other Batrachia, Proceedings of the Academy of Natural Sciences of Philadelphia 15, pp. 43-54

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urn:lsid:zoobank.org:pub:FA93B88B0E024616BD527F5AAC814697

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