Taylor (1952) synonymized _Engystomops_ with _Eupemphix_ which, although related, should be regarded as generically distinct (Gallardo, 1965). [Please select]
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Milstead, Mecham and McClintock (1950) synonymized _gaigeae_ and _marnockii_ because they were unable to verify the characters Wright and Wright (1949) used to separate them. [Please select]
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Specimens seem referable to subspecies _pinicola_, recently synonymized by the A. [Please select]
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Whether or not _fuscatus_ is synonymized under _panamensis_, the holotype of _panamensis_ is an intergrade between the almost black Colombian animal (_fuscatus_) and the paler individuals in Central America and territory north thereof. [Please select]
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] Aside from the skeleton referred to as _Smilisca daulinia_ by Cope (1865:194), we have examined each of the types of the species synonymized with _S. [Please select]
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