...Comments on the taxonomy and geographic distribution of some North American rabbits... 
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...We tentatively apply the subspecies name fuscus to ourNicaraguan bats on geographic grounds; one of us (Smith) currently isinvestigating geographic variation in the genus Pteronotus...
J. Knox Jones 「Noteworthy Records of Bats From Nicaragua, with a Checklist of the Chiropteran Fauna of the Country」
...Paradiso (1967) reviewed geographic variation in this unique bat, thetype locality of which was restricted to Realejo, Chinandega,Nicaragua, by Goodwin (1946:327)...
J. Knox Jones 「Noteworthy Records of Bats From Nicaragua, with a Checklist of the Chiropteran Fauna of the Country」
...tumida, as defined by Goodwin(1958); we are not wholly convinced that these are valid species(rather than variable geographic races of the same species)...
J. Knox Jones 「Noteworthy Records of Bats From Nicaragua, with a Checklist of the Chiropteran Fauna of the Country」
...The maps herewith and listings of marginal localities are themeans chosen to present the information on geographic distribution...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...Despitethis fault of the key to the lagomorphs, it, and the accompanyingaccount, I hope, will aid workers who need to identify kinds oflagomorphs and to know about their geographic distribution...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...Faunal relationships and geographic distribution of mammals inOklahoma...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...Comments on the taxonomy and geographic distribution of someNorth American rabbits...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...—For the purposes of analyzing geographic variationin size and proportions, measurements were taken on ten adult males fromeach of five samples throughout the range of the species...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...There is a geographic gradientin size; specimens from the western part of the range (southern Costa Rica)are smaller than those from the eastern part of the range (eastern Panamá)...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Thedata are insufficient to determine geographic variation in the calls and to determineif differences in the calls are enhanced in areas of sympatry as comparedwith the allopatric parts of the ranges...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Variations of this kind are spoken of as geographic, racial, or subspecificand the birds exhibiting them are termed subspecies...
Frank M. Chapman 「Color Key to North American Birds」
...Restriction in dispersal due to geographic isolation has probably hindered gene flow, thus allowing rapid local adaptation, recognizable in variation at the infraspecific level...
Emil K. Urban 「Birds from Coahuila, Mexico」
...minor (Brehm), on geographic grounds, probably nestedhere, but five other subspecies have been recorded in the State andany one of these might have undertaken the aberrant breeding...
Richard F. Johnston 「The Breeding Birds of Kansas」
...californicus (Lesson), on geographic grounds...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
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