...With the onset of the heavy summer rains and the subsequent formationof breeding ponds, amphibian activity reaches a peak... 
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
... nine species (25 per cent of the entire amphibian fauna) arewidespread throughout the lowlands of México and Central America; theseare:...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...In the course of these climatic shifts,tropical environments and their amphibian inhabitants seem to havesurvived in the isthmian region...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Sincethe amphibian fauna of the Tepalcatepec Valley has been better sampledthan that of the coast, I suspect that if Gastrophryne occurred in theTepalcatepec Valley, I would have found it there...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...The classic studies of Stickel (1950) on it constitutethe most complete account of populations and movements for anyreptile or amphibian, and probably, for any vertebrate...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...” The hypothesis that the three higherVertebrate classes represent a single Amniote-stem, and that the common root ofthis stem is to be found in the amphibian class, is now generally admitted...
Ernst Haeckel 「The Evolution of Man」
...Our little two-place amphibian was flying smoothly, through airunusually good for this continent of storms...
Various 「Astounding Stories, April, 1931」
...He has big amphibian plane keptfueled and ready for long trip...
Various 「Astounding Stories of Super-Science, May, 1930」
...In the cabin of the amphibian, of course, the bellowing of the motorsoutside was muffled to a certain degree...
Various 「Astounding Stories of Super-Science, June, 1930」
...Bell had a raft of canes afloat beside the amphibian when she waked...
Various 「Astounding Stories of Super-Science, June, 1930」
...Fifty miles back, where the big amphibian hadcrashed, he was in the same air line...
Various 「Astounding Stories of Super-Science, June, 1930」
...They had left the big amphibian no earlier than nine o'clock...
Various 「Astounding Stories of Super-Science, June, 1930」
..."Good God, an amphibian city!" Hackett was shaken, white-faced...
Various 「Astounding Stories of Super-Science, August 1930」
...o the Ralas have ruled from this impregnable amphibian city...
Various 「Astounding Stories of Super-Science, August 1930」
..."You know that amphibian city is almost impregnable because humans canhardly live long enough under the water to get into it, let alonefight under water as the frog-men can...
Various 「Astounding Stories of Super-Science, August 1930」
...TheMaster bought only amphibian planes of late...
Various 「Astounding Stories of Super-Science, August 1930」
...It will carry a big amphibian plane, so be equipped toassemble and launch it...
Sterner St. Paul Meek 「The Solar Magnet」
...A huge amphibian plane was hoisted in sectionsfrom the hold and mechanics started to assemble it...
Sterner St. Paul Meek 「The Solar Magnet」
... half an hour the amphibian rose from the water...
Sterner St. Paul Meek 「The Solar Magnet」
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