Search Results - "Petrunkevitch, A"

Studies of chimpanzee vision by Ladygin-Kohts by Yerkes, R. M, Petrunkevitch, A

“…Using the method of choice from samples, Kohts has demonstrated that the chimpanzee can pick out colors to match samples but is not so clever in matching…”
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August Weismann

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August Weismann: Personal Reminiscences by PETRUNKEVITCH, ALEXANDER

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Trigonotarbus arnoldi, a New Species of Fossil Arachnid from Southern France by Petrunkevitch, Alexander

“…Trigonotarbus arnoldi, n. sp., is described from the Carboniferous of southern France and compared with T. johnsoni Pocock, type species of the genus. The…”
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Striated Muscles of an Amber Insect by PETRUNKEVITCH, ALEXANDER

“…IT is well known that arthropods found in Baltic amber are unusually well preserved, so that even the minutest features of their chitinous structures are…”
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The Spider Fauna of Panama and Its Central American Affiliation by Petrunkevitch, Alexander

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The Value of Instinct as a Taxonomic Character in Spiders by Petrunkevitch, Alexander

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Standardized Microphotography Second Contribution: The Object Factor by Petrunkevitch, Alexander

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The Shape of the Sternum in Scorpions as a Systematic and a Phylogenetic Character by Petrunkevitch, Alexander

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Courtship in Dysdera Crocata by Petrunkevitch, Alexander

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Intraspecific Biological Groups of Acipenserines and Their Reproduction in the Lower Regions of Rivers with Regulated Flow by Gerbilskii, N. L., Petrunkevitch, A.

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Eohelea stridulans, n. gen., n. sp., a Striking Example of Paramorphism in an Amber Biting-Midge by Petrunkevitch, Alexander

“…A stridulating apparatus at the extreme end of both wings distinguishes the new species from all other known living and fossil Diptera, and must be considered…”
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Natural and Artificial Parthenogenesis by Petrunkevitch, Alexander

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