Results 121 to 130 of about 231 (156)
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Global diversity of crayfish (Astacidae, Cambaridae, and Parastacidae––Decapoda) in freshwater
Hydrobiologia, 2007The freshwater crayfishes are distributed across all but the Indian and Antarctic continents with centers of diversity in the southeastern Appalachian Mountains in the Northern Hemisphere and in south-east Australia in the Southern Hemisphere. There are currently over 640 described species of freshwater crayfishes with an average of 5–10 species still ...
Keith A Crandall +2 more
exaly +2 more sources
The Genus Cambarus in Louisiana (Decapoda, Astacidae)
American Midland Naturalist, 1959George Henry Penn, Guy Marlow
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The Genus Procambarus in Louisiana (Decapoda, Astacidae)
American Midland Naturalist, 1956exaly +2 more sources
The Genus Cambarellus in Louisiana (Decapoda, Astacidae)
American Midland Naturalist, 1950exaly +2 more sources
Journal of Crustacean Biology, 2023
AbstractCrayfishes are rather rare in the fossil record, limiting our understanding of their evolutionary history. We describe and discuss a fossil crayfish from the Miocene of Slovenia. This fossil, comprising only the cephalothorax, first pereiopod, and another cheliped, seems closely allied to AustropotamobiusSkorikov, 1907, but also bears an ...
Gašparič, Rok +5 more
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AbstractCrayfishes are rather rare in the fossil record, limiting our understanding of their evolutionary history. We describe and discuss a fossil crayfish from the Miocene of Slovenia. This fossil, comprising only the cephalothorax, first pereiopod, and another cheliped, seems closely allied to AustropotamobiusSkorikov, 1907, but also bears an ...
Gašparič, Rok +5 more
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“Crustacea”: Decapoda – Astacida
2015Thomas Henry Huxley, now often remembered as “Darwin’s bulldog”, wrote an entire book dedicated to crayfish, with no less a goal than showing how the study of crayfish could teach the reader all of zoology: “how the careful study of one of the commonest and most insignificant of animals, leads us, step by step, from every-day knowledge to the widest ...
Steffen Harzsch +2 more
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2023
The Austropotamobius and Astacus genera from the Astacina subfamily and their smaller taxons from their reservation, the Neweuxin basin, immigrated to rivers in six groups. Depending on the degree of adaptation to salinity, getting over integrating ten vironment resistance??, they penetrated to the regions of modern inhabitance of their ta xons and ...
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The Austropotamobius and Astacus genera from the Astacina subfamily and their smaller taxons from their reservation, the Neweuxin basin, immigrated to rivers in six groups. Depending on the degree of adaptation to salinity, getting over integrating ten vironment resistance??, they penetrated to the regions of modern inhabitance of their ta xons and ...
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2023
On the basis of modern concepts on classification of the family Astacidae its characteristic and key are given. By means of the key all the family's taxons presented in the Crustacea fauna of the USSR can be determined. It is recommended to develop researches on studying the composition of the Crustacea fauna in different geographical zones and regions
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On the basis of modern concepts on classification of the family Astacidae its characteristic and key are given. By means of the key all the family's taxons presented in the Crustacea fauna of the USSR can be determined. It is recommended to develop researches on studying the composition of the Crustacea fauna in different geographical zones and regions
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The Genus Orconectes in Louisiana (Decapoda, Astacidae)
American Midland Naturalist, 1952This is the second of a series of four papers on the crawfishes of Louisiana; the first, on the genus Cambarellus, appeared in this journal (Penn, 1950b), wlhich see for introductory reimiarks. Many of the specimens on which these studies are based liave since bcen placed in other collections.
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The setae of Austropotamobius pallipes (Crustacea: Astacidae)
Journal of Zoology, 1970The author presents here the results of an introductory study into the setal armature of the British species of crayfish, Austropotamobius pallipes (Lereboullet, 1858). Using an ordinary optical microscope, it is demonstrated that a considerable variety of setae exist on the body and appendages of A. pallipes.
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