[PDF] Check List Of North Amer Amphi eBook

Author : Edward D. Cope
Publisher : BoD – Books on Demand
Page : 1106 pages
File Size : 46,8 MB
Release : 2024-07-31
Category : Fiction
ISBN : 3385540631

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Reprint of the original, first published in 1875.

Author : David Thomas Drumm
Publisher :
Page : 308 pages
File Size : 24,34 MB
Release : 2016
Category : Marine animals
ISBN :

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A current and comprehensive species list of marine invertebrates of Alaska is essential for effective management of living marine resources, sustainable fisheries, conservation of vulnerable ecosystems, and advancement of our knowledge of biodiversity and ecosystem function. Furthermore, the most current checklist available to resource managers and scientists is quite dated and limited in that it only includes the marine invertebrates of the southern coast of Alaska to California. Since that checklist was published, many new species have been described, many range extensions have been discovered, and considerable changes in higher-level systematics have been made. The checklist that we have compiled lists 3708 species and presents for each species the currently accepted scientific name and its significant synonyms, common names, type localities, geographic and depth distributions, a general statement of abundance in Alaska when known (e.g., rare, uncommon, common, abundant), and general remarks. It includes species recorded in the marine waters of Alaska from the intertidal zone, continental shelf, and upper continental slope to abyssal depths, from the Beaufort Sea at the Arctic border with Yukon, Canada; the eastern Chukchi Sea, the eastern Bering Sea, the Aleutian Islands to the western border with Russia; and the Gulf of Alaska to Dixon Entrance at the southern border with British Columbia. Sound and reliable taxonomic identifications are necessary to monitor and predict changes in the distribution and abundance of marine species. The current status and future direction of the study of Alaskan marine invertebrate biodiversity are briefly discussed.

Author : Henry Sherring Pratt
Publisher :
Page : 454 pages
File Size : 34,85 MB
Release : 1923
Category : Animals
ISBN :

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The naturalist frequently finds that to learn to identify species is a most difficult task, and yet nothing is more important to his work. He finds that species are not separated merely on shape and colour, but on structural peculiarities which frequently are connected with particular habits. This is especially the case in vertebrate animals, which in Great Britain, with its very limited number of forms, may be identified in a haphazard manner by elimination. This is impossible in a country where different climatic areas interdigitate and where there are many species, as the United States, which for the purpose of the naturalist is a continent. Here Prof. H. S. Pratt ?fills the bill ?by his ?Vertebrate Animals of the United States,? which, however, omits birds. A short account of each group is given, the anatomical features dividing it up into sub-groups and families being usually illustrated. Where neces-sary, special features for families are described and then follow keys to the genera, descriptions of the same and keys to their species. The whole closes with a good bibliography and a glossary of technical terms. The short descriptions of each species, with mention of their geographical distributions and habitats, are excellent, and the tabulation of the sub-species most useful. We learn that there are about 600 species of freshwater fishes, 70 of newts and 61 of frogs and toads we are given a key by which their tadpoles and eggs can be identified-300 reptiles and a wide series of mammals belonging to 9 orders. We characterise this publication as a book for ready reference, such as should be on the shelves of all American naturalists.

Author :
Publisher :
Page : 1032 pages
File Size : 46,56 MB
Release : 1924
Category : Science
ISBN :

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Vols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.

Author : J. Ralph Lichtenfels
Publisher :
Page : 244 pages
File Size : 40,50 MB
Release : 1978
Category : Parasites
ISBN :

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Checklist of over 70,000 type specimens of parasites currently available to qualified research workers through the world. Entries are arranged alphabetically by species under phyla. Each entry gives species name, author, year of original description (located in Index-catalogue of medical and veterinary zoology), genera, kind of type, and collection number. Genera index.