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Systematics Of North American Colubrid Snakes Related To Tantilla Planiceps Blainville
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Book Synopsis Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville) by : Charles J. Cole
Download or read book Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville) written by Charles J. Cole and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville). Bulletin of the AMNH ; V. 171, Article 3 by :
Download or read book Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville). Bulletin of the AMNH ; V. 171, Article 3 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville) by : Charles J. Cole
Download or read book Systematics of North American Colubrid Snakes Related to Tantilla Planiceps (Blainville) written by Charles J. Cole and published by . This book was released on 1981 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Examination of numerous characters (primarily of head coloration, hemipenes, scutellation, and size and proportions) of more than 750 specimens suggests that Tantilla planiceps, as recognized by Tanner (1966), actually represents four distinct species: Tantilla planiceps (Blainville, 1835), of southern California and Baja California; Tantilla yaquia Smith, 1942, of southeastern Arizona and northwestern Mexico; Tantilla atriceps (Günther, 1895), of southern Texas and northeastern Mexico; and Tantilla hobartsmithi Taylor, '1936' (1937), which is broadly distributed in the southwestern United States and northern Mexico and usually has been considered synonymous with T. atriceps. Synonymies, diagnoses, descriptions, illustrations, range maps, and ecological notes are presented for each of these species. Tantilla atriceps and T. hobartsmithi are sibling species with strikingly different hemipenes. They also are the only species of the complex for which sympatry (in Coahuila) has been documented. Future collecting may well demonstrate sympatry at the periphery of the ranges of T. planiceps and T. hobartsmithi and of T. yaquia and T. hobartsmithi. Analysis of variation indicates that some classical taxonomic characters used previously (e.g., number of ventral scales) are not particularly reliable for distinguishing among species of Tantilla. The best specific characters we found are in anatomy of the hemipenes. Variation in hemipenial features usually is correlated with variation in head coloration. Because T. atriceps and T. hobartsmithi are sibling species, now known to differ consistently only in hemipenial characters, and because they exhibit sympatry at the periphery of their ranges, specific identification of females is a problem that requires additional investigation. Once it appeared that male copulatory organs would provide important, diagnostic characters for the four species formerly assigned to T. planiceps, we examined hemipenes on as many specimens (258) as were reasonably available. These included pertinent type-specimens and outgroup comparisons with T. gracilis, T. nigriceps, and T. wilcoxi; hemipenes of these species are distinctive also, and examples of all are described and illustrated (excepting T. wilcoxi). One problem that remains under investigation is the specific relationship between T. atriceps and southern populations of T. nigriceps. No such problem exists between T. hobartsmithi and T. nigriceps, however, as they differ rather consistently in hemipenes and head coloration, and they are sympatric in the western part of the range of T. nigriceps. We also examined maxillary bones, sex ratio, and karyotypes (including that of T. coronata) in addition to the characters mentioned above. Most of these data are not taxonomically useful, due either to lack of significant variation or lack of comparative data from congeners. A preferred cladogram of phylogenetic relationships of T. wilcoxi, T. planiceps, T. yaquia, T. nigriceps, T. atriceps, T. hobartsmithi, and T. gracilis is presented, as is a key to all species of Tantilla known to occur in the western United States and northern Mexico. The most useful characters for distinguishing species of Tantilla, particularly in North America, appear to be in the hemipenes and head coloration. Hereafter, all taxonomic studies within Tantilla routinely should include examination of hemipenes of the specimens examined. When possible, males should be selected as type-specimens"--P. 203.
Book Synopsis Systematics of North American Colubrid Snakes Related to Tantilla Planicops (Blainville) by : Charles J. Cole
Download or read book Systematics of North American Colubrid Snakes Related to Tantilla Planicops (Blainville) written by Charles J. Cole and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural History of the White-Inyo Range, Eastern California by : Clarence A. Hall Jr.
Download or read book Natural History of the White-Inyo Range, Eastern California written by Clarence A. Hall Jr. and published by Univ of California Press. This book was released on 2024-03-29 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1991. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived
Book Synopsis Amphibians and Reptiles of New Mexico by : William G. Degenhardt
Download or read book Amphibians and Reptiles of New Mexico written by William G. Degenhardt and published by UNM Press. This book was released on 1996 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive reference source covering the 123 species of amphibians and reptiles found in New Mexico, including over 130 color plates and 100 maps.
Book Synopsis Amphibians and Reptiles of Texas by : James Ray Dixon
Download or read book Amphibians and Reptiles of Texas written by James Ray Dixon and published by Texas A&M University Press. This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: IN THIS REVISED edition of Amphibians and Reptiles of Texas, James R. Dixon adds to and updates the extensive information given in the first edition. A new section on conservation issues highlights some of the problems facing the continued survival of amphibians and reptiles, particularly commercial collecting and habitat destruction. Taxonomic changes have been made to reflect the latest scientific information, and the extensive listing of the literature on Texas amphibians and reptiles has been updated through April, 1999. Going back to the writings of French botanist Jean Louis Berlandier, who encountered Texas herpetofauna during his travels from 1828 to 1834, this list covers more than 150 years of inquiry into the state's species and is also testimony to the distinguished careers of such herpetologists as Hobart M. Smith and, more recently, Chris McAllister. Another prominent feature of this book is the more than 150 distribution maps, which show by county the updated distribution records for all native Texas amphibians and reptiles, based on more than 13,000 county records and more than 110,000 individual localities. Professional and amateur herpetologists as well as environmentalists, wildlife specialists, campers, and hikers will find the dichotomous keys useful for identifying species at hand. This aid to identification is supported by a glossary, drawings and photographs, and complete scientific and common names.
Book Synopsis Snakes of Eastern North America by : Carl H. Ernst
Download or read book Snakes of Eastern North America written by Carl H. Ernst and published by Fairfax, Va. : George Mason University Press. This book was released on 1989 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first treatise to be published in thirty years on the 58 snakes found in eastern North America, Snakes of Eastern North America provides a current summary of the taxonomy, ecology, and behavior of each species. Selected by CHOICE as Outstanding Academic book of 1989. Table of Contents: Preface; Introduction; Identification of Snakes; Typhlopidae: Blind Snakes; Colubridae: Colubrid Snakes; Glossary of Scientific Names; Bibliography; Index
Book Synopsis The Amphibians and Reptiles of Costa Rica by : Jay M. Savage
Download or read book The Amphibians and Reptiles of Costa Rica written by Jay M. Savage and published by University of Chicago Press. This book was released on 2002-08 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: World renowned for its biological diversity and model conservation system, Costa Rica is home to a wide variety of amphibians and reptiles, from the golden toad to the scorpion lizard and the black-headed bushmaster. Jay M. Savage has studied these fascinating creatures for more than forty years, and in The Amphibians and Reptiles of Costa Rica he provides the most comprehensive, up-to-date treatment of their biology and evolution ever produced. Savage begins with detailed discussions of the natural and cultural history of Costa Rica, setting the stage for a detailed treatment of each of the 396 species of amphibians and reptiles that may be found there. Each species account synthesizes and analyzes everything that is known about the animal's anatomy, behavior, geographic distribution, systematics, and evolutionary history and provides keys for identifying amphibians and reptiles in the field. In addition to distribution maps and systematic and morphological illustrations, the book includes color photographs of almost every known species, many taken by the distinguished nature photographers Michael and Patricia Fogden. Because Costa Rica has played, and continues to play, a pivotal role in the study of tropical biology as well as in the development of ecotourism and ecoprospecting, and because more than half of the amphibians and reptiles in Costa Rica are also found elsewhere in Central America, The Amphibians and Reptiles of Costa Rica will be an essential book for a wide audience of nature lovers, naturalists, ecotourists, field biologists, conservationists, and government planners.
Book Synopsis An Ecogeographic Analysis of the Herpetofauna of the Sierra San Pedro Martir Region, Baja California by : Hartwel H. Welsh
Download or read book An Ecogeographic Analysis of the Herpetofauna of the Sierra San Pedro Martir Region, Baja California written by Hartwel H. Welsh and published by . This book was released on 1988 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology of the Reptilia by : Carl Gans
Download or read book Biology of the Reptilia written by Carl Gans and published by . This book was released on 1969 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the American Museum of Natural History by : Joel Asaph Allen
Download or read book Bulletin of the American Museum of Natural History written by Joel Asaph Allen and published by . This book was released on 1981 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology and anthropology.
Book Synopsis Research in Progress Or Completed by : American Museum of Natural History
Download or read book Research in Progress Or Completed written by American Museum of Natural History and published by . This book was released on 1974 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee Publisher : ISBN 13 : Total Pages :1016 pages Book Rating :4.3/5 (121 download)
Book Synopsis Catalogue of American Amphibians and Reptiles by : American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee
Download or read book Catalogue of American Amphibians and Reptiles written by American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee and published by . This book was released on 1963 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalogue of American Amphibians and Reptiles by : William John Riemer
Download or read book Catalogue of American Amphibians and Reptiles written by William John Riemer and published by . This book was released on 1971 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the California Academy of Sciences by : California Academy of Sciences
Download or read book Proceedings of the California Academy of Sciences written by California Academy of Sciences and published by . This book was released on 1988 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feeding Ecology and Organization of Neotropical Snake Faunas by : Robert Lee Seib
Download or read book Feeding Ecology and Organization of Neotropical Snake Faunas written by Robert Lee Seib and published by . This book was released on 1985 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: