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Sistrurus Tergeminus Edwardsii
''Sistrurus tergeminus edwardsii'', also known as the desert massasauga, is a subspecies of venomous pit viper in the family Viperidae. The subspecies is endemic to the Southwestern United States and northern Mexico. In places, its range overlaps that of '' S. t. tergeminus'', and intergrading of the two subspecies is known. Etymology The subspecific name, ''edwardsii'', is in honor of Colonel Dr. Lewis A. Edwards (1824–1877), a U.S. Army surgeon, who collected the type specimen.Baird & Girard (1853). Common names include desert massasauga, Conant R (1975). ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition''. (First Edition published in 1958). Boston: Houghton Mifflin Company. xviii + 429 pp + 48 plates. (hardcover), (paperback). Edward's massasauga, Wright AH, Wright AA (1957). ''Handbook of Snakes of the United States and Canada''. Ithaca and London: Comstock Publishing Associates, a Division of Cornell University Pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sistrurus Tergeminus
''Sistrurus tergeminus'', also known as the western massasauga, is a rattlesnake found in the southwestern plains of the United States and northern Mexico. Like all rattlesnakes, it is a pit viper and is venomous. Taxonomy It was once considered a subspecies of the eastern massasauga (''Sistrurus catenatus''). It contains two subspecies: the nominate ''S. t. tergeminus,'' or plains massasauga'','' found in the Great Plains, and '' S. t. edwardsii'', or desert massasauga, found in the deserts of the Southwestern United States and northern Mexico. The latter is considered ''"Vulnerable"'' by NatureServe. According to Campbell and Lamar (2004), a population also exists in southeastern Colorado that is morphologically somewhat intermediate between ''S. t. tergeminus'' and ''S. t. edwardsii''.Campbell JA, Lamar WW. (2004). ''The Venomous Reptiles of the Western Hemisphere''. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. . Description Adults range in siz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spencer Fullerton Baird
Spencer Fullerton Baird (; February 3, 1823 – August 19, 1887) was an American naturalist, ornithologist, ichthyologist, herpetologist, and museum curator. Baird was the first curator to be named at the Smithsonian Institution. He eventually served as assistant Secretary of the Smithsonian from 1850 to 1878, and as Secretary from 1878 until 1887. He was dedicated to expanding the natural history collections of the Smithsonian which he increased from 6,000 specimens in 1850 to over 2 million by the time of his death. He published over 1,000 works during his lifetime. Early life and education Spencer Fullerton Baird was born in Reading, Pennsylvania in 1823. His mother was a member of the prominent Philadelphia Biddle family; he was a nephew of Speaker of the Pennsylvania Senate Charles B. Penrose and a first cousin, once removed, of U.S. Senator Boies Penrose and his distinguished brothers, Richard, Spencer, and Charles. He became a self-trained naturalist as a young man, le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viperidae
The Viperidae (vipers) are a family of snakes found in most parts of the world, except for Antarctica, Australia, Hawaii, Madagascar, and various other isolated islands. They are venomous and have long (relative to non-vipers), hinged fangs that permit deep penetration and injection of their venom. Four subfamilies are currently recognized. They are also known as viperids. The name "viper" is derived from the Latin word ''vipera'', -''ae'', also meaning viper, possibly from ''vivus'' ("living") and ''parere'' ("to beget"), referring to the trait viviparity (giving live birth) common in vipers like most of the species of Boidae. Description All viperids have a pair of relatively long solenoglyphous (hollow) fangs that are used to inject venom from glands located towards the rear of the upper jaws, just behind the eyes. Each of the two fangs is at the front of the mouth on a short maxillary bone that can rotate back and forth. When not in use, the fangs fold back against the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Scales
In snakes, the dorsal scales are the longitudinal series of plates that encircle the body, but do not include the ventral scales. Campbell JA, Lamar WW (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publishing Associates. 2 volumes. 870 pp. 1,500 plates. . When counting dorsal scales, numbers are often given for three points along the body, for example 19:21:17. These numbers correspond to the number of dorsal scales around the body at a head's length behind the head, at midbody and at a head's length before the vent. If only one number is given, it is for the midbody count. Dorsal scale are easiest to count diagonally, starting with the paraventral scale row. In doing so, it is often noted that certain scale rows are raised, keeled or smooth as opposed to the others.U.S. Navy (1991). ''Poisonous Snakes of the World''. United States Government. New York: Dover Publications Inc. 203 pp. . See also *Snake scales *Anatomical terms of locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Massasaugas
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location. Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter, and the resulting fragments and rubble strewn over the de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anna Allen Wright
Anna may refer to: People Surname and given name * Anna (name) Mononym * Anna the Prophetess, in the Gospel of Luke * Anna (wife of Artabasdos) (fl. 715–773) * Anna (daughter of Boris I) (9th–10th century) * Anna (Anisia) (fl. 1218 to 1221) * Anna of Poland, Countess of Celje (1366–1425) * Anna of Cilli (1386–1416) * Anna, Grand Duchess of Lithuania (died 1418) * Anne of Austria, Landgravine of Thuringia (1432–1462) * Anna of Nassau-Dillenburg (died 1514) * Anna, Duchess of Prussia (1576–1625) * Anna of Russia (1693–1740) * Anna, Lady Miller (1741–1781) * Anna Russell, Duchess of Bedford (1783–1857) * Anna, Lady Barlow (1873–1965) * Anna (feral child) (1932–1942) * Anna (singer) (born 1987) Places Australia * Hundred of Anna, a cadastral district in South Australia Iran * Anna, Fars, a village in Fars Province * Anna, Kohgiluyeh and Boyer-Ahmad, a village in Kohgiluyeh and Boyer-Ahmad Province Russia * Anna, Voronezh Oblast, an urban locality in Vorone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Hazen Wright
Albert Hazen Wright (August 15, 1879 – July 5, 1970) was an American herpetologist and professor at Cornell University. He was also an honorary member of the International Ornithological Congress. He did a great deal of study of the Okefenokee Swamp. In 1955 he won the Eminent Ecologist Award. Biography Albert Hazen Wright was born on August 15, 1879, in Hilton, New York, to parents Delos C. Wright and Emily Hazen. His parents also had a younger daughter named Mabel. On June 25, 1910, Wright married his wife, Anna Maria Allen, whom he met at Cornell University. Wright died on July 5, 1970, in Ithaca, New York, at the age of ninety. Education and career Wright attended Hilton High School and Brockport Normal School, and upon graduating high school, enrolled at Cornell University in Ithaca, New York, where he studied herpetology. He earned his PhD from Cornell in vertebrate zoology in 1908. Both Wright and his wife were interested in studying amphibians; as such, they would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roger Conant (herpetologist)
Roger Conant (May 6, 1909 – December 19, 2003) was an American herpetologist, author, educator and conservationist. He was Director Emeritus of the Philadelphia Zoo and adjunct professor at the University of New Mexico. He wrote one of the first comprehensive field guides for North American reptiles in 1958 entitled: ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America'', in the Peterson Field Guide series. Biography Born in Mamaroneck, New York, Conant lost his father when he was young. When he was a teenager he took a job at a local zoo to help his mother make ends meet, which, along with participating in the Boy Scouts of America, began his lifelong passion for reptiles. He was the first Eagle Scout in Monmouth County Council, New Jersey in 1924. He moved to Toledo, Ohio in 1929 and worked as Curator of Reptiles, and later General Curator at the Toledo Zoo from 1929 to 1935. In 1935 he returned to Philadelphia and became the Curator of Reptil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Watkins
Michael or Mike Watkins may refer to: * Michael D. Watkins, American author * Michael M. Watkins, American engineer and scientist * Michael W. Watkins Michael W. Watkins (often credited as Michael Watkins) is an American cinematographer, television director and television producer. He has worked on ''Smallville'', ''Boomtown'', ''The X-Files'', and '' Lois & Clark: The New Adventures of Super ..., American television producer * Mike Watkins (rugby union) (born 1952), Welsh rugby union player * Mike Watkins (basketball) (born 1995), American basketball player * Mike Watkins (American football) (born 1978), American football player * Mike K. Watkins (1947–1998), British explosive ordnance disposal expert commemorated at the Canadian National Vimy Memorial {{hndis, Watkins, Michael ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bo Beolens
Bo or BO may refer to Arts and entertainment Film, television, and theatre *Box office, where tickets to an event are sold, and by extension, the amount of business a production receives *'' BA:BO'', 2008 South Korean film * ''Bo'' (film), a Belgian film starring Ella-June Henrard and directed by Hans Herbots Gaming *'' Call of Duty: Black Ops'', a first-person shooter video game *'' Blood Omen: Legacy of Kain'', first in the Legacy of Kain video game series Music * Bo (instrument), a Chinese cymbal * Bo, a Greek rapper. Religion *Bo or Bodhi Tree * Bo (parsha), fifteenth weekly Torah reading Ethnic groups * Bo people (China), a nearly extinct minority population in Southern China *Bo people of Laos, see List of ethnic groups in Laos *Bo people (Andaman), a recently extinct group in the Andaman Islands Human names * Bo (given name), name origin, plus a list of people and fictional characters with the name or nickname * Bo (surname), name origin, plus a list of people wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecific Name
In zoological nomenclature, a subspecific name is the third part of a trinomen. In zoology there is only one rank below that of species, namely " subspecies". In botanical nomenclature, there are several levels of subspecific names, such as ''variety'' and ''form'', and even cultivar. The name of a subspecies is a trinomen, a trinomial name, i.e., a name that consists of three names: generic name, specific epithet, and subspecific epithet. The subspecific epithet is written like the specific epithet: without capitalisation but typeset in italics. See also * binomial nomenclature * trinomen * trinomial nomenclature In biology, trinomial nomenclature refers to names for taxa below the rank of species. These names have three parts. The usage is different in zoology and botany. In zoology In zoological nomenclature, a trinomen (), trinominal name, or ternar ... * in plants, an infraspecific taxon gets a three part name, a ternary name. {{DEFAULTSORT:Subspecific Name Zoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intergrade
In zoology, intergradation is the way in which two distinct subspecies are connected via areas where populations are found that have the characteristics of both. There are two types of intergradation: primary and secondary intergradation. Primary intergradation This occurs in cases where two subspecies are connected via one or more intermediate populations, each of which is in turn intermediate to its adjacent populations and exhibits more or less the same amount of variability as any other population within the species. Adjacent populations and subspecies are subject to cline intergradation, and in these situations it is usually taken for granted that the clines are causally related (by natural selection) to environmental gradients.Mayr E, Ashlock PD (1991). ''Principles of Systematic Zoology''. Second edition. McGraw-Hill. . Secondary intergradation When contact between a geographically isolated subspecies is reestablished with the main body of the species or with another ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
