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Agkistrodon
''Agkistrodon'' is a genus of venomous pit vipers commonly known as American moccasins.Crother, B. I. (ed.). 2017. ''Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, with Comments Regarding Confidence in Our Understanding.'' SSAR Herpetological Circular 43, 1–102 pp. (page 59)Liner, E. A. and G. Casas-Andreu. 2008. ''Standard Spanish, English and scientific names of the amphibians and reptiles of Mexico.'' Society for the Study Amphibians and Reptiles. Herpetological Circular 38: i-iv, 1-162. (pages 95-96) The genus is endemic to North America, ranging from the Southern United States to northern Costa Rica. Eight species are currently recognized,Porras, Louis W., Larry David Wilson, Gordon W. Schuett, and Randall S. Reiserer 2013. ''A taxonomic reevaluation and conservation assessment of the common cantil, Agkistrodon bilineatus (Squamata: Viperidae): a race against time''. Amphibian & Reptile Conservation 7(1): 48–73. all of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agkistrodon Piscivorus
''Agkistrodon piscivorus'' is a species of pit viper in the subfamily Crotalinae of the family Viperidae. It is one of the world's few semiaquatic vipers (along with the Florida cottonmouth), and is native to the southeastern United States. As an adult, it is large and capable of delivering a painful and potentially fatal bite. When threatened, it may respond by coiling its body and displaying its fangs. Individuals may bite when feeling threatened or being handled in any way. It tends to be found in or near water, particularly in slow-moving and shallow lakes, streams, and marshes. It is a capable swimmer and, like several species of snakes, is known to occasionally enter bays and estuaries and swim between barrier islands and the mainland. Gloyd HK, Conant R (1990). ''Snakes of the ''Agkistrodon'' Complex: A Monographic Review''. Society for the Study of Amphibians and Reptiles. 614 pp. 52 plates. LCCN 89-50342. . The generic name is derived from the Greek words ''ankistro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agkistrodon Contortrix
The eastern copperhead (''Agkistrodon contortrix''), also known as the copperhead, is a species of venomous snake, a pit viper, endemic to eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae. The eastern copperhead has distinctive, dark brown, hourglass-shaped markings, overlaid on a light reddish brown or brown/gray background. The body type is heavy, rather than slender. Neonates are born with green or yellow tail tips, which progress to a darker brown or black within one year. Adults grow to a typical length (including tail) of . In most of North America, it favors deciduous forest and mixed woodlands. It may occupy rock outcroppings and ledges, but is also found in low-lying, swampy regions. During the winter, it hibernates in dens or limestone crevices, often together with timber rattlesnakes and black rat snakes. The eastern copperhead is known to feed on a wide variety of prey, including invertebrates (primarily arthropods) and ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agkistrodon Bilineatus 1701 (cropped)
''Agkistrodon'' is a genus of venomous pit vipers commonly known as American moccasins.Crother, B. I. (ed.). 2017. ''Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, with Comments Regarding Confidence in Our Understanding.'' SSAR Herpetological Circular 43, 1–102 pp. (page 59)Liner, E. A. and G. Casas-Andreu. 2008. ''Standard Spanish, English and scientific names of the amphibians and reptiles of Mexico.'' Society for the Study Amphibians and Reptiles. Herpetological Circular 38: i-iv, 1-162. (pages 95-96) The genus is endemic to North America, ranging from the Southern United States to northern Costa Rica. Eight species are currently recognized,Porras, Louis W., Larry David Wilson, Gordon W. Schuett, and Randall S. Reiserer 2013. ''A taxonomic reevaluation and conservation assessment of the common cantil, Agkistrodon bilineatus (Squamata: Viperidae): a race against time''. Amphibian & Reptile Conservation 7(1): 48–73. all of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agkistrodon Bilineatus
:Common names: ''cantil, Mexican cantil, Mexican ground pit viper, Gloyd HK, Conant R. 1990. ''Snakes of the Agkistrodon Complex: A Monographic Review''. Society for the Study of Amphibians and Reptiles. 614 pp. 52 plates. LCCN 89-50342. . cantil viper,Mehrtens JM. 1987. ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . black moccasin,Campbell JA, Lamar WW. 2004. ''The Venomous Reptiles of the Western Hemisphere''. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. . Mexican moccasin, more.'' ''Agkistrodon bilineatus'' is a highly venomous pit viper species found in Mexico and Central America as far south as Honduras. Description These are heavy-bodied snakes, and share the same general body structure with copperheads. They average around in length and have a broad, triangular-shaped head with small eyes that have vertical pupils. Coloration can vary, but most are brown or black, with darker brown or black banding, sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit Viper
The Crotalinae, commonly known as pit vipers,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . crotaline snakes (from grc, κρόταλον ''krotalon'' castanet), or pit adders, are a subfamily of vipers found in Eurasia and the Americas. Like all other vipers, they are venomous. They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on both sides of the head. Currently, 23 genera and 155 species are recognized: These are also the only viperids found in the Americas. The groups of snakes represented here include rattlesnakes, lanceheads, and Asian pit vipers. The type genus for this subfamily is ''Crotalus'', of which the type species is the timber rattlesnake, ''C. horridus''. These snakes range in size from the diminutive hump-nosed viper, ''Hypnale hypnale'', that grows to a typical total length (including tail) of only , to the bushmaster, ''Lachesis muta'', a specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerald Troost
Gerardus Troost (March 5, 1776 – August 14, 1850) was a Dutch-American medical doctor, naturalist, mineralogist, and founding member and first president of the Philadelphia Academy of Natural Sciences.; archive.org copie Biography Troost was born in Den Bosch, Netherlands, to Anna Cornelia (Van Heeck) and Everardus Josephus Troost. He received the degree of Doctor of Medicine from the University of Leyden, and of Master in Pharmacy, in 1801, from the University of Amsterdam. After a brief practice at Amsterdam and the Hague, he was enlisted in the army as a private soldier, and then as an officer of the first class in the medical department. During these periods of service, he was wounded in the thigh and in the head. In 1807 Troost went to Paris under the patronage of Louis Napoleon, King of Holland. There he studied at the School of Mines with renowned mineralogist René Just Haüy. While in Paris, he translated into the Dutch language one of the earlier works of Alexander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ankistrodon
''Ankistrodon'' is an extinct genus of archosauriform known from the Early Triassic Panchet Formation of India. First thought to be a theropod dinosaur, it was later determined to be a proterosuchid. The type species is ''A. indicus'', described by prolific British zoologist Thomas Henry Huxley in 1865.T. H. Huxley. 1865. On a collection of vertebrate fossils from the Panchet rocks, Ranigunj, Bengal. ''Palaeontologia Indica'' 4:1-24 One authority in the 1970s classified ''Ankistrodon'' as a senior synonym of ''Proterosuchus''. References Fossil taxa described in 1865 Early Triassic reptiles of Asia Taxa named by Thomas Henry Huxley Prehistoric reptile genera {{triassic-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supralabial Scales
In reptiles, the supralabial scales, also called upper-labials, are those scales that border the mouth opening along the upper jaw. They do not include the median scaleWright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . (rostral scale). The term ''labial'' originates from ''Labium'' (Latin for "lip"), which refers to any lip-like structure. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another. Related scales * Sublabial scales * Rostral scale * Mental scale See also * Labial scales * Snake scales * Anatomical terms of location Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algonquian Languages
The Algonquian languages ( or ; also Algonkian) are a subfamily of Indigenous languages of the Americas, indigenous American languages that include most languages in the Algic languages, Algic language family. The name of the Algonquian language family is distinguished from the orthographically similar Algonquin language, Algonquin dialect of the Indigenous Ojibwe language (Chippewa), which is a senior member of the Algonquian language family. The term ''Algonquin'' has been suggested to derive from the Maliseet word (), "they are our relatives/allies". A number of Algonquian languages are considered extinct languages by the modern linguistic definition. Algonquian peoples, Speakers of Algonquian languages stretch from the east coast of North America to the Rocky Mountains. The proto-language from which all of the languages of the family descend, Proto-Algonquian language, Proto-Algonquian, was spoken around 2,500 to 3,000 years ago. There is no scholarly consensus about wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sublabials
In reptiles, the sublabial scales, also called lower-labials or infralabials, are those scales that border the mouth opening along the lower jaw. They do not include the median scaleWright AH, Wright AA. 1957. ''Handbook of Snakes''. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . (mental scale). The term ''labial'' originates from ''labium'' (Latin for "lip"), which refers to any lip-like structure. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another. Related scales * Supralabial scales * Rostral scale * Mental scale See also * Labial scales * Snake scales * Anatomical terms of location Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ... References {{Reflist Snake ... [...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] |
Ventral Scales
In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that contacts the paraventral (lowermost) row of dorsal scales on either side. The anal scale is not counted.Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. 2 volumes. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. . Related scales * Preventral scales * Anal scale * Subcaudal scales * Paraventral scales See also * Snake scale Snakes, like other reptiles, have skin covered in scale (zoology), scales.Boulenger, George A. 1890 The Fauna of British India. p. 1 Snakes are entirely covered with scales or scutes of various shapes and sizes, known as snakeskin as a whole. A ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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