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Phyllorhynchus
''Phyllorhynchus'' is a genus of snakes in the family Colubridae. The genus is native to the southwestern United States and adjacent northwestern Mexico. Species The genus ''Phyllorhynchus'' contains two species which are recognized as being valid. *'' Phyllorhynchus browni'' - saddled leafnose snake *'' Phyllorhynchus decurtatus'' - spotted leafnose snake ''Nota bene'': A binomial authority in parentheses indicates that the species was originally described in a genus other than ''Phyllorhynchus''. Description Snakes of the genus ''Phyllorhynchus'' are heavy-bodied, but small, in total length, which includes a short tail. The snout is short and shovel-like. The rostral scale The rostral scale, or rostral, in snakes and other scaled reptiles is the median plate on the tip of the snout that borders the mouth opening. Wright AH, Wright AA (1957). ''Handbook of Snakes of the United States and Canada''. Ithaca and London: ... is enlarged and has free lateral edges. Wright AH, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllorhynchus Decurtatus
''Phyllorhynchus decurtatus'', the spotted leafnose snake, is a species of snake in the family Colubridae. The snake is found in the United States and Mexico. Description ''Phyllorhynchus decurtatus'' is a small snake ranging from around in length. The dorsal half of its body varies in color but is generally light brown, with some individuals appearing more cream, pink, or grey colored. It's patterning consists of dark, irregular blotches down the length of its back, and the amount of spots varies between individuals and populations. Markings come in various shades of brown, and are darker along their borders. The amount of blotches on the body range from 18 to 60, and the amount on the tail ranges from 2-15. This species has a dark band running across both of the eyes, which have vertical pupils. It also has a large rostral scale, hence the common name leafnose snake. Distribution and habitat The range of ''Phyllorhynchus decurtatus'' extends throughout the southwestern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllorhynchus
''Phyllorhynchus'' is a genus of snakes in the family Colubridae. The genus is native to the southwestern United States and adjacent northwestern Mexico. Species The genus ''Phyllorhynchus'' contains two species which are recognized as being valid. *'' Phyllorhynchus browni'' - saddled leafnose snake *'' Phyllorhynchus decurtatus'' - spotted leafnose snake ''Nota bene'': A binomial authority in parentheses indicates that the species was originally described in a genus other than ''Phyllorhynchus''. Description Snakes of the genus ''Phyllorhynchus'' are heavy-bodied, but small, in total length, which includes a short tail. The snout is short and shovel-like. The rostral scale The rostral scale, or rostral, in snakes and other scaled reptiles is the median plate on the tip of the snout that borders the mouth opening. Wright AH, Wright AA (1957). ''Handbook of Snakes of the United States and Canada''. Ithaca and London: ... is enlarged and has free lateral edges. Wright AH, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllorhynchus Browni
''Phyllorhynchus browni'', the saddled leafnose snake, is a species of snake of the family Colubridae. The snake is found in Arizona in the United States and Mexico. Etymology The specific name, ''browni'', is in honor of American ornithologist Herbert Brown (1848–1913), who collected the holotype A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ....Stejneger, 1890. References Phyllorhynchus Reptiles of the United States Reptiles of Mexico Reptiles described in 1890 Taxa named by Leonhard Stejneger {{Colubrinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colubridae
Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest fossil species of the family date back to the Late Eocene epoch, with earlier origins suspected. Colubrid snakes are found on every continent except Antarctica. Description Colubrids are a very diverse group of snakes. They can exhibit many different body styles, body sizes, colors, and patterns. They can also live in many different types of habitats including aquatic, terrestrial, semi-arboreal, arboreal, desert, mountainous forests, semi-fossorial, and brackish waters. A primarily shy and harmless group of snakes, the vast majority of colubrids are not venomous, nor do most colubrids produce venom that is medically significant to mammals. However, the bites of some can escalate quickly to emergency situations. Furthermore, within the Colubridae, the South African boomslang and twig snakes, as well as the Asian keelback snakes (' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake Genera
List of reptile genera lists the vertebrate class of reptiles by living genus, spanning two subclasses. Subclass Anapsida Order Testudinata (turtles) Turtles are reptiles of the order Testudines characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. Suborder Pleurodira Source: * Superfamily Cheloides ** Family Chelidae *** Genus '' Acanthochelys'' *** Genus '' Chelodina'' *** Genus '' Chelus'' - mata mata *** Genus '' Elseya'' *** Genus '' Elusor'' - Mary River turtle *** Genus '' Emydura'' *** Genus '' Flaviemys'' - Manning River snapping turtle *** Genus '' Hydromedusa'' *** Genus '' Mesoclemmys'' *** Genus '' Myuchelys'' *** Genus '' Phrynops'' *** Genus '' Platemys'' - twist-necked turtle *** Genus '' Pseudemydura'' - western swamp turtle *** Genus '' Ranacephala'' - Hoge's side-necked turtle *** Genus '' Rheodytes'' *** Genus '' Rhinemys'' - red side-necked turtle * Superfamily Pelomedusoides ** Family Pelomedusidae ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonhard Stejneger
Leonhard Hess Stejneger (30 October 1851 – 28 February 1943) was a Norwegian-born American ornithologist, herpetologist and zoologist. Stejneger specialized in vertebrate natural history studies. He gained his greatest reputation with reptiles and amphibians. Wetmore, Alexander (1945). "Leonhard Hess Stejneger (1851–1943)". ''Biographical Memoir. Nat. Acad. Sci.'' 24: 145–195PDF/ref> Early life and family Stejneger was born in Bergen, Norway. His father was Peter Stamer Steineger, a merchant and auditor; his mother was Ingeborg Catharine (née Hess). Leonhard was the eldest of seven children. His sister Agnes Steineger was a Norwegian artist. Until 1880, the Steineger family had been one of the wealthy families in Bergen; at that time business reverses led to the father declaring bankruptcy. Stejneger attended the Smith Theological School in Bergen from 1859 to 1860, and Bergen Latin School until 1869. His interests in zoology developed early. By age sixteen, he h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontology, paleontologist, comparative anatomy, comparative anatomist, herpetology, herpetologist, and ichthyology, ichthyologist. Born to a wealthy Quaker family, he distinguished himself as a child prodigy interested in science, publishing his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the Western United States, American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey, U.S. Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competition now known as the Bone Wars. Cope's financial fortunes soured after failed mining ventures i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nota Bene
( ; plural: ) is the Latin language, Latin phrase meaning ''note well''. In manuscripts, ''nota bene'' is abbreviated in upper-case as NB and N.B., and in lower-case as n.b. and nb; the editorial usages of ''nota bene'' and ''notate bene'' first appeared in the English writing style, English style of writing around the year 1711. In Modern English, since the 14th century, the editorial usage of ''NB'' is common to the legal writing, legal style of writing of documents to direct the reader's attention to a thematically relevant aspect of the subject that qualifies the matter being litigated, whereas in academic writing, the editorial abbreviation ''n.b.'' is a casual synonym for ''footnote''. In medieval manuscripts, the editorial marks used to draw the reader's attention to a supporting text also are called marks; however, the catalogue of medieval editorial marks does not include the NB abbreviation. The medieval equivalents to the n.b.-mark are anagrams derived from the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rostral Scale
The rostral scale, or rostral, in snakes and other scaled reptiles is the median plate on the tip of the snout that borders the mouth opening. Wright AH, Wright AA (1957). ''Handbook of Snakes of the United States and Canada''. Ithaca and London: Comstock Publishing Associates. (7th printing, 1985). 1,105 pp. (in two volumes). . It corresponds to the mental scale in the lower jaw. The term pertains to the rostrum, or nose. In snakes, the shape and size of this scale is one of many characteristics used to differentiate species from one another. Related scales * Nasorostral scale * Mental scale *Labial scales See also * Snake scales *Anatomical terms of location Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pr ... References {{Reflist Snake scales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
