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Joseph Richard Slevin
Joseph Richard Slevin (September 13, 1881 – February 17, 1957) was an American herpetologist and the second curator of herpetology at the California Academy of Sciences, with which he was affiliated for over 50 years. He collected reptile and amphibian specimens from around the world, notably in the Galápagos Islands in a 17-month expedition, and was largely responsible for re-growing the Academy's herpetological collection following its destruction in the 1906 San Francisco earthquake. He wrote or co-wrote nearly 60 scientific papers, and is commemorated in the scientific names of over a dozen species or subspecies of animals and plants. Early life Slevin was born in San Francisco, California, and attended St. Ignatius High School. His father, Thomas E. Slevin, was an amateur ornithologist and member of the California Academy of Sciences. Joseph studied classical languages at Saint Mary's College in Kansas, then enlisted in the United States Navy. By 1904 he had served his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco, California
San Francisco (; Spanish for "Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of , at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include ''SF'', ''San Fran'', ''The '', ''Frisco'', and ''Baghdad by the Bay''. San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fernandina Island
Fernandina Island (Spanish: ''Isla Fernandina'', named after King Ferdinand of Spain, the sponsor of Christopher Columbus) (formerly known in English as Narborough Island, after John Narborough) is the third largest, and youngest, island of the Galápagos Islands, as well as the furthest west. Like the others, the island was formed by the Galápagos hotspot. The island is an active shield volcano that has most recently been erupting since April 11, 2009. On February 14, 1825, while anchored in Banks Bay, Captain Benjamin Morrell recorded one of the largest eruptions in Galápagos' history at Fernandina Volcano. His ship escaped to safety and his account of the event was preserved. Fernandina has an area of and a height of , with a summit caldera about wide. The caldera underwent a collapse in 1968, when parts of the caldera floor dropped . A small lake has intermittently occupied the northern caldera floor, most recently in 1988. Due to its recent volcanic activity, the islan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neomammillaria Slevinii
''Mammillaria'' is one of the largest genera in the cactus family (Cactaceae), with currently 200 known species and varieties recognized. Most of the mammillaria are native to Mexico, but some come from the southwest United States, the Caribbean, Colombia, Venezuela, Guatemala and Honduras. The common name " pincushion cactus" refers to this and the closely related genus ''Escobaria''. The first species was described by Carl Linnaeus as ''Cactus mammillaris'' in 1753, deriving its name from Latin ''mammilla'', "nipple", referring to the tubercles that are among the distinctive features of the genus. Numerous species are commonly known as globe cactus, nipple cactus, birthday cake cactus, fishhook cactus or pincushion cactus though such terms may also be used for related taxa, particularly ''Escobaria''. Description The distinctive feature of the genus is the possession of an areole split into two clearly separated parts, one occurring at the apex of the tubercle, the othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulimulus Slevini
''Bulimulus'' is a genus of small to medium-sized tropical or sub-tropical, air-breathing land snails, pulmonate gastropod mollusks in the subfamily Bulimulinae within the family Bulimulidae.Breure A. S. H. & Romero P. (2012). "Support and surprises: molecular phylogeny of the land snail superfamily Orthalicoidea using a three-locus gene analysis with a divergence time analysis and ancestral area reconstruction (Gastropoda: Stylommatophora)". '' Archiv für Molluskenkunde: International Journal of Malacology'' 141 (1): 1-20. MolluscaBase eds. (2020). MolluscaBase. Bulimulus Leach, 1814. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=861633 on 2020-06-21 ''Bulimulus'' is the type genus of the subfamily Bulimulinae. The shells are high and conical, and are medium-sized, ranging from about 20 mm (0.8 inches) to about 50 mm (2 inches) long. Species Species in the genus ''Bulimulus'' include: * ''Bulimu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauromalus Slevini
''Sauromalus slevini'', also known as the Monserrat chuckwalla or Slevin's chuckwalla, is a species of chuckwalla belonging to the family Iguanidae. ''S. slevini'' is native to three small islands in the Sea of Cortés. Taxonomy and etymology The generic name, ''Sauromalus'', is said to be a combination of two ancient Greek words: ''sauros'' meaning "lizard" and ''omalus'' meaning "flat". The proper ancient Greek word for "flat" is however ''homalos'' (ὁμαλός) or ''homalēs'' (ὁμαλής). Its specific name, ''slevini'', is a latinized form of the surname of American zoologist Joseph Richard Slevin (1881–1957), who was Curator of Herpetology at the California Academy of Sciences from 1928 to 1957. The species was first described by American herpetologist John Van Denburgh in 1922. Van Denburgh, John (1922). "The Reptiles of Western North America. Volume I. Lizards" and "Volume II. Snakes and Turtles". ''Occasional Papers of the California Academy of Sciences'' 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudalsophis
''Pseudalsophis'' is a genus of snakes in the family Colubridae. The genus is endemic to South America. Geographic range Species in the genus ''Pseudalsophis'' are found in Ecuador (particularly the Galápagos) and Peru. Species Seven species are recognized as being valid. *'' Pseudalsophis biserialis'' – Galápagos racer, Floreana snake, Española snake, San Cristóbal snake *''Pseudalsophis darwini'' Zaher, Hassam; Yánez-Muños, Mario H.; Rodrigues, Miguel T.; Graboski, Roberta; Machado, Fabio A., Bonatto, Sandro L.; Grazziotin, Felipe G. (2018). "Origin and hidden diversity within the poorly known Galápagos radiation (Serpentes: Dipsadidae)". ''Systematics and Biodiversity''. Published online. (''Pseudalsophis darwini'', new species; ''P. hephaestus'', n. sp.; ''P. thomasi'', n. sp.). *''Pseudalsophis dorsalis'' – Galápagos snake, Fernandina snake, Isabela snake *''Pseudalsophis elegans'' *''Pseudalsophis hephaestus'' *''Pseudalsophis hoodensis'' – Hood Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, '' Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Author Citation (zoology)
In zoological nomenclature, author citation refers to listing the person (or team) who first makes a scientific name of a taxon available. This is done in a scientific work while fulfilling the formal requirements under the International Code of Zoological Nomenclature ("the Code"). According to Article 51.1 of the Code, "the name of the author does not form part of the name of a taxon and its citation is optional, although customary and often advisable", however recommendation 51A suggests: "The original author and date of a name should be cited at least once in each work dealing with the taxon denoted by that name. This is especially important and has a unique character between homonyms and in identifying species-group names which are not in their native combinations". For the seek of information retrieval, the author citation and year appended to the scientific name, e.g. genus-species-author-year, genus-author-year, family-author-year, etc., is often considered a "de facto" un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxon
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emoia Slevini
''Emoia slevini'', also known commonly as the Mariana skink, Slevin's brown skink, Slevin's emo skink, and Slevin's skink, is a species of lizard in the family Scincidae. The species is endemic to the Mariana Islands. Etymology The specific name, ''slevini'', is in honor of American herpetologist Joseph Richard Slevin. Habitat The preferred natural habitat of ''E. slevini'' is forest, at altitudes from sea level to . Description ''E. slevini'' is a moderately large-sized species for its genus. Adults have a snout-to-vent length of . Brown WC, Falanruw MVC (1972), p. 107. Reproduction ''E. slevini'' is oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), a .... References Further reading * Brown WC (1991). "Lizards of the Genus ''Emoia'' (Scincidae) with Observations o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slevin's Mouse
Slevin's mouse (''Peromyscus slevini''), also known as the Catalina deer mouse, is a species of rodent in the family Cricetidae. It is endemic to Isla Santa Catalina off the east coast of Baja California Sur, an island with an area of about , and it is the only native mammal on the island. It is named for Joseph Slevin, a curator at the California Academy of Sciences. Slevin's mouse is a large-bodied mouse, measuring about in total length, of which are the tail. They have pale cinnamon fur, mixed with dusky hairs, over the body, head, and flanks, with near-white underparts. They appear very similar to the related California mouse, but are paler in color and slightly larger. However, it may be most closely related to the North American deer mouse ''Peromyscus maniculatus'' is a rodent native to eastern North America. It is most commonly called the eastern deer mouse; when formerly grouped with the western deer mouse (''P. sonoriensis''), it was referred to as the North A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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