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Viruses are so narrowly named at the species level (e.g. Human herpesvirus-5) that including the genus would usually be superfluous, and they are capitalized like a genus. The word "virus" at the end of a viral species or genus name is not capitalized. Higher taxa (family, order, etc.) are capitalized but not italicized.
In a classification system based on ranks, there are also ways of naming ranks above the level of genus and below the level of species. Ranks above genus (e.g., family, order, class) receive one-part names, which are conventionally not written in italics. Thus, the house sparrow, Passer domesticus, belongs to the family Passeridae. Family names ...
The second part of a binomial species name is never capitalized, even when derived from a proper name (but is always italicized), and is always preceded by either the genus name, or a capitalized abbreviation of it if the full version has occurred previously in the same text: Thomson's gazelle is Eudorcas thomsonii or E. thomsonii.
The species name is also called a binomial, that is, a two-term name. For example, the zoological name for the human species is Homo sapiens. This is usually italicized in print or underlined when italics are not available. In this case, Homo is the generic name and it is capitalized; sapiens indicates the species and it is not capitalized ...
The name sardine is used for many different species of small, oily fishes; the appropriate things to do are to write an article describing the attributes the species have in common under that name, and create separate articles for each genus. However, when there is a clear core meaning for the common name, with other meanings by analogy, then ...
The hierarchy of biological classification's eight major taxonomic ranks.A family contains one or more genera. Intermediate minor rankings are not shown. Genus (/ ˈ dʒ iː n ə s /; pl.: genera / ˈ dʒ ɛ n ər ə /) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. [1]
Each of the words within the epithet (with some permitted exceptions such as conjunctions) is capitalized, e.g., Osteospermum 'Pink Whirls'. Articles on named cultivars follow the Genus 'Cultivar Name ' convention for single-species parentage; e.g. Grevillea 'Robyn Gordon'.
The genus name always begins with a capital letter. The species name always begins with a lower case letter. Rules 4 and 5 override the rules of all languages about capitalization of titles (Note that it is impossible for a species name to be the first word in a title.). Genus and species names are always written in italics.