In the genus Ensatinas, she has been observed to coil around them and press her throat area against them, effectively massaging them with a mucous secretion.

The challenge to the status has focused on the Agnostina partly because juveniles of one genus have been found with legs greatly different from those of adult trilobites, suggesting they are not members of the lamellipedian clade, of which trilobites are a part.

The family also has important ornamentals, mainly from the dominant genus Allium, but also including genera such as Ipheion.

Heinrich Göppert named the common amber-yielding pine of the Baltic forests Pinites succiniter, but as the wood does not seem to differ from that of the existing genus it has been also called Pinus succinifera.

Although the family ( Amaranthaceae ) is distinctive, the genus has few distinguishing characters among the 70 species included.

This complicates taxonomy and Amaranthus has generally been considered among systematists as a " difficult " genus.

The taxonomy of the genus has been controversial.

Although it has previously been assigned to its own genus Alopex, genetic evidence places it in Vulpes ( Mammal Species of the World ) with the majority of the other foxes.

Some South American plants formerly thought of as Daturas are now treated as belonging to the distinct genus Brugmansia ( Brugmansia differs from Datura in that it is woody, making shrubs or small trees, and in that it has pendulous flowers, rather than erect ones ).

The brown hyena has sometimes been placed in a separate genus Parahyaena, or even included in the otherwise fossil genus Pachycrocuta, but recent sources have tended to place it in Hyaena.

The genus Cryptobranchus has historically only been considered to contain one species, Cryptobranchus alleganiensis, with two subspecies, Cryptobranchus alleganiensis alleganiensis and Cryptobranchus alleganiensis bishopi.

Although the word jackal has been historically used to refer to many small-to medium-sized species of the wolf genus of mammals, Canis, today it most properly and commonly refers to three species: the black-backed jackal and the side-striped jackal of sub-Saharan Africa, and the golden jackal of northern Africa and south-central Eurasia.

Heller's names and the designations he gave to various jackal species and subspecies live on in current taxonomy, although the genus has been changed from Thos to Canis.

Although it has morphological similarities with the pygmy killer whale, the false killer whale and the pilot whales, a study of cytochrome b gene sequences by Richard LeDuc indicated that its closest extant relatives are the snubfin dolphins of the genus Orcaella.

Also, a genus of lichen has been named Zamenhofia rosei in his honour.

The genus has a subcosmopolitan distribution across Europe, Africa, Asia, Australia, and North America.

The taxonomy of the genus Mimosa has had a tortuous history, having gone through periods of splitting and lumping, ultimately accumulating over 3, 000 names, many of which have either been synonymized under other species or transferred to other genera.

Fossil Olea pollen has been found in Macedonia, Greece, and other places around Mediterranean, indicating that this genus is an original element of the Mediterranean flora.

Much rethinking has come to be regarded as only a special case of the property genus.

The Passenger Pigeon is a member of the Columbidae family ( pigeons and doves ) that has been assigned to the genus Ectopistes.

As the senior synonym, Cuvier's name has precedence, so applying modern rules for the combination of the genus name and the specific epithet, the valid species name became Ptéro-Dactyle antiquus.

Unaware of Rafinesque's publication Cuvier himself in 1819 again Latinized the genus, but the specific name he then gave, longirostris, has to give precedence to von Soemmerring's antiquus.

However, it has been difficult to determine exactly of what genus and species P. micronyx might be the juvenile form.

It has sometimes been placed in the genus Diopecephalus because Harry Govier Seeley based this genus partly on the P. longicollum material.

However, the tree constructed by the living tree project, a collaboration between ARB-Silva and LPSN where a 16S ( and 23S if available ) tree of all validated species was constructed, the genus Bacillus contains a very large number of nested taxa and majorly in both 16S and 23S it is paraphyletic to Lactobacillales ( Lactobacillus, Streptococcus, Staphylococcus, Listeria, etc.

While clearly attributable to the presence of the opportunistic pathogens of the genus Candida, candidiasis describes a number of different disease syndromes that often differ in their causes and outcomes.

Despite a large number of Homo fossils finds, chimpanzee fossils ( genus Pan ) were not described until 2005.

It is the only extant member of the genus Cuon, which differs from Canis by the reduced number of molars and greater number of teats.

For closed ( orientable or non-orientable ) surfaces with positive genus, the maximum number p of colors needed depends on the surface's Euler characteristic χ according to the formula

The IUCN reported in 2008, " The taxonomy of this genus is clearly in need of review, and it is likely that O. orca will be split into a number of different species or at least subspecies over the next few years.

It is the sole living representative of its family ( Ornithorhynchidae ) and genus ( Ornithorhynchus ), though a number of related species have been found in the fossil record.

For instance, power laws are thought to characterize the behavior of the upper tails for the popularity of websites, the degree distribution of the webgraph, describing the hyperlink structure of the WWW, the net worth of individuals, the number of species per genus, the popularity of given names, Gutenberg – Richter law of earthquake magnitudes, the size of financial returns, and many others.

The genus Sus is currently considered to have 10 living species and a number of extinct species known as fossila:

* Phoebis, a genus of Coliadinae that is not itself called the Sulfurs but that contains a number of species which are

The genus contains at least 68 described extant taxa, but the true number of species is a matter of debate.

The genus Gossypium comprises around 50 species, making it the largest in species number in the tribe Gosssypioieae.

The genus is divided into two subgenera and a number of sections:

With the number of species increasing, the genus was divided into the two subgenera Magnolia and Yulania.

Cod is also used as part of the commons name for a number of other fishes, and there are species suggested to belong to genus Gadus that are not called cod ( the Alaska pollock ).

The term is widely needed to support the more esoteric requirements of a number of disciplines including in philosophy when a concept is not available ; in biology when a genus is not available ; in law when a special and unique interpretation of a case or authority will be needed on-the-fly ; in town-planning where there is no existing use-case ; in intellectual property rights where there is no defining characteristic ; and in politics and societal norms where there is no real authority perceived.

A species that is the lone extant member of its genus ( e. g. the Homo genus ) is not necessarily sui generis: extinction processes may have eliminated any number of species for which the genus was created.

The genus is unusual in that species throughout the genus, even those coming from different continents, can frequently be hybridized with each other, and this has led to an enormous number of cultivars.

The genus Allium also contains a number of other species variously referred to as onions and cultivated for food, such as the Japanese bunching onion ( A. fistulosum ), Egyptian onion ( A.

The Plant List recognizes about 70 species in the order, but a phylogenetic study of the genus Nymphaea implies that the number of species could be more than 90.

This genus has the highest number of species among the white-eyes by far.