| Cnemidophorus senectus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Teiidae |
| Genus: | Cnemidophorus |
| Species: | C. senectus |
| Binomial name | |
| Cnemidophorus senectus | |
Cnemidophorus senectus is a species of teiid lizard endemic to Venezuela. [2]
Teiidae is a family of autarchoglossan lizards native to the Americas. Members of this family are generally known as whiptails or racerunners; however, tegus also belong to this family. Teiidae is sister to the Gymnopthalmidae, and both families comprise the Teiioidea. The Teiidae includes several parthenogenic species – a mode of clonal reproduction. Presently, the Teiidae consists of approximately 150 species in eighteen genera.
Cnemidophorus is a genus of lizards in the family Teiidae. Species in the genus Cnemidophorus are commonly referred to as whiptail lizards or racerunners. The genus is endemic to South America, Central America, and the West Indies.
The western whiptail is a species of lizard in the family Teiidae. The species ranges throughout most of the southwestern United States and northern Mexico. Most of its populations appear stable, and it is not listed as endangered in any of the states comprising its range. It lives in a wide variety of habitats, including deserts and semiarid shrubland, usually in areas with sparse vegetation; it also may be found in woodland, open dry forest, and riparian growth. It lives in burrows. Major differences between this species and the checkered whiptail include the lack of enlarged scales anterior to the gular fold and the presence of enlarged postantebrachial scales. It was previously known as Cnemidophorus tigris, until phylogenetic analyses concluded that the genus Cnemidophorus was polyphyletic. Since it does not migrate, a number of forms have developed in different regions, several of which have been given subspecific names – for example the California whiptail, Aspidoscelis tigris munda.
The desert grassland whiptail lizard is an all-female species of reptiles in North America. It was formerly placed in the genus Cnemidophorus. A common predator of the whiptail lizard is the leopard lizard, that prey on A. uniparens by using ambush and stalk haunting tactics. These reptiles reproduce by parthenogenesis. In this process, eggs undergo a chromosome doubling after meiosis, developing into lizards without being fertilized. However, ovulation is enhanced by female-female courtship and "mating" (pseudo-copulation) rituals that resemble the behavior of closely related species that reproduce sexually.
The orange-throated whiptail is a species of lizard in the family Teiidae. The species was previously placed in the genus Cnemidophorus. Three subspecies are recognized as being valid, including the nominotypical subspecies.
The Texas spotted whiptail is a species of long-tailed lizard, in the family Teiidae. The species is endemic to the south central and southwestern United States and northern Mexico. Six subspecies are recognized as being valid.
The six-lined racerunner is a species of lizard native to the United States and Mexico.
The Saint Lucia whiptail, also known commonly as the Maria Islands whiptail, the Saint Lucian whiptail, and Vanzo's whiptail, is a species of lizard in the family Teiidae. The species is indigenous to the Caribbean.
Cnemidophorus murinus, known commonly as Laurent's whiptail, is a species of lizard in the family Teiidae (whiptails). The species is endemic to Curacao, and is oviparous.
Aspidoscelis deppii, known commonly as the blackbelly racerunner, is a species of lizard in the family Teiidae. The species is native to Central America and southern Mexico. There are three recognized subspecies.
Aspidoscelis rodecki, also known commonly as Rodeck's whiptail, is a species of lizard in the family Teiidae. The species is endemic to Mexico.
Aspidoscelis sackii, known commonly as Sack's spotted whiptail, is a species of lizard in the family Teiidae. The species is endemic to Mexico. There are three recognized subspecies.
Cnemidophorus arenivagus is a species of teiid lizard found in Venezuela.
Cnemidophorus flavissimus is a species of teiid lizard found on Islas Los Frailes in Venezuela.
Cnemidophorus gramivagus is a species of teiid lizard found in Venezuela, Colombia, and Brazil.
Cnemidophorus leucopsammus is a species of teiid lizard endemic to Blanquilla Island in Venezuela.
Cnemidophorus nigricolor is a species of teiid lizard endemic to Venezuela.
Cnemidophorus pseudolemniscatus, Colee's racerunner, is a species of teiid lizard found in Suriname and French Guiana.
Cnemidophorus ruthveni is a species of teiid lizard endemic to Bonaire and commonly known as the Bonaire whiptail. It was formerly considered a subspecies of Cnemidophorus murinus, commonly known as Laurent's whiptail, but that name is now restricted to the form found on the island of Curacao.
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